This document is obsolete. Please
refer to RFC 4560.
Network Working Group K. White Request for Comments: 2925 IBM Corp. Category: Standards Track September 2000
Definitions of Managed Objects for Remote Ping, Traceroute, and Lookup Operations
Status of this Memo
This document specifies an Internet standards track protocol for the Internet community, and requests discussion and suggestions for improvements. Please refer to the current edition of the "Internet Official Protocol Standards" (STD 1) for the standardization state and status of this protocol. Distribution of this memo is unlimited.
Copyright Notice
Copyright (C) The Internet Society (2000). All Rights Reserved.
Abstract
This memo defines Management Information Bases (MIBs) for performing remote ping, traceroute and lookup operations at a remote host. When managing a network it is useful to be able to initiate and retrieve the results of ping or traceroute operations when performed at a remote host. A Lookup capability is defined in order to enable resolving of either an IP address to an DNS name or an DNS name to an IP address at a remote host.
Currently, there are several enterprise-specific MIBs for performing remote ping or traceroute operations. The purpose of this memo is to define a standards-based solution to enable interoperability.
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this document are to be interpreted as described in RFC 2119, reference [13].
This document is a product of the Distributed Management (DISMAN) Working Group. Its purpose is to define standards-based MIB modules for performing specific remote operations. The remote operations defined by this document consist of the ping, traceroute and lookup functions.
Ping and traceroute are two very useful functions for managing networks. Ping is typically used to determine if a path exists between two hosts while traceroute shows an actual path. Ping is usually implemented using the Internet Control Message Protocol (ICMP) "ECHO" facility. It is also possible to implement a ping capability using alternate methods, some of which are:
In general, almost any request/response flow can be used to generate a round-trip time. Often many of the non-ICMP ECHO facility methods stand a better chance of yielding a good response (not timing out for
White Standards Track [Page 2]
RFC 2925 Ping, Traceroute, and Lookup MIBs September 2000
example) since some routers don't honor Echo Requests (timeout situation) or they are handled at lower priority, hence possibly giving false indications of round trip times.
It must be noted that almost any of the various methods used for generating a round-trip time can be considered a form of system attack when used excessively. Sending a system requests too often can negatively effect its performance. Attempting to connect to what is supposed to be an unused port can be very unpredictable. There are tools that attempt to connect to a range of TCP ports to test that any receiving server can handle erroneous connection attempts.
It also is important to the management application using a remote ping capability to know which method is being used. Different methods will yield different response times since the protocol and resulting processing will be different. It is RECOMMENDED that the ping capability defined within this memo be implemented using the ICMP Echo Facility.
Traceroute is usually implemented by transmitting a series of probe packets with increasing time-to-live values. A probe packet is a UDP datagram encapsulated into an IP packet. Each hop in a path to the target (destination) host rejects the probe packet (probe's TTL too small) until its time-to-live value becomes large enough for the probe to be forwarded. Each hop in a traceroute path returns an ICMP message that is used to discover the hop and to calculate a round trip time. Some systems use ICMP probes (ICMP Echo request packets) instead of UDP ones to implement traceroute. In both cases traceroute relies on the probes being rejected via an ICMP message to discover the hops taken along a path to the final destination. Both probe types, UDP and ICMP, are encapsulated into an IP packet and thus have a TTL field that can be used to cause a path rejection.
Implementations of the remote traceroute capability as defined within this memo SHOULD be done using UDP packets to a (hopefully) unused port. ICMP probes (ICMP Echo Request packets) SHOULD NOT be used. Many PC implementations of traceroute use the ICMP probe method, which they should not, since this implementation method has been known to have a high probability of failure. Intermediate hops become invisible when a router either refuses to send an ICMP TTL expired message in response to an incoming ICMP packet or simply tosses ICMP echo requests altogether.
The behavior of some routers not to return a TTL expired message in response to an ICMP Echo request is due in part to the following text extracted from RFC 792 [20]:
White Standards Track [Page 3]
RFC 2925 Ping, Traceroute, and Lookup MIBs September 2000
"The ICMP messages typically report errors in the processing of datagrams. To avoid the infinite regress of messages about messages etc., no ICMP messages are sent about ICMP messages."
Both ping and traceroute yield round-trip times measured in milliseconds. These times can be used as a rough approximation for network transit time.
The Lookup operation enables the equivalent of either a gethostbyname() or a gethostbyaddr() call being performed at a remote host. The Lookup gethostbyname() capability can be used to determine the symbolic name of a hop in a traceroute path.
A local host is the host from which the remote ping, traceroute, or Lookup operation is initiated using an SNMP request. The remote host is a host where the MIBs defined by this memo are implemented that receives the remote operation via SNMP and performs the actual ping, traceroute, or lookup function.
The SNMP Management Framework presently consists of five major components:
o An overall architecture, described in RFC 2571 [7].
o Mechanisms for describing and naming objects and events for the purpose of management. The first version of this Structure of Management Information (SMI) is called SMIv1 and described in STD 16, RFC 1155 [14], STD 16, RFC 1212 [15] and RFC 1215 [16]. The second version, called SMIv2, is described in STD 58, RFC 2578 [3], STD 58, RFC 2579 [4] and STD 58, RFC 2580 [5].
White Standards Track [Page 4]
RFC 2925 Ping, Traceroute, and Lookup MIBs September 2000
o Message protocols for transferring management information. The first version of the SNMP message protocol is called SNMPv1 and described in STD 15, RFC 1157 [1]. A second version of the SNMP message protocol, which is not an Internet standards track protocol, is called SNMPv2c and described in RFC 1901 [17] and RFC 1906 [18]. The third version of the message protocol is called SNMPv3 and described in RFC 1906 [18], RFC 2572 [8] and RFC 2574 [10].
o Protocol operations for accessing management information. The first set of protocol operations and associated PDU formats is described in STD 15, RFC 1157 [1]. A second set of protocol operations and associated PDU formats is described in RFC 1905 [6].
o A set of fundamental applications described in RFC 2573 [9] and the view-based access control mechanism described in RFC 2575 [11].
Managed objects are accessed via a virtual information store, termed the Management Information Base or MIB. Objects in the MIB are defined using the mechanisms defined in the SMI.
This memo specifies MIB modules that are compliant to the SMIv2. A MIB conforming to the SMIv1 can be produced through the appropriate translations. The resulting translated MIB must be semantically equivalent, except where objects or events are omitted because no translation is possible (use of Counter64). Some machine readable information in SMIv2 will be converted into textual descriptions in SMIv1 during the translation process. However, this loss of machine readable information is not considered to change the semantics of the MIB.
RFC 2925 Ping, Traceroute, and Lookup MIBs September 2000
o DISMAN-NSLOOKUP-MIB
Provides access to the resolver gethostbyname() and gethostbyaddr() functions at a remote host.
The ping and traceroute MIBs are structured to allow creation of ping or traceroute tests that can be set up to periodically issue a series of operations and generate NOTIFICATIONs to report on test results. Many network administrators have in the past written UNIX shell scripts or command batch files to operate in fashion similar to the functionality provided by the ping and traceroute MIBs defined within this memo. The intent of this document is to acknowledge the importance of these functions and to provide a standards-based solution.
The object pingMaxConcurrentRequests enables control of the maximum number of concurrent active requests that an agent implementation supports. It is permissible for an agent either to limit the maximum upper range allowed for this object or to implement this object as read-only with an implementation limit expressed as its value.
A remote ping test is started by setting pingCtlAdminStatus to enabled(1). The corresponding pingCtlEntry MUST have been created and its pingCtlRowStatus set to active(1) prior to starting the test. A single SNMP PDU can be used to create and start a remote ping test. Within the PDU, pingCtlTargetAddress should be set to the target host's address (pingCtlTargetAddressType will default to ipv4(1)), pingCtlAdminStatus to enabled(1), and pingCtlRowStatus to createAndGo(4).
White Standards Track [Page 6]
RFC 2925 Ping, Traceroute, and Lookup MIBs September 2000
The first index element, pingCtlOwnerIndex, is of type SnmpAdminString, a textual convention that allows for use of the SNMPv3 View-Based Access Control Model (RFC 2575 [11], VACM) and allows a management application to identify its entries. The send index, pingCtlTestName (also an SnmpAdminString), enables the same management application to have multiple requests outstanding.
Using the maximum value for the parameters defined within a pingEntry can result in a single remote ping test taking at most 15 minutes (pingCtlTimeOut times pingCtlProbeCount) plus whatever time it takes to send the ping request and receive its response over the network from the target host. Use of the defaults for pingCtlTimeOut and pingCtlProbeCount yields a maximum of 3 seconds to perform a "normal" ping test.
A management application can delete an active remote ping request by setting the corresponding pingCtlRowStatus object to destroy(6).
The contents of the pingCtlTable is preserved across reIPLs (Initial Program Loads) of its agent according the values of each of the pingCtlStorageType objects.
The results of past ping probes can be stored in this table on a per pingCtlEntry basis. This table is initially indexed by pingCtlOwnerIndex and pingCtlTestName in order for the results of a probe to relate to the pingCtlEntry that caused it. The maximum number of entries stored in this table per pingCtlEntry is determined by the value of pingCtlMaxRows.
An implementation of this MIB will remove the oldest entry in the pingProbeHistoryTable to allow the addition of an new entry once the number of rows in the pingProbeHistoryTable reaches the value specified by pingCtlMaxRows. An implementation MUST start assigning pingProbeHistoryIndex values at 1 and wrap after exceeding the maximum possible value as defined by the limit of this object ('ffffffff'h).
White Standards Track [Page 7]
RFC 2925 Ping, Traceroute, and Lookup MIBs September 2000
The object traceRouteMaxConcurrentRequests enables control of the maximum number of concurrent active requests that an agent implementation supports. It is permissible for an agent either to limit the maximum upper range allowed for this object or to implement this object as read-only with an implementation limit expressed as its value.
A remote traceroute test is started by setting traceRouteCtlAdminStatus to enabled(1). The corresponding traceRouteCtlEntry MUST have been created and its traceRouteCtlRowStatus set to active(1) prior to starting the test. A single SNMP PDU can be used to create and start a remote traceroute test. Within the PDU, traceRouteCtlTargetAddress should be set to the target host's address (traceRouteCtlTargetAddressType will default to ipv4(1)), traceRouteCtlAdminStatus to enabled(1), and traceRouteCtlRowStatus to createAndGo(4).
The first index element, traceRouteCtlOwnerIndex, is of type SnmpAdminString, a textual convention that allows for use of the SNMPv3 View-Based Access Control Model (RFC 2575 [11], VACM) and allows a management application to identify its entries. The second index, traceRouteCtlTestName (also an SnmpAdminString), enables the same management application to have multiple requests outstanding.
Traceroute has a much longer theoretical maximum time for completion than ping. Basically 42 hours and 30 minutes (the product of traceRouteCtlTimeOut, traceRouteCtlProbesPerHop, and traceRouteCtlMaxTtl) plus some network transit time! Use of the defaults defined within an traceRouteCtlEntry yields a maximum of 4 minutes and 30 seconds for a default traceroute operation. Clearly
White Standards Track [Page 8]
RFC 2925 Ping, Traceroute, and Lookup MIBs September 2000
42 plus hours is too long to wait for a traceroute operation to complete.
The maximum TTL value in effect for traceroute determines how long the traceroute function will keep increasing the TTL value in the probe it transmits hoping to reach the target host. The function ends whenever the maximum TTL is exceeded or the target host is reached. The object traceRouteCtlMaxFailures was created in order to impose a throttle for how long traceroute continues to increase the TTL field in a probe without receiving any kind of response (timeouts). It is RECOMMENDED that agent implementations impose a time limit for how long it allows a traceroute operation to take relative to how the function is implemented. For example, an implementation that can't process multiple traceroute operations at the same time SHOULD impose a shorter maximum allowed time period.
A management application can delete an active remote traceroute request by setting the corresponding traceRouteCtlRowStatus object to destroy(6).
The contents of the traceRouteCtlTable is preserved across reIPLs (Initial Program Loads) of its agent according to the values of each of the traceRouteCtlStorageType objects.
An entry in the traceRouteResultsTable is created upon determining the results of a specific traceroute operation. Entries in this table relate back to the traceRouteCtlEntry that caused the corresponding traceroute operation to occur. The objects traceRouteResultsCurHopCount and traceRouteResultsCurProbeCount can be examined to determine how far the current remote traceroute operation has reached.
The results of past traceroute probes can be stored in this table on a per traceRouteCtlEntry basis. This table is initially indexed by traceRouteCtlOwnerIndex and traceRouteCtlTestName in order for the results of a probe to relate to the traceRouteCtlEntry that caused it. The number of entries stored in this table per traceRouteCtlEntry is determined by the value of traceRouteCtlMaxRows.
An implementation of this MIB will remove the oldest entry in the traceRouteProbeHistoryTable to allow the addition of an new entry once the number of rows in the traceRouteProbeHistoryTable reaches the value of traceRouteCtlMaxRows. An implementation MUST start
White Standards Track [Page 9]
RFC 2925 Ping, Traceroute, and Lookup MIBs September 2000
assigning traceRouteProbeHistoryIndex values at 1 and wrap after exceeding the maximum possible value as defined by the limit of this object ('ffffffff'h).
The current traceroute path can be stored in this table on a per traceRouteCtlEntry basis. This table is initially indexed by traceRouteCtlOwnerIndex and traceRouteCtlTestName in order for a traceroute path to relate to the traceRouteCtlEntry that caused it. A third index, traceRouteHopsHopIndex, enables keeping one traceRouteHopsEntry per traceroute hop. Creation of traceRouteHopsTable entries is enabled by setting the corresponding traceRouteCtlCreateHopsEntries object to true(1).
The DISMAN-NSLOOKUP-MIB consists of the following components:
o lookupMaxConcurrentRequests, and lookupPurgeTime
o lookupCtlTable
o lookupResultsTable
3.3.1 lookupMaxConcurrentRequests and lookupPurgeTime
The object lookupMaxConcurrentRequests enables control of the maximum number of concurrent active requests that an agent implementation is structured to support. It is permissible for an agent either to limit the maximum upper range allowed for this object or to implement this object as read-only with an implementation limit expressed as its value.
The object lookupPurgeTime provides a method for entries in the lookupCtlTable and lookupResultsTable to be automatically deleted after the corresponding operation completes.
A remote lookup operation is initiated by performing an SNMP SET request on lookupCtlRowStatus. A single SNMP PDU can be used to create and start a remote lookup operation. Within the PDU, lookupCtlTargetAddress should be set to the entity to be resolved (lookupCtlTargetAddressType will default to ipv4(1)) and lookupCtlRowStatus to createAndGo(4). The object lookupCtlOperStatus
White Standards Track [Page 10]
RFC 2925 Ping, Traceroute, and Lookup MIBs September 2000
can be examined to determine the state of an lookup operation. A management application can delete an active remote lookup request by setting the corresponding lookupCtlRowStatus object to destroy(6).
An lookupCtlEntry is initially indexed by lookupCtlOwnerIndex, which is of type SnmpAdminString, a textual convention that allows for use of the SNMPv3 View-Based Access Control Model (RFC 2575 [11], VACM) and also allows for a management application to identify its entries. The lookupCtlOwnerIndex portion of the index is then followed by lookupCtlOperationName. The lookupCtlOperationName index enables the same lookupCtlOwnerIndex entity to have multiple outstanding requests.
The value of lookupCtlTargetAddressType determines which lookup function to perform. Specification of dns(16) as the value of this index implies that the gethostbyname function should be performed to determine the numeric addresses associated with a symbolic name via lookupResultsTable entries. Use of a value of either ipv4(1) or ipv6(2) implies that the gethostbyaddr function should be performed to determine the symbolic name(s) associated with a numeric address at a remote host.
The lookupResultsTable is used to store the results of lookup operations. The lookupResultsTable is initially indexed by the same index elements that the lookupCtlTable contains (lookupCtlOwnerIndex and lookupCtlOperationName) but has a third index element, lookupResultsIndex (Unsigned32 textual convention), in order to associate multiple results with the same lookupCtlEntry.
Both the gethostbyname and gethostbyaddr functions typically return a pointer to a hostent structure after being called. The hostent structure is defined as:
struct hostent { char *h_name; /* official host name */ char *h_aliases[]; /* list of other aliases */ int h_addrtype; /* host address type */ int h_length; /* length of host address */ char **h_addr_list; /* list of address for host */ };
The hostent structure is listed here in order to address the fact that a remote host can be multi-homed and can have multiple symbolic (DNS) names. It is not intended to imply that implementations of the DISMAN-LOOKUP-MIB are limited to systems where the hostent structure is supported.
White Standards Track [Page 11]
RFC 2925 Ping, Traceroute, and Lookup MIBs September 2000
The gethostbyaddr function is called with a host address as its parameter and is used primarily to determine a symbolic name to associate with the host address. Entries in the lookupResultsTable MUST be made for each host name returned. The official host name MUST be assigned a lookupResultsIndex of 1.
The gethostbyname function is called with a symbolic host name and is used primarily to retrieve a host address. Normally, the first h_addr_list host address is considered to be the primary address and as such is associated with the symbolic name passed on the call.
Entries MUST be stored in the lookupResultsTable in the order that they are retrieved. Values assigned to lookupResultsIndex MUST start at 1 and increase in order.
An implementation SHOULD NOT retain SNMP-created entries in the lookupTable across reIPLs (Initial Program Loads) of its agent, since management applications need to see consistent behavior with respect to the persistence of the table entries that they create.
IMPORTS MODULE-IDENTITY, OBJECT-TYPE, Integer32, Unsigned32, mib-2, NOTIFICATION-TYPE, OBJECT-IDENTITY FROM SNMPv2-SMI -- RFC2578 TEXTUAL-CONVENTION, RowStatus, StorageType, DateAndTime, TruthValue FROM SNMPv2-TC -- RFC2579 MODULE-COMPLIANCE, OBJECT-GROUP, NOTIFICATION-GROUP FROM SNMPv2-CONF -- RFC2580 InterfaceIndexOrZero -- RFC2863 FROM IF-MIB SnmpAdminString FROM SNMP-FRAMEWORK-MIB -- RFC2571 InetAddressType, InetAddress FROM INET-ADDRESS-MIB; -- RFC2851
pingMIB MODULE-IDENTITY LAST-UPDATED "200009210000Z" -- 21 September 2000 ORGANIZATION "IETF Distributed Management Working Group" CONTACT-INFO
White Standards Track [Page 12]
RFC 2925 Ping, Traceroute, and Lookup MIBs September 2000
"Kenneth White
International Business Machines Corporation Network Computing Software Division Research Triangle Park, NC, USA
E-mail: wkenneth@us.ibm.com" DESCRIPTION "The Ping MIB (DISMAN-PING-MIB) provides the capability of controlling the use of the ping function at a remote host."
-- Revision history
REVISION "200009210000Z" -- 21 September 2000 DESCRIPTION "Initial version, published as RFC 2925."
::= { mib-2 80 }
-- Textual Conventions
OperationResponseStatus ::= TEXTUAL-CONVENTION STATUS current DESCRIPTION "Used to report the result of an operation:
responseReceived(1) - Operation completes successfully. unknown(2) - Operation failed due to unknown error. internalError(3) - An implementation detected an error in its own processing that caused an operation to fail. requestTimedOut(4) - Operation failed to receive a valid reply within the time limit imposed on it. unknownDestinationAddress(5) - Invalid destination address. noRouteToTarget(6) - Could not find a route to target. interfaceInactiveToTarget(7) - The interface to be used in sending a probe is inactive without an alternate route existing. arpFailure(8) - Unable to resolve a target address to a media specific address. maxConcurrentLimitReached(9) - The maximum number of concurrent active operations would have been exceeded if the corresponding operation was allowed. unableToResolveDnsName(10) - The DNS name specified was unable to be mapped to an IP address. invalidHostAddress(11) - The IP address for a host
White Standards Track [Page 13]
RFC 2925 Ping, Traceroute, and Lookup MIBs September 2000
has been determined to be invalid. Examples of this are broadcast or multicast addresses." SYNTAX INTEGER { responseReceived(1), unknown(2), internalError(3), requestTimedOut(4), unknownDestinationAddress(5), noRouteToTarget(6), interfaceInactiveToTarget(7), arpFailure(8), maxConcurrentLimitReached(9), unableToResolveDnsName(10), invalidHostAddress(11) }
pingIcmpEcho OBJECT-IDENTITY STATUS current DESCRIPTION "Indicates that an implementation is using the Internet Control Message Protocol (ICMP) 'ECHO' facility." ::= { pingImplementationTypeDomains 1 }
pingUdpEcho OBJECT-IDENTITY STATUS current DESCRIPTION "Indicates that an implementation is using the UDP echo port (7)." REFERENCE "RFC 862, 'Echo Protocol'." ::= { pingImplementationTypeDomains 2 }
pingSnmpQuery OBJECT-IDENTITY STATUS current DESCRIPTION "Indicates that an implementation is an SNMP query to calculate a round trip time."
White Standards Track [Page 14]
RFC 2925 Ping, Traceroute, and Lookup MIBs September 2000
::= { pingImplementationTypeDomains 3 }
pingTcpConnectionAttempt OBJECT-IDENTITY STATUS current DESCRIPTION "Indicates that an implementation is attempting to connect to a TCP port in order to calculate a round trip time." ::= { pingImplementationTypeDomains 4 }
-- Simple Object Definitions
pingMaxConcurrentRequests OBJECT-TYPE SYNTAX Unsigned32 UNITS "requests" MAX-ACCESS read-write STATUS current DESCRIPTION "The maximum number of concurrent active ping requests that are allowed within an agent implementation. A value of 0 for this object implies that there is no limit for the number of concurrent active requests in effect." DEFVAL { 10 } ::= { pingObjects 1 }
-- Ping Control Table
pingCtlTable OBJECT-TYPE SYNTAX SEQUENCE OF PingCtlEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "Defines the ping Control Table for providing, via SNMP, the capability of performing ping operations at a remote host. The results of these operations are stored in the pingResultsTable and the pingProbeHistoryTable." ::= { pingObjects 2 }
pingCtlEntry OBJECT-TYPE SYNTAX PingCtlEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "Defines an entry in the pingCtlTable. The first index element, pingCtlOwnerIndex, is of type SnmpAdminString, a textual convention that allows for use of the SNMPv3
White Standards Track [Page 15]
RFC 2925 Ping, Traceroute, and Lookup MIBs September 2000
View-Based Access Control Model (RFC 2575 [11], VACM) and allows an management application to identify its entries. The second index, pingCtlTestName (also an SnmpAdminString), enables the same management application to have multiple outstanding requests." INDEX { pingCtlOwnerIndex, pingCtlTestName } ::= { pingCtlTable 1 }
pingCtlOwnerIndex OBJECT-TYPE SYNTAX SnmpAdminString (SIZE(0..32)) MAX-ACCESS not-accessible STATUS current DESCRIPTION "To facilitate the provisioning of access control by a security administrator using the View-Based Access Control Model (RFC 2575, VACM) for tables in which multiple users may need to independently create or modify entries, the initial index is used as an 'owner
White Standards Track [Page 16]
RFC 2925 Ping, Traceroute, and Lookup MIBs September 2000
index'. Such an initial index has a syntax of SnmpAdminString, and can thus be trivially mapped to a securityName or groupName as defined in VACM, in accordance with a security policy.
When used in conjunction with such a security policy all entries in the table belonging to a particular user (or group) will have the same value for this initial index. For a given user's entries in a particular table, the object identifiers for the information in these entries will have the same subidentifiers (except for the 'column' subidentifier) up to the end of the encoded owner index. To configure VACM to permit access to this portion of the table, one would create vacmViewTreeFamilyTable entries with the value of vacmViewTreeFamilySubtree including the owner index portion, and vacmViewTreeFamilyMask 'wildcarding' the column subidentifier. More elaborate configurations are possible." ::= { pingCtlEntry 1 }
pingCtlTestName OBJECT-TYPE SYNTAX SnmpAdminString (SIZE(0..32)) MAX-ACCESS not-accessible STATUS current DESCRIPTION "The name of the ping test. This is locally unique, within the scope of an pingCtlOwnerIndex." ::= { pingCtlEntry 2 }
pingCtlTargetAddressType OBJECT-TYPE SYNTAX InetAddressType MAX-ACCESS read-create STATUS current DESCRIPTION "Specifies the type of host address to be used at a remote host for performing a ping operation." DEFVAL { unknown } ::= { pingCtlEntry 3 }
pingCtlTargetAddress OBJECT-TYPE SYNTAX InetAddress MAX-ACCESS read-create STATUS current DESCRIPTION "Specifies the host address to be used at a remote host for performing a ping operation. The host address type is determined by the object value of corresponding pingCtlTargetAddressType.
White Standards Track [Page 17]
RFC 2925 Ping, Traceroute, and Lookup MIBs September 2000
A value for this object MUST be set prior to transitioning its corresponding pingCtlEntry to active(1) via pingCtlRowStatus." DEFVAL { ''H } ::= { pingCtlEntry 4 }
pingCtlDataSize OBJECT-TYPE SYNTAX Unsigned32 (0..65507) UNITS "octets" MAX-ACCESS read-create STATUS current DESCRIPTION "Specifies the size of the data portion to be transmitted in a ping operation in octets. A ping request is usually an ICMP message encoded into an IP packet. An IP packet has a maximum size of 65535 octets. Subtracting the size of the ICMP or UDP header (both 8 octets) and the size of the IP header (20 octets) yields a maximum size of 65507 octets." DEFVAL { 0 } ::= { pingCtlEntry 5 }
pingCtlTimeOut OBJECT-TYPE SYNTAX Unsigned32 (1..60) UNITS "seconds" MAX-ACCESS read-create STATUS current DESCRIPTION "Specifies the time-out value, in seconds, for a remote ping operation." DEFVAL { 3 } ::= { pingCtlEntry 6 }
pingCtlProbeCount OBJECT-TYPE SYNTAX Unsigned32 (1..15) UNITS "probes" MAX-ACCESS read-create STATUS current DESCRIPTION "Specifies the number of times to perform a ping operation at a remote host." DEFVAL { 1 } ::= { pingCtlEntry 7 }
pingCtlAdminStatus OBJECT-TYPE SYNTAX INTEGER { enabled(1), -- test should be started
White Standards Track [Page 18]
RFC 2925 Ping, Traceroute, and Lookup MIBs September 2000
disabled(2) -- test should be stopped } MAX-ACCESS read-create STATUS current DESCRIPTION "Reflects the desired state that a pingCtlEntry should be in:
enabled(1) - Attempt to activate the test as defined by this pingCtlEntry. disabled(2) - Deactivate the test as defined by this pingCtlEntry.
Refer to the corresponding pingResultsOperStatus to determine the operational state of the test defined by this entry." DEFVAL { disabled } ::= { pingCtlEntry 8 }
pingCtlDataFill OBJECT-TYPE SYNTAX OCTET STRING (SIZE(0..1024)) MAX-ACCESS read-create STATUS current DESCRIPTION "The content of this object is used together with the corresponding pingCtlDataSize value to determine how to fill the data portion of a probe packet. The option of selecting a data fill pattern can be useful when links are compressed or have data pattern sensitivities. The contents of pingCtlDataFill should be repeated in a ping packet when the size of the data portion of the ping packet is greater than the size of pingCtlDataFill." DEFVAL { '00'H } ::= { pingCtlEntry 9 }
pingCtlFrequency OBJECT-TYPE SYNTAX Unsigned32 UNITS "seconds" MAX-ACCESS read-create STATUS current DESCRIPTION "The number of seconds to wait before repeating a ping test as defined by the value of the various objects in the corresponding row.
A single ping test consists of a series of ping probes. The number of probes is determined by the value of the corresponding pingCtlProbeCount object. After a single
White Standards Track [Page 19]
RFC 2925 Ping, Traceroute, and Lookup MIBs September 2000
test completes the number of seconds as defined by the value of pingCtlFrequency MUST elapse before the next ping test is started.
A value of 0 for this object implies that the test as defined by the corresponding entry will not be repeated." DEFVAL { 0 } ::= { pingCtlEntry 10 }
pingCtlMaxRows OBJECT-TYPE SYNTAX Unsigned32 UNITS "rows" MAX-ACCESS read-create STATUS current DESCRIPTION "The maximum number of entries allowed in the pingProbeHistoryTable. An implementation of this MIB will remove the oldest entry in the pingProbeHistoryTable to allow the addition of an new entry once the number of rows in the pingProbeHistoryTable reaches this value.
Old entries are not removed when a new test is started. Entries are added to the pingProbeHistoryTable until pingCtlMaxRows is reached before entries begin to be removed.
A value of 0 for this object disables creation of pingProbeHistoryTable entries." DEFVAL { 50 } ::= { pingCtlEntry 11 }
pingCtlStorageType OBJECT-TYPE SYNTAX StorageType MAX-ACCESS read-create STATUS current DESCRIPTION "The storage type for this conceptual row. Conceptual rows having the value 'permanent' need not allow write-access to any columnar objects in the row." DEFVAL { nonVolatile } ::= { pingCtlEntry 12 }
RFC 2925 Ping, Traceroute, and Lookup MIBs September 2000
testCompletion(2) } MAX-ACCESS read-create STATUS current DESCRIPTION "The value of this object determines when and if to generate a notification for this entry:
probeFailure(0) - Generate a pingProbeFailed notification subject to the value of pingCtlTrapProbeFailureFilter. The object pingCtlTrapProbeFailureFilter can be used to specify the number of successive probe failures that are required before a pingProbeFailed notification can be generated. testFailure(1) - Generate a pingTestFailed notification. In this instance the object pingCtlTrapTestFailureFilter can be used to determine the number of probe failures that signal when a test fails. testCompletion(2) - Generate a pingTestCompleted notification.
The value of this object defaults to zero, indicating that none of the above options have been selected." ::= { pingCtlEntry 13 }
pingCtlTrapProbeFailureFilter OBJECT-TYPE SYNTAX Unsigned32 (0..15) MAX-ACCESS read-create STATUS current DESCRIPTION "The value of this object is used to determine when to generate a pingProbeFailed NOTIFICATION.
Setting pingCtlTrapGeneration to probeFailure(0) implies that a pingProbeFailed NOTIFICATION is generated only when the number of successive probe failures as indicated by the value of pingCtlTrapPrbefailureFilter fail within a given ping test." DEFVAL { 1 } ::= { pingCtlEntry 14 }
pingCtlTrapTestFailureFilter OBJECT-TYPE SYNTAX Unsigned32 (0..15) MAX-ACCESS read-create STATUS current
White Standards Track [Page 21]
RFC 2925 Ping, Traceroute, and Lookup MIBs September 2000
DESCRIPTION "The value of this object is used to determine when to generate a pingTestFailed NOTIFICATION.
Setting pingCtlTrapGeneration to testFailure(1) implies that a pingTestFailed NOTIFICATION is generated only when the number of ping failures within a test exceed the value of pingCtlTrapTestFailureFilter." DEFVAL { 1 } ::= { pingCtlEntry 15 }
pingCtlType OBJECT-TYPE SYNTAX OBJECT IDENTIFIER MAX-ACCESS read-create STATUS current DESCRIPTION "The value of this object is used to either report or select the implementation method to be used for calculating a ping response time. The value of this object MAY be selected from pingImplementationTypeDomains.
Additional implementation types SHOULD be allocated as required by implementers of the DISMAN-PING-MIB under their enterprise specific registration point and not beneath pingImplementationTypeDomains." DEFVAL { pingIcmpEcho } ::= { pingCtlEntry 16 }
pingCtlDescr OBJECT-TYPE SYNTAX SnmpAdminString MAX-ACCESS read-create STATUS current DESCRIPTION "The purpose of this object is to provide a descriptive name of the remote ping test." DEFVAL { '00'H } ::= { pingCtlEntry 17 }
pingCtlSourceAddressType OBJECT-TYPE SYNTAX InetAddressType MAX-ACCESS read-create STATUS current DESCRIPTION "Specifies the type of the source address, pingCtlSourceAddress, to be used at a remote host when performing a ping operation." DEFVAL { ipv4 }
White Standards Track [Page 22]
RFC 2925 Ping, Traceroute, and Lookup MIBs September 2000
::= { pingCtlEntry 18 }
pingCtlSourceAddress OBJECT-TYPE SYNTAX InetAddress MAX-ACCESS read-create STATUS current DESCRIPTION "Use the specified IP address (which must be given in numeric form, not as a hostname) as the source address in outgoing probe packets. On hosts with more than one IP address, this option can be used to force the source address to be something other than the primary IP address of the interface the probe packet is sent on. If the IP address is not one of this machine's interface addresses, an error is returned and nothing is sent. A zero length octet string value for this object disables source address specification.
The address type (InetAddressType) that relates to this object is specified by the corresponding value of pingCtlSourceAddressType." DEFVAL { ''H } ::= { pingCtlEntry 19 }
pingCtlIfIndex OBJECT-TYPE SYNTAX InterfaceIndexOrZero MAX-ACCESS read-create STATUS current DESCRIPTION "Setting this object to an interface's ifIndex prior to starting a remote ping operation directs the ping probes to be transmitted over the specified interface. A value of zero for this object means that this option is not enabled." DEFVAL { 0 } ::= { pingCtlEntry 20 }
pingCtlByPassRouteTable OBJECT-TYPE SYNTAX TruthValue MAX-ACCESS read-create STATUS current DESCRIPTION "The purpose of this object is to optionally enable bypassing the route table. If enabled, the remote host will bypass the normal routing tables and send directly to a host on an attached network. If the host is not on a directly-attached network, an
White Standards Track [Page 23]
RFC 2925 Ping, Traceroute, and Lookup MIBs September 2000
error is returned. This option can be used to perform the ping operation to a local host through an interface that has no route defined (e.g., after the interface was dropped by routed)." DEFVAL { false } ::= { pingCtlEntry 21 }
pingCtlDSField OBJECT-TYPE SYNTAX Unsigned32 (0..255) MAX-ACCESS read-create STATUS current DESCRIPTION "Specifies the value to store in the Differentiated Services (DS) Field in the IP packet used to encapsulate the ping probe. The DS Field is defined as the Type of Service (TOS) octet in a IPv4 header or as the Traffic Class octet in a IPv6 header.
The value of this object must be a decimal integer in the range from 0 to 255. This option can be used to determine what effect an explicit DS Field setting has on a ping response. Not all values are legal or meaningful. A value of 0 means that the function represented by this option is not supported. DS Field usage is often not supported by IP implementations and not all values are supported. Refer to RFC 2474 for guidance on usage of this field." REFERENCE "Refer to RFC 2474 for the definition of the Differentiated Services Field and to RFC 1812 Section 5.3.2 for Type of Service (TOS)." DEFVAL { 0 } ::= { pingCtlEntry 22 }
pingCtlRowStatus OBJECT-TYPE SYNTAX RowStatus MAX-ACCESS read-create STATUS current DESCRIPTION "This object allows entries to be created and deleted in the pingCtlTable. Deletion of an entry in this table results in all corresponding (same pingCtlOwnerIndex and pingCtlTestName index values) pingResultsTable and pingProbeHistoryTable entries being deleted.
A value MUST be specified for pingCtlTargetAddress prior to a transition to active(1) state being
White Standards Track [Page 24]
RFC 2925 Ping, Traceroute, and Lookup MIBs September 2000
accepted.
Activation of a remote ping operation is controlled via pingCtlAdminStatus and not by changing this object's value to active(1).
Transitions in and out of active(1) state are not allowed while an entry's pingResultsOperStatus is active(1) with the exception that deletion of an entry in this table by setting its RowStatus object to destroy(6) will stop an active ping operation.
The operational state of a ping operation can be determined by examination of its pingResultsOperStatus object." REFERENCE "See definition of RowStatus in RFC 2579, 'Textual Conventions for SMIv2.'" ::= { pingCtlEntry 23 }
-- Ping Results Table
pingResultsTable OBJECT-TYPE SYNTAX SEQUENCE OF PingResultsEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "Defines the Ping Results Table for providing the capability of performing ping operations at a remote host. The results of these operations are stored in the pingResultsTable and the pingPastProbeTable.
An entry is added to the pingResultsTable when an pingCtlEntry is started by successful transition of its pingCtlAdminStatus object to enabled(1). An entry is removed from the pingResultsTable when its corresponding pingCtlEntry is deleted." ::= { pingObjects 3 }
pingResultsEntry OBJECT-TYPE SYNTAX PingResultsEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "Defines an entry in the pingResultsTable. The pingResultsTable has the same indexing as the pingCtlTable in order for a pingResultsEntry to
White Standards Track [Page 25]
RFC 2925 Ping, Traceroute, and Lookup MIBs September 2000
correspond to the pingCtlEntry that caused it to be created." INDEX { pingCtlOwnerIndex, pingCtlTestName } ::= { pingResultsTable 1 }
pingResultsOperStatus OBJECT-TYPE SYNTAX INTEGER { enabled(1), -- test is in progress disabled(2) -- test has stopped } MAX-ACCESS read-only STATUS current DESCRIPTION "Reflects the operational state of a pingCtlEntry: enabled(1) - Test is active. disabled(2) - Test has stopped." ::= { pingResultsEntry 1 }
pingResultsIpTargetAddressType OBJECT-TYPE SYNTAX InetAddressType MAX-ACCESS read-only STATUS current DESCRIPTION "This objects indicates the type of address stored in the corresponding pingResultsIpTargetAddress object." DEFVAL { unknown } ::= { pingResultsEntry 2 }
RFC 2925 Ping, Traceroute, and Lookup MIBs September 2000
MAX-ACCESS read-only STATUS current DESCRIPTION "This objects reports the IP address associated with a pingCtlTargetAddress value when the destination address is specified as a DNS name. The value of this object should be a zero length octet string when a DNS name is not specified or when a specified DNS name fails to resolve." DEFVAL { ''H } ::= { pingResultsEntry 3 }
pingResultsMinRtt OBJECT-TYPE SYNTAX Unsigned32 UNITS "milliseconds" MAX-ACCESS read-only STATUS current DESCRIPTION "The minimum ping round-trip-time (RTT) received. A value of 0 for this object implies that no RTT has been received." ::= { pingResultsEntry 4 }
pingResultsMaxRtt OBJECT-TYPE SYNTAX Unsigned32 UNITS "milliseconds" MAX-ACCESS read-only STATUS current DESCRIPTION "The maximum ping round-trip-time (RTT) received. A value of 0 for this object implies that no RTT has been received." ::= { pingResultsEntry 5 }
pingResultsAverageRtt OBJECT-TYPE SYNTAX Unsigned32 UNITS "milliseconds" MAX-ACCESS read-only STATUS current DESCRIPTION "The current average ping round-trip-time (RTT)." ::= { pingResultsEntry 6 }
pingResultsProbeResponses OBJECT-TYPE SYNTAX Unsigned32 UNITS "responses" MAX-ACCESS read-only STATUS current DESCRIPTION "Number of responses received for the corresponding
White Standards Track [Page 27]
RFC 2925 Ping, Traceroute, and Lookup MIBs September 2000
pingCtlEntry and pingResultsEntry. The value of this object MUST be reported as 0 when no probe responses have been received." ::= { pingResultsEntry 7 }
pingResultsSentProbes OBJECT-TYPE SYNTAX Unsigned32 UNITS "probes" MAX-ACCESS read-only STATUS current DESCRIPTION "The value of this object reflects the number of probes sent for the corresponding pingCtlEntry and pingResultsEntry. The value of this object MUST be reported as 0 when no probes have been sent." ::= { pingResultsEntry 8 }
pingResultsRttSumOfSquares OBJECT-TYPE SYNTAX Unsigned32 UNITS "milliseconds" MAX-ACCESS read-only STATUS current DESCRIPTION "This object contains the sum of the squares for all ping responses received. Its purpose is to enable standard deviation calculation. The value of this object MUST be reported as 0 when no ping responses have been received." ::= { pingResultsEntry 9 }
pingResultsLastGoodProbe OBJECT-TYPE SYNTAX DateAndTime MAX-ACCESS read-only STATUS current DESCRIPTION "Date and time when the last response was received for a probe." ::= { pingResultsEntry 10 }
-- Ping Probe History Table
pingProbeHistoryTable OBJECT-TYPE SYNTAX SEQUENCE OF PingProbeHistoryEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "Defines a table for storing the results of a ping operation. Entries in this table are limited by
White Standards Track [Page 28]
RFC 2925 Ping, Traceroute, and Lookup MIBs September 2000
the value of the corresponding pingCtlMaxRows object.
An entry in this table is created when the result of a ping probe is determined. The initial 2 instance identifier index values identify the pingCtlEntry that a probe result (pingProbeHistoryEntry) belongs to. An entry is removed from this table when its corresponding pingCtlEntry is deleted.
An implementation of this MIB will remove the oldest entry in the pingProbeHistoryTable to allow the addition of an new entry once the number of rows in the pingProbeHistoryTable reaches the value specified by pingCtlMaxRows." ::= { pingObjects 4 }
pingProbeHistoryEntry OBJECT-TYPE SYNTAX PingProbeHistoryEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "Defines an entry in the pingProbeHistoryTable. The first two index elements identify the pingCtlEntry that a pingProbeHistoryEntry belongs to. The third index element selects a single probe result." INDEX { pingCtlOwnerIndex, pingCtlTestName, pingProbeHistoryIndex } ::= { pingProbeHistoryTable 1 }
pingProbeHistoryIndex OBJECT-TYPE SYNTAX Unsigned32 (1..'ffffffff'h) MAX-ACCESS not-accessible STATUS current DESCRIPTION
White Standards Track [Page 29]
RFC 2925 Ping, Traceroute, and Lookup MIBs September 2000
"An entry in this table is created when the result of a ping probe is determined. The initial 2 instance identifier index values identify the pingCtlEntry that a probe result (pingProbeHistoryEntry) belongs to.
An implementation MUST start assigning pingProbeHistoryIndex values at 1 and wrap after exceeding the maximum possible value as defined by the limit of this object ('ffffffff'h)." ::= { pingProbeHistoryEntry 1 }
pingProbeHistoryResponse OBJECT-TYPE SYNTAX Unsigned32 UNITS "milliseconds" MAX-ACCESS read-only STATUS current DESCRIPTION "The amount of time measured in milliseconds from when a probe was sent to when its response was received or when it timed out. The value of this object is reported as 0 when it is not possible to transmit a probe." ::= { pingProbeHistoryEntry 2 }
pingProbeHistoryStatus OBJECT-TYPE SYNTAX OperationResponseStatus MAX-ACCESS read-only STATUS current DESCRIPTION "The result of a particular probe done by a remote host." ::= { pingProbeHistoryEntry 3 }
pingProbeHistoryLastRC OBJECT-TYPE SYNTAX Integer32 MAX-ACCESS read-only STATUS current DESCRIPTION "The last implementation method specific reply code received. If the ICMP Echo capability is being used then a successful probe ends when an ICMP response is received that contains the code ICMP_ECHOREPLY(0). The ICMP responses are defined normally in the ip_icmp include file." ::= { pingProbeHistoryEntry 4 }
pingProbeHistoryTime OBJECT-TYPE SYNTAX DateAndTime MAX-ACCESS read-only STATUS current
White Standards Track [Page 30]
RFC 2925 Ping, Traceroute, and Lookup MIBs September 2000
DESCRIPTION "Timestamp for when this probe result was determined." ::= { pingProbeHistoryEntry 5 }
-- Notification Definition section
pingProbeFailed NOTIFICATION-TYPE OBJECTS { pingCtlTargetAddressType, pingCtlTargetAddress, pingResultsOperStatus, pingResultsIpTargetAddressType, pingResultsIpTargetAddress, pingResultsMinRtt, pingResultsMaxRtt, pingResultsAverageRtt, pingResultsProbeResponses, pingResultsSentProbes, pingResultsRttSumOfSquares, pingResultsLastGoodProbe } STATUS current DESCRIPTION "Generated when a probe failure is detected when the corresponding pingCtlTrapGeneration object is set to probeFailure(0) subject to the value of pingCtlTrapProbeFailureFilter. The object pingCtlTrapProbeFailureFilter can be used to specify the number of successive probe failures that are required before this notification can be generated." ::= { pingNotifications 1 }
RFC 2925 Ping, Traceroute, and Lookup MIBs September 2000
STATUS current DESCRIPTION "Generated when a ping test is determined to have failed when the corresponding pingCtlTrapGeneration object is set to testFailure(1). In this instance pingCtlTrapTestFailureFilter should specify the number of probes in a test required to have failed in order to consider the test as failed." ::= { pingNotifications 2 }
pingTestCompleted NOTIFICATION-TYPE OBJECTS { pingCtlTargetAddressType, pingCtlTargetAddress, pingResultsOperStatus, pingResultsIpTargetAddressType, pingResultsIpTargetAddress, pingResultsMinRtt, pingResultsMaxRtt, pingResultsAverageRtt, pingResultsProbeResponses, pingResultsSentProbes, pingResultsRttSumOfSquares, pingResultsLastGoodProbe } STATUS current DESCRIPTION "Generated at the completion of a ping test when the corresponding pingCtlTrapGeneration object is set to testCompletion(4)." ::= { pingNotifications 3 }
-- Conformance information -- Compliance statements
pingCompliance MODULE-COMPLIANCE STATUS current DESCRIPTION "The compliance statement for the DISMAN-PING-MIB." MODULE -- this module MANDATORY-GROUPS { pingGroup, pingNotificationsGroup
White Standards Track [Page 32]
RFC 2925 Ping, Traceroute, and Lookup MIBs September 2000
} GROUP pingTimeStampGroup DESCRIPTION "This group is mandatory for implementations that have access to a system clock and are capable of setting the values for DateAndTime objects. It is RECOMMENDED that when this group is not supported that the values for the objects in this group be reported as '0000000000000000'H."
OBJECT pingMaxConcurrentRequests MIN-ACCESS read-only DESCRIPTION "The agent is not required to support set operations to this object."
OBJECT pingCtlStorageType MIN-ACCESS read-only DESCRIPTION "Write access is not required. It is also allowed for implementations to support only the volatile StorageType enumeration."
OBJECT pingCtlType MIN-ACCESS read-only DESCRIPTION "Write access is not required. In addition, the only value that MUST be supported by an implementation is pingIcmpEcho."
OBJECT pingCtlByPassRouteTable MIN-ACCESS read-only DESCRIPTION "This object is not required by implementations that are not capable of its implementation. The function represented by this object is implementable if the setsockopt SOL_SOCKET SO_DONTROUTE option is supported."
OBJECT pingCtlSourceAddressType SYNTAX InetAddressType { unknown(0), ipv4(1), ipv6(2) } MIN-ACCESS read-only DESCRIPTION "This object is not required by implementations that are not capable of binding the send socket with a source address. An implementation is only required to support IPv4 and IPv6 addresses."
White Standards Track [Page 33]
RFC 2925 Ping, Traceroute, and Lookup MIBs September 2000
OBJECT pingCtlSourceAddress SYNTAX InetAddress (SIZE(0|4|16)) MIN-ACCESS read-only DESCRIPTION "This object is not required by implementations that are not capable of binding the send socket with a source address. An implementation is only required to support IPv4 and globally unique IPv6 addresses."
OBJECT pingCtlIfIndex MIN-ACCESS read-only DESCRIPTION "Write access is not required. When write access is not supported return a 0 as the value of this object. A value of 0 means that the function represented by this option is not supported."
OBJECT pingCtlDSField MIN-ACCESS read-only DESCRIPTION "Write access is not required. When write access is not supported return a 0 as the value of this object. A value of 0 means that the function represented by this option is not supported."
OBJECT pingResultsIpTargetAddressType SYNTAX InetAddressType { unknown(0), ipv4(1), ipv6(2) } DESCRIPTION "An implementation is only required to support IPv4 and IPv6 addresses."
OBJECT pingResultsIpTargetAddress SYNTAX InetAddress (SIZE(0|4|16)) DESCRIPTION "An implementation is only required to support IPv4 and globally unique IPv6 addresses."
RFC 2925 Ping, Traceroute, and Lookup MIBs September 2000
pingCtlProbeCount, pingCtlAdminStatus, pingCtlDataFill, pingCtlFrequency, pingCtlMaxRows, pingCtlStorageType, pingCtlTrapGeneration, pingCtlTrapProbeFailureFilter, pingCtlTrapTestFailureFilter, pingCtlType, pingCtlDescr, pingCtlByPassRouteTable, pingCtlSourceAddressType, pingCtlSourceAddress, pingCtlIfIndex, pingCtlDSField, pingCtlRowStatus, pingResultsOperStatus, pingResultsIpTargetAddressType, pingResultsIpTargetAddress, pingResultsMinRtt, pingResultsMaxRtt, pingResultsAverageRtt, pingResultsProbeResponses, pingResultsSentProbes, pingResultsRttSumOfSquares, pingProbeHistoryResponse, pingProbeHistoryStatus, pingProbeHistoryLastRC } STATUS current DESCRIPTION "The group of objects that comprise the remote ping capability." ::= { pingGroups 1 }
pingTimeStampGroup OBJECT-GROUP OBJECTS { pingResultsLastGoodProbe, pingProbeHistoryTime } STATUS current DESCRIPTION "The group of DateAndTime objects." ::= { pingGroups 2 }
RFC 2925 Ping, Traceroute, and Lookup MIBs September 2000
pingProbeFailed, pingTestFailed, pingTestCompleted } STATUS current DESCRIPTION "The notification which are required to be supported by implementations of this MIB." ::= { pingGroups 3 }
traceRouteUsingUdpProbes OBJECT-IDENTITY STATUS current DESCRIPTION "Indicates that an implementation is using UDP probes to perform the traceroute operation." ::= { traceRouteImplementationTypeDomains 1 }
-- Simple Object Definitions
traceRouteMaxConcurrentRequests OBJECT-TYPE SYNTAX Unsigned32 UNITS "requests" MAX-ACCESS read-write STATUS current DESCRIPTION "The maximum number of concurrent active traceroute requests that are allowed within an agent implementation. A value of 0 for this object implies that there is no limit for the number of concurrent active requests in effect." DEFVAL { 10 } ::= { traceRouteObjects 1 }
White Standards Track [Page 37]
RFC 2925 Ping, Traceroute, and Lookup MIBs September 2000
-- Traceroute Control Table
traceRouteCtlTable OBJECT-TYPE SYNTAX SEQUENCE OF TraceRouteCtlEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "Defines the Remote Operations Traceroute Control Table for providing the capability of invoking traceroute from a remote host. The results of traceroute operations can be stored in the traceRouteResultsTable, traceRouteProbeHistoryTable, and the traceRouteHopsTable." ::= { traceRouteObjects 2 }
traceRouteCtlEntry OBJECT-TYPE SYNTAX TraceRouteCtlEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "Defines an entry in the traceRouteCtlTable. The first index element, traceRouteCtlOwnerIndex, is of type SnmpAdminString, a textual convention that allows for use of the SNMPv3 View-Based Access Control Model (RFC 2575 [11], VACM) and allows an management application to identify its entries. The second index, traceRouteCtlTestName (also an SnmpAdminString), enables the same management application to have multiple requests outstanding." INDEX { traceRouteCtlOwnerIndex, traceRouteCtlTestName } ::= { traceRouteCtlTable 1 }
traceRouteCtlOwnerIndex OBJECT-TYPE SYNTAX SnmpAdminString (SIZE(0..32)) MAX-ACCESS not-accessible STATUS current DESCRIPTION "To facilitate the provisioning of access control by a security administrator using the View-Based Access Control Model (RFC 2575, VACM) for tables in which multiple users may need to independently create or modify entries, the initial index is used as an 'owner index'. Such an initial index has a syntax of SnmpAdminString, and can thus be trivially mapped to a securityName or groupName as defined in VACM, in accordance with a security policy.
When used in conjunction with such a security policy all entries in the table belonging to a particular user (or group) will have the same value for this initial index. For a given user's entries in a particular table, the object identifiers for the information in these entries will have the same subidentifiers (except for the 'column' subidentifier) up to the end of the encoded owner index. To configure VACM to permit access to this portion of the table, one would create vacmViewTreeFamilyTable entries with the value of vacmViewTreeFamilySubtree including the owner index portion, and vacmViewTreeFamilyMask 'wildcarding' the column subidentifier. More elaborate configurations are possible." ::= { traceRouteCtlEntry 1 }
White Standards Track [Page 39]
RFC 2925 Ping, Traceroute, and Lookup MIBs September 2000
traceRouteCtlTestName OBJECT-TYPE SYNTAX SnmpAdminString (SIZE(0..32)) MAX-ACCESS not-accessible STATUS current DESCRIPTION "The name of a traceroute test. This is locally unique, within the scope of an traceRouteCtlOwnerIndex." ::= { traceRouteCtlEntry 2 }
traceRouteCtlTargetAddressType OBJECT-TYPE SYNTAX InetAddressType MAX-ACCESS read-create STATUS current DESCRIPTION "Specifies the type of host address to be used on the traceroute request at the remote host." DEFVAL { ipv4 } ::= { traceRouteCtlEntry 3 }
traceRouteCtlTargetAddress OBJECT-TYPE SYNTAX InetAddress MAX-ACCESS read-create STATUS current DESCRIPTION "Specifies the host address used on the traceroute request at the remote host. The host address type can be determined by the examining the value of the corresponding traceRouteCtlTargetAddressType index element.
A value for this object MUST be set prior to transitioning its corresponding traceRouteCtlEntry to active(1) via traceRouteCtlRowStatus." ::= { traceRouteCtlEntry 4 }
traceRouteCtlByPassRouteTable OBJECT-TYPE SYNTAX TruthValue MAX-ACCESS read-create STATUS current DESCRIPTION "The purpose of this object is to optionally enable bypassing the route table. If enabled, the remote host will bypass the normal routing tables and send directly to a host on an attached network. If the host is not on a directly-attached network, an error is returned. This option can be used to perform the traceroute operation to a local host through an interface that has no route defined (e.g., after the
White Standards Track [Page 40]
RFC 2925 Ping, Traceroute, and Lookup MIBs September 2000
interface was dropped by routed)." DEFVAL { false } ::= { traceRouteCtlEntry 5 }
traceRouteCtlDataSize OBJECT-TYPE SYNTAX Unsigned32 (0..65507) UNITS "octets" MAX-ACCESS read-create STATUS current DESCRIPTION "Specifies the size of the data portion of a traceroute request in octets. A traceroute request is essentially transmitted by encoding a UDP datagram into a IP packet. So subtracting the size of a UDP header (8 octets) and the size of a IP header (20 octets) yields a maximum of 65507 octets." DEFVAL { 0 } ::= { traceRouteCtlEntry 6 }
traceRouteCtlTimeOut OBJECT-TYPE SYNTAX Unsigned32 (1..60) UNITS "seconds" MAX-ACCESS read-create STATUS current DESCRIPTION "Specifies the time-out value, in seconds, for a traceroute request." DEFVAL { 3 } ::= { traceRouteCtlEntry 7 }
traceRouteCtlProbesPerHop OBJECT-TYPE SYNTAX Unsigned32 (1..10) UNITS "probes" MAX-ACCESS read-create STATUS current DESCRIPTION "Specifies the number of times to reissue a traceroute request with the same time-to-live (TTL) value." DEFVAL { 3 } ::= { traceRouteCtlEntry 8 }
traceRouteCtlPort OBJECT-TYPE SYNTAX Unsigned32 (1..65535) UNITS "UDP Port" MAX-ACCESS read-create STATUS current DESCRIPTION "Specifies the UDP port to send the traceroute
White Standards Track [Page 41]
RFC 2925 Ping, Traceroute, and Lookup MIBs September 2000
request to. Need to specify a port that is not in use at the destination (target) host. The default value for this object is the IANA assigned port, 33434, for the traceroute function." DEFVAL { 33434 } ::= { traceRouteCtlEntry 9 }
traceRouteCtlMaxTtl OBJECT-TYPE SYNTAX Unsigned32 (1..255) UNITS "time-to-live value" MAX-ACCESS read-create STATUS current DESCRIPTION "Specifies the maximum time-to-live value." DEFVAL { 30 } ::= { traceRouteCtlEntry 10 }
traceRouteCtlDSField OBJECT-TYPE SYNTAX Unsigned32 (0..255) MAX-ACCESS read-create STATUS current DESCRIPTION "Specifies the value to store in the Differentiated Services (DS) Field in the IP packet used to encapsulate the traceroute probe. The DS Field is defined as the Type of Service (TOS) octet in a IPv4 header or as the Traffic Class octet in a IPv6 header.
The value of this object must be a decimal integer in the range from 0 to 255. This option can be used to determine what effect an explicit DS Field setting has on a traceroute response. Not all values are legal or meaningful. DS Field usage is often not supported by IP implementations. A value of 0 means that the function represented by this option is not supported. Useful TOS octet values are probably '16' (low delay) and '8' ( high throughput)." REFERENCE "Refer to RFC 2474 for the definition of the Differentiated Services Field and to RFC 1812 Section 5.3.2 for Type of Service (TOS)." DEFVAL { 0 } ::= { traceRouteCtlEntry 11 }
traceRouteCtlSourceAddressType OBJECT-TYPE SYNTAX InetAddressType MAX-ACCESS read-create STATUS current
White Standards Track [Page 42]
RFC 2925 Ping, Traceroute, and Lookup MIBs September 2000
DESCRIPTION "Specifies the type of the source address, traceRouteCtlSourceAddress, to be used at a remote host when performing a traceroute operation." DEFVAL { unknown } ::= { traceRouteCtlEntry 12 }
traceRouteCtlSourceAddress OBJECT-TYPE SYNTAX InetAddress MAX-ACCESS read-create STATUS current DESCRIPTION "Use the specified IP address (which must be given as an IP number, not a hostname) as the source address in outgoing probe packets. On hosts with more than one IP address, this option can be used to force the source address to be something other than the primary IP address of the interface the probe packet is sent on. If the IP address is not one of this machine's interface addresses, an error is returned and nothing is sent. A zero length octet string value for this object disables source address specification.
The address type (InetAddressType) that relates to this object is specified by the corresponding value of traceRouteCtlSourceAddressType." DEFVAL { ''H } ::= { traceRouteCtlEntry 13 }
traceRouteCtlIfIndex OBJECT-TYPE SYNTAX InterfaceIndexOrZero MAX-ACCESS read-create STATUS current DESCRIPTION "Setting this object to an interface's ifIndex prior to starting a remote traceroute operation directs the traceroute probes to be transmitted over the specified interface. A value of zero for this object implies that this option is not enabled." DEFVAL { 0 } ::= { traceRouteCtlEntry 14 }
traceRouteCtlMiscOptions OBJECT-TYPE SYNTAX SnmpAdminString MAX-ACCESS read-create STATUS current DESCRIPTION
White Standards Track [Page 43]
RFC 2925 Ping, Traceroute, and Lookup MIBs September 2000
"Enables an application to specify implementation dependent options." DEFVAL { ''H } ::= { traceRouteCtlEntry 15 }
traceRouteCtlMaxFailures OBJECT-TYPE SYNTAX Unsigned32 (0..255) UNITS "timeouts" MAX-ACCESS read-create STATUS current DESCRIPTION "The value of this object indicates the maximum number of consecutive timeouts allowed before terminating a remote traceroute request. A value of either 255 (maximum hop count/possible TTL value) or a 0 indicates that the function of terminating a remote traceroute request when a specific number of successive timeouts are detected is disabled." DEFVAL { 5 } ::= { traceRouteCtlEntry 16 }
traceRouteCtlDontFragment OBJECT-TYPE SYNTAX TruthValue MAX-ACCESS read-create STATUS current DESCRIPTION "This object enables setting of the don't fragment flag (DF) in the IP header for a probe. Use of this object enables performing a manual PATH MTU test." DEFVAL { false } ::= { traceRouteCtlEntry 17 }
traceRouteCtlInitialTtl OBJECT-TYPE SYNTAX Unsigned32 (0..255) MAX-ACCESS read-create STATUS current DESCRIPTION "The value of this object specifies the initial TTL value to use. This enables bypassing the initial (often well known) portion of a path." DEFVAL { 1 } ::= { traceRouteCtlEntry 18 }
traceRouteCtlFrequency OBJECT-TYPE SYNTAX Unsigned32 UNITS "seconds" MAX-ACCESS read-create STATUS current
White Standards Track [Page 44]
RFC 2925 Ping, Traceroute, and Lookup MIBs September 2000
DESCRIPTION "The number of seconds to wait before repeating a traceroute test as defined by the value of the various objects in the corresponding row.
The number of hops in a single traceroute test is determined by the value of the corresponding traceRouteCtlProbesPerHop object. After a single test completes the number of seconds as defined by the value of traceRouteCtlFrequency MUST elapse before the next traceroute test is started.
A value of 0 for this object implies that the test as defined by the corresponding entry will not be repeated." DEFVAL { 0 } ::= { traceRouteCtlEntry 19 }
traceRouteCtlStorageType OBJECT-TYPE SYNTAX StorageType MAX-ACCESS read-create STATUS current DESCRIPTION "The storage type for this conceptual row. Conceptual rows having the value 'permanent' need not allow write-access to any columnar objects in the row." DEFVAL { nonVolatile } ::= { traceRouteCtlEntry 20 }
traceRouteCtlAdminStatus OBJECT-TYPE SYNTAX INTEGER { enabled(1), -- operation should be started disabled(2) -- operation should be stopped } MAX-ACCESS read-create STATUS current DESCRIPTION "Reflects the desired state that an traceRouteCtlEntry should be in:
enabled(1) - Attempt to activate the test as defined by this traceRouteCtlEntry. disabled(2) - Deactivate the test as defined by this traceRouteCtlEntry.
Refer to the corresponding traceRouteResultsOperStatus to determine the operational state of the test defined by this entry."
White Standards Track [Page 45]
RFC 2925 Ping, Traceroute, and Lookup MIBs September 2000
DEFVAL { disabled } ::= { traceRouteCtlEntry 21 }
traceRouteCtlDescr OBJECT-TYPE SYNTAX SnmpAdminString MAX-ACCESS read-create STATUS current DESCRIPTION "The purpose of this object is to provide a descriptive name of the remote traceroute test." DEFVAL { '00'H } ::= { traceRouteCtlEntry 22 }
traceRouteCtlMaxRows OBJECT-TYPE SYNTAX Unsigned32 UNITS "rows" MAX-ACCESS read-create STATUS current DESCRIPTION "The maximum number of entries allowed in the traceRouteProbeHistoryTable. An implementation of this MIB will remove the oldest entry in the traceRouteProbeHistoryTable to allow the addition of an new entry once the number of rows in the traceRouteProbeHistoryTable reaches this value.
Old entries are not removed when a new test is started. Entries are added to the traceRouteProbeHistoryTable until traceRouteCtlMaxRows is reached before entries begin to be removed.
A value of 0 for this object disables creation of traceRouteProbeHistoryTable entries." DEFVAL { 50 } ::= { traceRouteCtlEntry 23 }
traceRouteCtlTrapGeneration OBJECT-TYPE SYNTAX BITS { pathChange(0), testFailure(1), testCompletion(2) } MAX-ACCESS read-create STATUS current DESCRIPTION "The value of this object determines when and if to to generate a notification for this entry:
White Standards Track [Page 46]
RFC 2925 Ping, Traceroute, and Lookup MIBs September 2000
pathChange(0) - Generate a traceRoutePathChange notification when the current path varies from a previously determined path. testFailure(1) - Generate a traceRouteTestFailed notification when the full path to a target can't be determined. testCompletion(2) - Generate a traceRouteTestCompleted notification when the path to a target has been determined.
The value of this object defaults to zero, indicating that none of the above options have been selected." ::= { traceRouteCtlEntry 24 }
traceRouteCtlCreateHopsEntries OBJECT-TYPE SYNTAX TruthValue MAX-ACCESS read-create STATUS current DESCRIPTION "The current path for a traceroute test is kept in the traceRouteHopsTable on a per hop basis when the value of this object is true(1)." DEFVAL { false } ::= { traceRouteCtlEntry 25 }
traceRouteCtlType OBJECT-TYPE SYNTAX OBJECT IDENTIFIER MAX-ACCESS read-create STATUS current DESCRIPTION "The value of this object is used either to report or select the implementation method to be used for performing a traceroute operation. The value of this object may be selected from traceRouteImplementationTypeDomains.
Additional implementation types should be allocated as required by implementers of the DISMAN-TRACEROUTE-MIB under their enterprise specific registration point and not beneath traceRouteImplementationTypeDomains." DEFVAL { traceRouteUsingUdpProbes } ::= { traceRouteCtlEntry 26 }
traceRouteCtlRowStatus OBJECT-TYPE SYNTAX RowStatus MAX-ACCESS read-create STATUS current DESCRIPTION
White Standards Track [Page 47]
RFC 2925 Ping, Traceroute, and Lookup MIBs September 2000
"This object allows entries to be created and deleted in the traceRouteCtlTable. Deletion of an entry in this table results in all corresponding (same traceRouteCtlOwnerIndex and traceRouteCtlTestName index values) traceRouteResultsTable, traceRouteProbeHistoryTable, and traceRouteHopsTable entries being deleted.
A value MUST be specified for traceRouteCtlTargetAddress prior to a transition to active(1) state being accepted.
Activation of a remote traceroute operation is controlled via traceRouteCtlAdminStatus and not by transitioning of this object's value to active(1).
Transitions in and out of active(1) state are not allowed while an entry's traceRouteResultsOperStatus is active(1) with the exception that deletion of an entry in this table by setting its RowStatus object to destroy(6) will stop an active traceroute operation.
The operational state of an traceroute operation can be determined by examination of the corresponding traceRouteResultsOperStatus object." REFERENCE "See definition of RowStatus in RFC 2579, 'Textual Conventions for SMIv2.'" ::= { traceRouteCtlEntry 27 }
-- Traceroute Results Table
traceRouteResultsTable OBJECT-TYPE SYNTAX SEQUENCE OF TraceRouteResultsEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "Defines the Remote Operations Traceroute Results Table for keeping track of the status of a traceRouteCtlEntry.
An entry is added to the traceRouteResultsTable when an traceRouteCtlEntry is started by successful transition of its traceRouteCtlAdminStatus object to enabled(1). An entry is removed from the traceRouteResultsTable when its corresponding traceRouteCtlEntry is deleted." ::= { traceRouteObjects 3 }
White Standards Track [Page 48]
RFC 2925 Ping, Traceroute, and Lookup MIBs September 2000
traceRouteResultsEntry OBJECT-TYPE SYNTAX TraceRouteResultsEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "Defines an entry in the traceRouteResultsTable. The traceRouteResultsTable has the same indexing as the traceRouteCtlTable in order for a traceRouteResultsEntry to correspond to the traceRouteCtlEntry that caused it to be created." INDEX { traceRouteCtlOwnerIndex, traceRouteCtlTestName } ::= { traceRouteResultsTable 1 }
traceRouteResultsOperStatus OBJECT-TYPE SYNTAX INTEGER { enabled(1), -- test is in progress disabled(2) -- test has stopped } MAX-ACCESS read-only STATUS current DESCRIPTION "Reflects the operational state of an traceRouteCtlEntry:
enabled(1) - Test is active. disabled(2) - Test has stopped." ::= { traceRouteResultsEntry 1 }
traceRouteResultsCurHopCount OBJECT-TYPE SYNTAX Gauge32 UNITS "hops" MAX-ACCESS read-only STATUS current DESCRIPTION
White Standards Track [Page 49]
RFC 2925 Ping, Traceroute, and Lookup MIBs September 2000
"Reflects the current TTL value (range from 1 to 255) for a remote traceroute operation. Maximum TTL value is determined by traceRouteCtlMaxTtl." ::= { traceRouteResultsEntry 2 }
traceRouteResultsCurProbeCount OBJECT-TYPE SYNTAX Gauge32 UNITS "probes" MAX-ACCESS read-only STATUS current DESCRIPTION "Reflects the current probe count (1..10) for a remote traceroute operation. The maximum probe count is determined by traceRouteCtlProbesPerHop." ::= { traceRouteResultsEntry 3 }
traceRouteResultsIpTgtAddrType OBJECT-TYPE SYNTAX InetAddressType MAX-ACCESS read-only STATUS current DESCRIPTION "This objects indicates the type of address stored in the corresponding traceRouteResultsIpTgtAddr object." ::= { traceRouteResultsEntry 4 }
traceRouteResultsIpTgtAddr OBJECT-TYPE SYNTAX InetAddress MAX-ACCESS read-only STATUS current DESCRIPTION "This objects reports the IP address associated with a traceRouteCtlTargetAddress value when the destination address is specified as a DNS name. The value of this object should be a zero length octet string when a DNS name is not specified or when a specified DNS name fails to resolve." ::= { traceRouteResultsEntry 5 }
traceRouteResultsTestAttempts OBJECT-TYPE SYNTAX Unsigned32 UNITS "tests" MAX-ACCESS read-only STATUS current DESCRIPTION "The current number of attempts to determine a path
White Standards Track [Page 50]
RFC 2925 Ping, Traceroute, and Lookup MIBs September 2000
to a target. The value of this object MUST be started at 0." ::= { traceRouteResultsEntry 6 }
traceRouteResultsTestSuccesses OBJECT-TYPE SYNTAX Unsigned32 UNITS "tests" MAX-ACCESS read-only STATUS current DESCRIPTION "The current number of attempts to determine a path to a target that have succeeded. The value of this object MUST be reported as 0 when no attempts have succeeded." ::= { traceRouteResultsEntry 7 }
traceRouteResultsLastGoodPath OBJECT-TYPE SYNTAX DateAndTime MAX-ACCESS read-only STATUS current DESCRIPTION "The date and time when the last complete path was determined." ::= { traceRouteResultsEntry 8 }
-- Trace Route Probe History Table
traceRouteProbeHistoryTable OBJECT-TYPE SYNTAX SEQUENCE OF TraceRouteProbeHistoryEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "Defines the Remote Operations Traceroute Results Table for storing the results of a traceroute operation.
An implementation of this MIB will remove the oldest entry in the traceRouteProbeHistoryTable to allow the addition of an new entry once the number of rows in the traceRouteProbeHistoryTable reaches the value specified by traceRouteCtlMaxRows." ::= { traceRouteObjects 4 }
traceRouteProbeHistoryEntry OBJECT-TYPE SYNTAX TraceRouteProbeHistoryEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "Defines a table for storing the results of a traceroute
White Standards Track [Page 51]
RFC 2925 Ping, Traceroute, and Lookup MIBs September 2000
operation. Entries in this table are limited by the value of the corresponding traceRouteCtlMaxRows object.
The first two index elements identify the traceRouteCtlEntry that a traceRouteProbeHistoryEntry belongs to. The third index element selects a single traceroute operation result. The fourth and fifth indexes select the hop and the probe for a particular traceroute operation." INDEX { traceRouteCtlOwnerIndex, traceRouteCtlTestName, traceRouteProbeHistoryIndex, traceRouteProbeHistoryHopIndex, traceRouteProbeHistoryProbeIndex } ::= { traceRouteProbeHistoryTable 1 }
traceRouteProbeHistoryIndex OBJECT-TYPE SYNTAX Unsigned32 (1..'ffffffff'h) MAX-ACCESS not-accessible STATUS current DESCRIPTION "An entry in this table is created when the result of a traceroute probe is determined. The initial 2 instance identifier index values identify the traceRouteCtlEntry that a probe result (traceRouteProbeHistoryEntry) belongs to. An entry is removed from this table when its corresponding traceRouteCtlEntry is deleted.
An implementation MUST start assigning traceRouteProbeHistoryIndex values at 1 and wrap after exceeding the maximum possible value as defined by the limit of this object ('ffffffff'h)."
White Standards Track [Page 52]
RFC 2925 Ping, Traceroute, and Lookup MIBs September 2000
::= { traceRouteProbeHistoryEntry 1 }
traceRouteProbeHistoryHopIndex OBJECT-TYPE SYNTAX Unsigned32 (1..255) MAX-ACCESS not-accessible STATUS current DESCRIPTION "Indicates which hop in a traceroute path that the probe's results are for. The value of this object is initially determined by the value of traceRouteCtlInitialTtl." ::= { traceRouteProbeHistoryEntry 2 }
traceRouteProbeHistoryProbeIndex OBJECT-TYPE SYNTAX Unsigned32 (1..10) MAX-ACCESS not-accessible STATUS current DESCRIPTION "Indicates the index of a probe for a particular hop in a traceroute path. The number of probes per hop is determined by the value of the corresponding traceRouteCtlProbesPerHop object." ::= { traceRouteProbeHistoryEntry 3 }
traceRouteProbeHistoryHAddrType OBJECT-TYPE SYNTAX InetAddressType MAX-ACCESS read-only STATUS current DESCRIPTION "This objects indicates the type of address stored in the corresponding traceRouteProbeHistoryHAddr object." ::= { traceRouteProbeHistoryEntry 4 }
traceRouteProbeHistoryHAddr OBJECT-TYPE SYNTAX InetAddress MAX-ACCESS read-only STATUS current DESCRIPTION "The address of a hop in a traceroute path. This object is not allowed to be a DNS name. The value of the corresponding object, traceRouteProbeHistoryHAddrType, indicates this object's IP address type." ::= { traceRouteProbeHistoryEntry 5 }
traceRouteProbeHistoryResponse OBJECT-TYPE SYNTAX Unsigned32 UNITS "milliseconds" MAX-ACCESS read-only
White Standards Track [Page 53]
RFC 2925 Ping, Traceroute, and Lookup MIBs September 2000
STATUS current DESCRIPTION "The amount of time measured in milliseconds from when a probe was sent to when its response was received or when it timed out. The value of this object is reported as 0 when it is not possible to transmit a probe." ::= { traceRouteProbeHistoryEntry 6 }
traceRouteProbeHistoryStatus OBJECT-TYPE SYNTAX OperationResponseStatus MAX-ACCESS read-only STATUS current DESCRIPTION "The result of a traceroute operation made by a remote host for a particular probe." ::= { traceRouteProbeHistoryEntry 7 }
traceRouteProbeHistoryLastRC OBJECT-TYPE SYNTAX Integer32 MAX-ACCESS read-only STATUS current DESCRIPTION "The last implementation method specific reply code received.
Traceroute is usually implemented by transmitting a series of probe packets with increasing time-to-live values. A probe packet is a UDP datagram encapsulated into an IP packet. Each hop in a path to the target (destination) host rejects the probe packets (probe's TTL too small, ICMP reply) until either the maximum TTL is exceeded or the target host is received." ::= { traceRouteProbeHistoryEntry 8 }
traceRouteProbeHistoryTime OBJECT-TYPE SYNTAX DateAndTime MAX-ACCESS read-only STATUS current DESCRIPTION "Timestamp for when this probe results were determined." ::= { traceRouteProbeHistoryEntry 9 }
-- Traceroute Hop Results Table
traceRouteHopsTable OBJECT-TYPE SYNTAX SEQUENCE OF TraceRouteHopsEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION
White Standards Track [Page 54]
RFC 2925 Ping, Traceroute, and Lookup MIBs September 2000
"Defines the Remote Operations Traceroute Hop Table for keeping track of the results of traceroute tests on a per hop basis." ::= { traceRouteObjects 5 }
traceRouteHopsEntry OBJECT-TYPE SYNTAX TraceRouteHopsEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "Defines an entry in the traceRouteHopsTable.
The first two index elements identify the traceRouteCtlEntry that a traceRouteHopsEntry belongs to. The third index element, traceRouteHopsHopIndex, selects a hop in a traceroute path." INDEX { traceRouteCtlOwnerIndex, traceRouteCtlTestName, traceRouteHopsHopIndex } ::= { traceRouteHopsTable 1 }
traceRouteHopsHopIndex OBJECT-TYPE SYNTAX Unsigned32 MAX-ACCESS not-accessible STATUS current DESCRIPTION "Specifies the hop index for a traceroute hop. Values for this object with respect to the same traceRouteCtlOwnerIndex and traceRouteCtlTestName MUST start at 1 and increase monotonically.
White Standards Track [Page 55]
RFC 2925 Ping, Traceroute, and Lookup MIBs September 2000
The traceRouteHopsTable keeps the current traceroute path per traceRouteCtlEntry if enabled by setting the corresponding traceRouteCtlCreateHopsEntries to true(1).
All hops (traceRouteHopsTable entries) in a traceroute path MUST be updated at the same time when a traceroute operation completes. Care needs to be applied when either a path changes or can't be determined. The initial portion of the path, up to the first hop change, MUST retain the same traceRouteHopsHopIndex values. The remaining portion of the path SHOULD be assigned new traceRouteHopsHopIndex values." ::= { traceRouteHopsEntry 1 }
traceRouteHopsIpTgtAddressType OBJECT-TYPE SYNTAX InetAddressType MAX-ACCESS read-only STATUS current DESCRIPTION "This objects indicates the type of address stored in the corresponding traceRouteHopsIpTargetAddress object." ::= { traceRouteHopsEntry 2 }
traceRouteHopsIpTgtAddress OBJECT-TYPE SYNTAX InetAddress MAX-ACCESS read-only STATUS current DESCRIPTION "This object reports the IP address associated with the hop. A value for this object should be reported as a numeric IP address and not as a DNS name." ::= { traceRouteHopsEntry 3 }
traceRouteHopsMinRtt OBJECT-TYPE SYNTAX Unsigned32 MAX-ACCESS read-only STATUS current DESCRIPTION "The minimum traceroute round-trip-time (RTT) received for this hop. A value of 0 for this object implies that no RTT has been received." ::= { traceRouteHopsEntry 4 }
RFC 2925 Ping, Traceroute, and Lookup MIBs September 2000
STATUS current DESCRIPTION "The maximum traceroute round-trip-time (RTT) received for this hop. A value of 0 for this object implies that no RTT has been received." ::= { traceRouteHopsEntry 5 }
traceRouteHopsAverageRtt OBJECT-TYPE SYNTAX Unsigned32 MAX-ACCESS read-only STATUS current DESCRIPTION "The current average traceroute round-trip-time (RTT) for this hop." ::= { traceRouteHopsEntry 6 }
traceRouteHopsRttSumOfSquares OBJECT-TYPE SYNTAX Unsigned32 MAX-ACCESS read-only STATUS current DESCRIPTION "This object contains the sum of all traceroute responses received for this hop. Its purpose is to enable standard deviation calculation." ::= { traceRouteHopsEntry 7 }
traceRouteHopsSentProbes OBJECT-TYPE SYNTAX Unsigned32 MAX-ACCESS read-only STATUS current DESCRIPTION "The value of this object reflects the number of probes sent for this hop during this traceroute test. The value of this object should start at 0." ::= { traceRouteHopsEntry 8 }
traceRouteHopsProbeResponses OBJECT-TYPE SYNTAX Unsigned32 MAX-ACCESS read-only STATUS current DESCRIPTION "Number of responses received for this hop during this traceroute test. This value of this object should start at 0." ::= { traceRouteHopsEntry 9 }
RFC 2925 Ping, Traceroute, and Lookup MIBs September 2000
MAX-ACCESS read-only STATUS current DESCRIPTION "Date and time was the last response was received for a probe for this hop during this traceroute test." ::= { traceRouteHopsEntry 10 }
-- Notification Definition section
traceRoutePathChange NOTIFICATION-TYPE OBJECTS { traceRouteCtlTargetAddressType, traceRouteCtlTargetAddress, traceRouteResultsIpTgtAddrType, traceRouteResultsIpTgtAddr } STATUS current DESCRIPTION "The path to a target has changed." ::= { traceRouteNotifications 1 }
traceRouteTestFailed NOTIFICATION-TYPE OBJECTS { traceRouteCtlTargetAddressType, traceRouteCtlTargetAddress, traceRouteResultsIpTgtAddrType, traceRouteResultsIpTgtAddr } STATUS current DESCRIPTION "Could not determine the path to a target." ::= { traceRouteNotifications 2 }
traceRouteTestCompleted NOTIFICATION-TYPE OBJECTS { traceRouteCtlTargetAddressType, traceRouteCtlTargetAddress, traceRouteResultsIpTgtAddrType, traceRouteResultsIpTgtAddr } STATUS current DESCRIPTION "The path to a target has just been determined." ::= { traceRouteNotifications 3 }
-- Conformance information -- Compliance statements
White Standards Track [Page 58]
RFC 2925 Ping, Traceroute, and Lookup MIBs September 2000
traceRouteCompliance MODULE-COMPLIANCE STATUS current DESCRIPTION "The compliance statement for the DISMAN-TRACEROUTE-MIB." MODULE -- this module MANDATORY-GROUPS { traceRouteGroup } GROUP traceRouteTimeStampGroup DESCRIPTION "This group is mandatory for implementations that have access to a system clock and are capable of setting the values for DateAndTime objects."
GROUP traceRouteNotificationsGroup DESCRIPTION "This group defines a collection of optional notifications."
GROUP traceRouteHopsTableGroup DESCRIPTION "This group lists the objects that make up a traceRouteHopsEntry. Support of the traceRouteHopsTable is optional."
OBJECT traceRouteMaxConcurrentRequests MIN-ACCESS read-only DESCRIPTION "The agent is not required to support SET operations to this object."
OBJECT traceRouteCtlByPassRouteTable MIN-ACCESS read-only DESCRIPTION "This object is not required by implementations that are not capable of its implementation. The function represented by this object is implementable if the setsockopt SOL_SOCKET SO_DONTROUTE option is supported."
RFC 2925 Ping, Traceroute, and Lookup MIBs September 2000
DESCRIPTION "This object is not required by implementations that are not capable of binding the send socket with a source address. An implementation is only required to support IPv4 and IPv6 addresses."
OBJECT traceRouteCtlSourceAddress SYNTAX InetAddress (SIZE(0|4|16)) MIN-ACCESS read-only DESCRIPTION "This object is not required by implementations that are not capable of binding the send socket with a source address. An implementation is only required to support IPv4 and globally unique IPv6 addresses."
OBJECT traceRouteCtlIfIndex MIN-ACCESS read-only DESCRIPTION "Write access is not required. When write access is not supported return a 0 as the value of this object. A value of 0 implies that the function represented by this option is not supported."
OBJECT traceRouteCtlMiscOptions MIN-ACCESS read-only DESCRIPTION "Support of this object is optional. When not supporting do not allow write access and return a zero length octet string as the value of the object."
OBJECT traceRouteCtlStorageType MIN-ACCESS read-only DESCRIPTION "Write access is not required. It is also allowed for implementations to support only the volatile StorageType enumeration."
OBJECT traceRouteCtlDSField MIN-ACCESS read-only DESCRIPTION "Write access is not required. When write access is not supported return a 0 as the value of this object. A value of 0 implies that the function represented by this option is not supported."
RFC 2925 Ping, Traceroute, and Lookup MIBs September 2000
"Write access is not required. In addition, the only value that is RECOMMENDED to be supported by an implementation is traceRouteUsingUdpProbes."
OBJECT traceRouteResultsIpTgtAddrType SYNTAX InetAddressType { unknown(0), ipv4(1), ipv6(2) } DESCRIPTION "An implementation should only support IPv4 and globally unique IPv6 address values for this object."
OBJECT traceRouteResultsIpTgtAddr SYNTAX InetAddress (SIZE(0|4|16)) DESCRIPTION "An implementation should only support IPv4 and globally unique IPv6 address values for this object."
OBJECT traceRouteProbeHistoryHAddrType SYNTAX InetAddressType { unknown(0), ipv4(1), ipv6(2) } DESCRIPTION "An implementation should only support IPv4 and globally unique IPv6 address values for this object." OBJECT traceRouteProbeHistoryHAddr SYNTAX InetAddress (SIZE(0|4|16)) DESCRIPTION "An implementation should only support IPv4 and globally unique IPv6 address values for this object."
OBJECT traceRouteHopsIpTgtAddressType SYNTAX InetAddressType { unknown(0), ipv4(1), ipv6(2) } DESCRIPTION "An implementation should only support IPv4 and globally unique IPv6 address values for this object."
OBJECT traceRouteHopsIpTgtAddress SYNTAX InetAddress (SIZE(0|4|16)) DESCRIPTION "An implementation should only support IPv4 and globally unique IPv6 address values for this object." ::= { traceRouteCompliances 1 }
RFC 2925 Ping, Traceroute, and Lookup MIBs September 2000
traceRouteCtlDataSize, traceRouteCtlTimeOut, traceRouteCtlProbesPerHop, traceRouteCtlPort, traceRouteCtlMaxTtl, traceRouteCtlDSField, traceRouteCtlSourceAddressType, traceRouteCtlSourceAddress, traceRouteCtlIfIndex, traceRouteCtlMiscOptions, traceRouteCtlMaxFailures, traceRouteCtlDontFragment, traceRouteCtlInitialTtl, traceRouteCtlFrequency, traceRouteCtlStorageType, traceRouteCtlAdminStatus, traceRouteCtlMaxRows, traceRouteCtlTrapGeneration, traceRouteCtlDescr, traceRouteCtlCreateHopsEntries, traceRouteCtlType, traceRouteCtlRowStatus, traceRouteResultsOperStatus, traceRouteResultsCurHopCount, traceRouteResultsCurProbeCount, traceRouteResultsIpTgtAddrType, traceRouteResultsIpTgtAddr, traceRouteResultsTestAttempts, traceRouteResultsTestSuccesses, traceRouteProbeHistoryHAddrType, traceRouteProbeHistoryHAddr, traceRouteProbeHistoryResponse, traceRouteProbeHistoryStatus, traceRouteProbeHistoryLastRC } STATUS current DESCRIPTION "The group of objects that comprise the remote traceroute operation." ::= { traceRouteGroups 1 }
traceRouteTimeStampGroup OBJECT-GROUP OBJECTS { traceRouteResultsLastGoodPath, traceRouteProbeHistoryTime } STATUS current DESCRIPTION
White Standards Track [Page 62]
RFC 2925 Ping, Traceroute, and Lookup MIBs September 2000
"The group of DateAndTime objects." ::= { traceRouteGroups 2 }
traceRouteNotificationsGroup NOTIFICATION-GROUP NOTIFICATIONS { traceRoutePathChange, traceRouteTestFailed, traceRouteTestCompleted } STATUS current DESCRIPTION "The notifications which are required to be supported by implementations of this MIB." ::= { traceRouteGroups 3 }
traceRouteHopsTableGroup OBJECT-GROUP OBJECTS { traceRouteHopsIpTgtAddressType, traceRouteHopsIpTgtAddress, traceRouteHopsMinRtt, traceRouteHopsMaxRtt, traceRouteHopsAverageRtt, traceRouteHopsRttSumOfSquares, traceRouteHopsSentProbes, traceRouteHopsProbeResponses, traceRouteHopsLastGoodProbe } STATUS current DESCRIPTION "The group of objects that comprise the traceRouteHopsTable." ::= { traceRouteGroups 4 }
IMPORTS MODULE-IDENTITY, OBJECT-TYPE, Unsigned32, mib-2, Integer32 FROM SNMPv2-SMI -- RFC2578 RowStatus FROM SNMPv2-TC -- RFC2579 MODULE-COMPLIANCE, OBJECT-GROUP FROM SNMPv2-CONF -- RFC2580 SnmpAdminString FROM SNMP-FRAMEWORK-MIB -- RFC2571
White Standards Track [Page 63]
RFC 2925 Ping, Traceroute, and Lookup MIBs September 2000
InetAddressType, InetAddress FROM INET-ADDRESS-MIB; -- RFC2851
lookupMIB MODULE-IDENTITY LAST-UPDATED "200009210000Z" -- 21 September 2000 ORGANIZATION "IETF Distributed Management Working Group" CONTACT-INFO "Kenneth White
International Business Machines Corporation Network Computing Software Division Research Triangle Park, NC, USA
E-mail: wkenneth@us.ibm.com" DESCRIPTION "The Lookup MIB (DISMAN-NSLOOKUP-MIB) enables determination of either the name(s) corresponding to a host address or of the address(es) associated with a host name at a remote host."
-- Revision history
REVISION "200009210000Z" -- 21 September 2000 DESCRIPTION "Initial version, published as RFC 2925."
lookupMaxConcurrentRequests OBJECT-TYPE SYNTAX Unsigned32 UNITS "requests" MAX-ACCESS read-write STATUS current DESCRIPTION "The maximum number of concurrent active lookup requests that are allowed within an agent implementation. A value of 0 for this object implies that there is no limit for the number of concurrent active requests in effect." DEFVAL { 10 } ::= { lookupObjects 1 }
White Standards Track [Page 64]
RFC 2925 Ping, Traceroute, and Lookup MIBs September 2000
lookupPurgeTime OBJECT-TYPE SYNTAX Unsigned32 (0..86400) UNITS "seconds" MAX-ACCESS read-write STATUS current DESCRIPTION "The amount of time to wait before automatically deleting an entry in the lookupCtlTable and any dependent lookupResultsTable entries after the lookup operation represented by an lookupCtlEntry has completed.
An lookupCtEntry is considered complete when its lookupCtlOperStatus object has a value of completed(3)." DEFVAL { 900 } -- 15 minutes as default ::= { lookupObjects 2 }
-- Lookup Control Table
lookupCtlTable OBJECT-TYPE SYNTAX SEQUENCE OF LookupCtlEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "Defines the Lookup Control Table for providing the capability of performing a lookup operation, gethostbyname or gethostbyaddr, from a remote host." ::= { lookupObjects 3 }
lookupCtlEntry OBJECT-TYPE SYNTAX LookupCtlEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "Defines an entry in the lookupCtlTable. A lookupCtlEntry is initially indexed by lookupCtlOwnerIndex, which is of type SnmpAdminString, a textual convention that allows for use of the SNMPv3 View-Based Access Control Model (RFC 2575 [11], VACM) and also allows an management application to identify its entries. The second index element, lookupCtlOperationName, enables the same lookupCtlOwnerIndex entity to have multiple outstanding requests.
The value of lookupCtlTargetAddressType determines which lookup function to perform. Specification of dns(16)
White Standards Track [Page 65]
RFC 2925 Ping, Traceroute, and Lookup MIBs September 2000
as the value of this index implies that the gethostbyname function should be performed to determine the numeric addresses associated with a symbolic name via lookupResultsTable entries. Use of a value of either ipv4(1) or ipv6(2) implies that the gethostbyaddr function should be performed to determine the symbolic name(s) associated with a numeric address at a remote host." INDEX { lookupCtlOwnerIndex, lookupCtlOperationName } ::= { lookupCtlTable 1 }
lookupCtlOwnerIndex OBJECT-TYPE SYNTAX SnmpAdminString (SIZE(0..32)) MAX-ACCESS not-accessible STATUS current DESCRIPTION "To facilitate the provisioning of access control by a security administrator using the View-Based Access Control Model (RFC 2575, VACM) for tables in which multiple users may need to independently create or modify entries, the initial index is used as an 'owner index'. Such an initial index has a syntax of SnmpAdminString, and can thus be trivially mapped to a securityName or groupName as defined in VACM, in accordance with a security policy.
When used in conjunction with such a security policy all entries in the table belonging to a particular user (or group) will have the same value for this initial index. For a given user's entries in a particular table, the object identifiers for the information in these entries will have the same subidentifiers (except for the 'column' subidentifier) up to the end of the encoded owner index. To configure VACM to permit access to this
White Standards Track [Page 66]
RFC 2925 Ping, Traceroute, and Lookup MIBs September 2000
portion of the table, one would create vacmViewTreeFamilyTable entries with the value of vacmViewTreeFamilySubtree including the owner index portion, and vacmViewTreeFamilyMask 'wildcarding' the column subidentifier. More elaborate configurations are possible." ::= { lookupCtlEntry 1 }
lookupCtlOperationName OBJECT-TYPE SYNTAX SnmpAdminString (SIZE(0..32)) MAX-ACCESS not-accessible STATUS current DESCRIPTION "The name of a lookup operation. This is locally unique, within the scope of an lookupCtlOwnerIndex." ::= { lookupCtlEntry 2 }
lookupCtlTargetAddressType OBJECT-TYPE SYNTAX InetAddressType MAX-ACCESS read-create STATUS current DESCRIPTION "Specifies the type of address for either performing a gethostbyname or a gethostbyaddr function at a remote host. Specification of dns(16) as the value for this object means that the gethostbyname function should be performed to return one or more numeric addresses. Use of a value of either ipv4(1) or ipv6(2) means that the gethostbyaddr function should be used to return the symbolic names associated with a remote host." ::= { lookupCtlEntry 3 }
lookupCtlTargetAddress OBJECT-TYPE SYNTAX InetAddress MAX-ACCESS read-create STATUS current DESCRIPTION "Specifies the address used for a resolver lookup at a remote host. The corresponding lookupCtlAddressType objects determines its type as well as the function that can be requested.
A value for this object MUST be set prior to transitioning its corresponding lookupCtlEntry to active(1) via lookupCtlRowStatus." ::= { lookupCtlEntry 4 }
lookupCtlOperStatus OBJECT-TYPE
White Standards Track [Page 67]
RFC 2925 Ping, Traceroute, and Lookup MIBs September 2000
SYNTAX INTEGER { notStarted(2), -- operation has not started completed(3) -- operation is done } MAX-ACCESS read-only STATUS current DESCRIPTION "Reflects the operational state of an lookupCtlEntry:
enabled(1) - Operation is active. notStarted(2) - Operation has not been enabled. completed(3) - Operation has completed.
An operation is automatically enabled(1) when its lookupCtlRowStatus object is transitioned to active(1) status. Until this occurs lookupCtlOperStatus MUST report a value of notStarted(2). After the lookup operation completes (success or failure) the value for lookupCtlOperStatus MUST be transitioned to completed(3)." ::= { lookupCtlEntry 5 }
lookupCtlTime OBJECT-TYPE SYNTAX Unsigned32 UNITS "milliseconds" MAX-ACCESS read-only STATUS current DESCRIPTION "Reports the number of milliseconds that a lookup operation required to be completed at a remote host. Completed means operation failure as well as success." ::= { lookupCtlEntry 6 }
lookupCtlRc OBJECT-TYPE SYNTAX Integer32 MAX-ACCESS read-only STATUS current DESCRIPTION "The system specific return code from a lookup operation. All implementations MUST return a value of 0 for this object when the remote lookup operation succeeds. A non-zero value for this objects indicates failure. It is recommended that implementations that support errno use it as the value of this object to aid a management application in determining the cause of failure." ::= { lookupCtlEntry 7 }
White Standards Track [Page 68]
RFC 2925 Ping, Traceroute, and Lookup MIBs September 2000
lookupCtlRowStatus OBJECT-TYPE SYNTAX RowStatus MAX-ACCESS read-create STATUS current DESCRIPTION "This object allows entries to be created and deleted in the lookupCtlTable.
A remote lookup operation is started when an entry in this table is created via an SNMP SET request and the entry is activated. This occurs by setting the value of this object to CreateAndGo(4) during row creation or by setting this object to active(1) after the row is created.
A value MUST be specified for lookupCtlTargetAddress prior to a transition to active(1) state being accepted.
A remote lookup operation starts when its entry first becomes active(1). Transitions in and out of active(1) state have no effect on the operational behavior of a remote lookup operation, with the exception that deletion of an entry in this table by setting its RowStatus object to destroy(6) will stop an active remote lookup operation.
The operational state of a remote lookup operation can be determined by examination of its lookupCtlOperStatus object." REFERENCE "See definition of RowStatus in RFC 2579, 'Textual Conventions for SMIv2.'" ::= { lookupCtlEntry 8 }
-- Lookup Results Table
lookupResultsTable OBJECT-TYPE SYNTAX SEQUENCE OF LookupResultsEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "Defines the Lookup Results Table for providing the capability of determining the results of a operation at a remote host.
White Standards Track [Page 69]
RFC 2925 Ping, Traceroute, and Lookup MIBs September 2000
One or more entries are added to the lookupResultsTable when a lookup operation, as reflected by an lookupCtlEntry, completes successfully. All entries related to a successful lookup operation MUST be added to the lookupResultsTable at the same time that the associating lookupCtlOperStatus object is transitioned to completed(2).
The number of entries added depends on the results determined for a particular lookup operation. All entries associated with an lookupCtlEntry are removed when the lookupCtlEntry is deleted.
A remote host can be multi-homed and have more than one IP address associated with it (gethostbyname results) and/or it can have more than one symbolic name (gethostbyaddr results).
The gethostbyaddr function is called with a host address as its parameter and is used primarily to determine a symbolic name to associate with the host address. Entries in the lookupResultsTable MUST be made for each host name returned. The official host name MUST be assigned a lookupResultsIndex of 1.
The gethostbyname function is called with a symbolic host name and is used primarily to retrieve a host address. If possible the primary host address SHOULD be assigned a lookupResultsIndex of 1." ::= { lookupObjects 4 }
lookupResultsEntry OBJECT-TYPE SYNTAX LookupResultsEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "Defines an entry in the lookupResultsTable. The first two index elements identify the lookupCtlEntry that a lookupResultsEntry belongs to. The third index element selects a single lookup operation result." INDEX { lookupCtlOwnerIndex, lookupCtlOperationName,
White Standards Track [Page 70]
RFC 2925 Ping, Traceroute, and Lookup MIBs September 2000
lookupResultsIndex OBJECT-TYPE SYNTAX Unsigned32 (1..'ffffffff'h) MAX-ACCESS not-accessible STATUS current DESCRIPTION "Entries in the lookupResultsTable are created when the result of a lookup operation is determined.
Entries MUST be stored in the lookupResultsTable in the order that they are retrieved. Values assigned to lookupResultsIndex MUST start at 1 and increase in order." ::= { lookupResultsEntry 1 }
lookupResultsAddressType OBJECT-TYPE SYNTAX InetAddressType MAX-ACCESS read-only STATUS current DESCRIPTION "Indicates the type of result of a remote lookup operation. A value of unknown(0) implies that either the operation hasn't been started or that it has failed." ::= { lookupResultsEntry 2 }
lookupResultsAddress OBJECT-TYPE SYNTAX InetAddress MAX-ACCESS read-only STATUS current DESCRIPTION "Reflects a result for a remote lookup operation as per the value of lookupResultsAddressType." ::= { lookupResultsEntry 3 }
-- Conformance information -- Compliance statements
White Standards Track [Page 71]
RFC 2925 Ping, Traceroute, and Lookup MIBs September 2000
lookupCompliance MODULE-COMPLIANCE STATUS current DESCRIPTION "The compliance statement for the DISMAN-NSLOOKUP-MIB." MODULE -- this module MANDATORY-GROUPS { lookupGroup }
OBJECT lookupMaxConcurrentRequests MIN-ACCESS read-only DESCRIPTION "The agent is not required to support SET operations to this object."
OBJECT lookupPurgeTime MIN-ACCESS read-only DESCRIPTION "The agent is not required to support a SET operation to this object." ::= { lookupCompliances 1 }
-- MIB groupings
lookupGroup OBJECT-GROUP OBJECTS { lookupMaxConcurrentRequests, lookupPurgeTime, lookupCtlOperStatus, lookupCtlTargetAddressType, lookupCtlTargetAddress, lookupCtlTime, lookupCtlRc, lookupCtlRowStatus, lookupResultsAddressType, lookupResultsAddress } STATUS current DESCRIPTION "The group of objects that comprise the remote Lookup operation." ::= { lookupGroups 1 }
White Standards Track [Page 72]
RFC 2925 Ping, Traceroute, and Lookup MIBs September 2000
Certain management information in the MIBs defined by this document may be considered sensitive in some network environments. Therefore, authentication of received SNMP requests and controlled access to management information SHOULD be employed in such environments. The method for this authentication is a function of the SNMP Administrative Framework, and has not been expanded by this MIB.
To facilitate the provisioning of access control by a security administrator using the View-Based Access Control Model (VACM) defined in RFC 2575 [11] for tables in which multiple users may need to independently create or modify entries, the initial index is used as an "owner index". Such an initial index has a syntax of SnmpAdminString, and can thus be trivially mapped to a securityName or groupName as defined in VACM, in accordance with a security policy.
All entries in related tables belonging to a particular user will have the same value for this initial index. For a given user's entries in a particular table, the object identifiers for the information in these entries will have the same subidentifiers (except for the "column" subidentifier) up to the end of the encoded owner index. To configure VACM to permit access to this portion of the table, one would create vacmViewTreeFamilyTable entries with the value of vacmViewTreeFamilySubtree including the owner index portion, and vacmViewTreeFamilyMask "wildcarding" the column subidentifier. More elaborate configurations are possible. The VACM access control mechanism described above provides control.
In general, both the ping and traceroute functions when used excessively are considered a form of system attack. In the case of ping sending a system requests too often can negatively effect its performance or attempting to connect to what is supposed to be an unused port can be very unpredictable. Excessive use of the
White Standards Track [Page 73]
RFC 2925 Ping, Traceroute, and Lookup MIBs September 2000
traceroute capability can like ping negatively affect system performance. In insecure environments it is RECOMMENDED that the MIBs defined within this memo not be supported.
The IETF takes no position regarding the validity or scope of any intellectual property or other rights that might be claimed to pertain to the implementation or use of the technology described in this document or the extent to which any license under such rights might or might not be available; neither does it represent that it has made any effort to identify any such rights. Information on the IETF's procedures with respect to rights in standards-track and standards-related documentation can be found in BCP-11. Copies of claims of rights made available for publication and any assurances of licenses to be made available, or the result of an attempt made to obtain a general license or permission for the use of such proprietary rights by implementers or users of this specification can be obtained from the IETF Secretariat.
The IETF invites any interested party to bring to its attention any copyrights, patents or patent applications, or other proprietary rights which may cover technology that may be required to practice this standard. Please address the information to the IETF Executive Director.
[3] McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J., Rose, M. and S. Waldbusser, "Structure of Management Information Version 2 (SMIv2)", STD 58, RFC 2578, April 1999.
[4] McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J., Rose, M. and S. Waldbusser, "Textual Conventions for SMIv2", STD 58, RFC 2579, April 1999.
[5] McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J., Rose, M. and S. Waldbusser, "Conformance Statements for SMIv2", STD 58, RFC 2580, April 1999.
White Standards Track [Page 74]
RFC 2925 Ping, Traceroute, and Lookup MIBs September 2000
[6] Case, J., McCloghrie, K., Rose, M. and S. Waldbusser, "Protocol Operations for Version 2 of the Simple Network Management Protocol (SNMPv2)", RFC 1905, January 1996.
[7] Harrington D., Presuhn, R. and B. Wijnen, "An Architecture for Describing SNMP Management Frameworks", RFC 2571, April 1999.
[8] Case, J., Harrington D., Presuhn, R. and B. Wijnen, "Message Processing and Dispatching for the Simple Network Management Protocol (SNMP)", RFC 2572, April 1999.
[9] Levi D., Meyer, P. and B. Stewart, "SNMPv3 Applications", RFC 2573, April 1999.
[10] Blumenthal, U. and B. Wijnen, "User-based Security Model (USM) for version 3 of the Simple Network Management Protocol (SNMPv3)", RFC 2574, April 1999.
[11] Wijnen, B., Presuhn, R. and K. McCloghrie, "View-based Access Control Model (VACM) for the Simple Network Management Protocol (SNMP)", RFC 2575, April 1999.
[12] Hovey, R. and S. Bradner, "The Organizations Involved in the IETF Standards Process", BCP 11, RFC 2028, October 1996.
[13] Bradner, S., "Key words for use in RFCs to Indicate Requirement Levels", BCP 14, RFC 2119, March 1997.
[14] Rose, M. and K. McCloghrie, "Structure and Identification of Management Information for TCP/IP-based Internets", RFC 1155, May 1990.
[15] Rose, M. and K. McCloghrie, "Concise MIB Definitions", RFC 1212, March 1991.
[16] Rose, M., "A Convention for Defining Traps for use with the SNMP", RFC 1215, March 1991.
[17] Case, J., McCloghrie, K., Rose, M. and S. Waldbusser, "Introduction to Community-based SNMPv2", RFC 1901, January 1996.
[18] Case, J., McCloghrie, K., Rose, M. and S. Waldbusser, "Transport Mappings for Version 2 of the Simple Network Management Protocol (SNMPv2)", RFC 1906, January 1996.
[19] Bradner, S., "The Internet Standards Process -- Revision 3", RFC 2026, BCP 9, October 1996.
White Standards Track [Page 75]
RFC 2925 Ping, Traceroute, and Lookup MIBs September 2000
[20] Postel, J., "Internet Control Message Protocol", RFC 792, September 1981.
[21] Nichols, K., Blake, S., Baker, F. and D. Black, "Definition of the Differentiated Services Field (DS Field) in the IPv4 and IPv6 Headers", RFC 2474, December 1998.
[22] Daniele, M., Haberman, B., Routhier, S. and J. Schoenwaelder, "Textual Conventions for Internet Network Addresses", RFC 2851, June 2000.
[23] McCloghrie, K. and F. Kastenholz, "The Interfaces Group MIB", RFC 2863, June 2000.
Copyright (C) The Internet Society (2000). All Rights Reserved.
This document and translations of it may be copied and furnished to others, and derivative works that comment on or otherwise explain it or assist in its implementation may be prepared, copied, published and distributed, in whole or in part, without restriction of any kind, provided that the above copyright notice and this paragraph are included on all such copies and derivative works. However, this document itself may not be modified in any way, such as by removing the copyright notice or references to the Internet Society or other Internet organizations, except as needed for the purpose of developing Internet standards in which case the procedures for copyrights defined in the Internet Standards process must be followed, or as required to translate it into languages other than English.
The limited permissions granted above are perpetual and will not be revoked by the Internet Society or its successors or assigns.
This document and the information contained herein is provided on an "AS IS" basis and THE INTERNET SOCIETY AND THE INTERNET ENGINEERING TASK FORCE DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE INFORMATION HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
Acknowledgement
Funding for the RFC Editor function is currently provided by the Internet Society.