The Extension MIB module for the CISCO-HSRP-MIB which is based on RFC2281. This MIB provides an extension to the CISCO-HSRP-MIB which defines Cisco's proprietary Hot Standby Routing Protocol (HSRP), defined in RFC2281. The extensions cover assigning of secondary HSRP ip addresses, modifying an HSRP Group's priority by tracking the operational status of interfaces, etc. Terminology: HSRP is a protocol used amoung a group of routers for the purpose of selecting an active router and a standby router. An active router is the router of choice for routing packets. A standby router is a router that takes over the routing duties when an active router fails, or when preset conditions have been met. A HSRP group or a standby group is a set of routers which communicate using HSRP. An HSRP group has a group MAC address and a group IP address. These are the designated addresses. The active router assumes (i.e. inherits) these group addresses. An HSRP group is identified by a ( ifIndex, cHsrpGrpNumber ) pair. BIA stands for Burned In Address.

MIB content (29 objects)


Cisco Systems, Inc.
Contact info
Cisco Systems Customer Service Postal: 170 W Tasman Drive San Jose, CA 95134 USA Tel: +1 800 553-NETS E-mail:


2010-09-02 00:00
The following changes have been made. [1] Objects cHsrpExtIfTrackedIpNone has been deprecated. [2] Deprecates object group cHsrpExtIfTrackedGroupSup1, which supplementary to cHsrpExtIfTrackedGroup. [3] Added new compliance cHsrpExtComplianceRev2, which deprecates cHsrpExtComplianceRev1.
2010-02-05 00:00
Added cHsrpExtIfTrackedIpNone to cHsrpExtIfTrackedTable Added new table cHsrpExtIfStandbyTable. Added OBJECT-GROUP cHsrpExtIfStandbyGroup91. Added OBJECT-GROUP cHsrpExtIfTrackedGroupSup1, which supplementary to cHsrpExtIfTrackedGroup. Added MODULE-COMPLIANCE cHsrpExtComplianceRev1, which deprecates cHsrpExtCompliance.
2006-02-15 00:00
Updated the imports such that Unsigned32 is imported from SNMPv2-SMI instead of CISCO-TC. Updated the module description. Also updated the descriptions of cHsrpExtIfTrackedEntry and cHsrpExtIfTracked. Formatted the complete MIB.
1998-08-03 00:00
Initial version of this mib.