FeedbackContents
- NHRP MIB
- Finding Feature Information
- Prerequisites for NHRP MIB
- Restrictions for NHRP MIB
- Information About NHRP MIB
- CISCO-NHRP-MIB
- RFC-2677
- How to Use NHRP MIB
- Verifying NHRP MIB Status
- Configuration Examples for NHRP MIB
- Example Verifying NHRP MIB Status
- Example VRF-Aware NHRP MIB Configuration
- Additional References
- Feature Information for NHRP MIB
NHRP MIB
The Cisco NHRP MIB feature introduces support for the NHRP MIB, which helps to manage and monitor the Next Hop Resolution Protocol (NHRP) via Simple Network Management Protocol (SNMP). Statistics can be collected and monitored via standards-based SNMP techniques (get operations) to query objects defined in the NHRP MIB. The NHRP MIB is VRF aware and supports VRF aware queries.
 Note | Security threats, as well as the cryptographic technologies to help protect against them, are constantly changing. For more information about the latest Cisco cryptographic recommendations, see the Next Generation Encryption (NGE) white paper. |
Finding Feature Information
Your software release may not support all the features documented in this module. For the latest caveats and feature information, see Bug Search Tool and the release notes for your platform and software release. To find information about the features documented in this module, and to see a list of the releases in which each feature is supported, see the feature information table at the end of this module.
Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To access Cisco Feature Navigator, go to www.cisco.com/go/cfn. An account on Cisco.com is not required.
Restrictions for NHRP MIB
- Cisco does not support all the MIB variables defined in RFC-2677, Definitions of Managed Objects for the NBMA Next Hop Resolution Protocol (NHRP). For a list of variables supported and other caveats of this feature, see the Agent Capabilities file. Cisco does not support the set operations defined in RFC-2677.
Information About NHRP MIB
CISCO-NHRP-MIB
CISCO-NHRP-MIB provides NHRP MIB information on managed objects relating to clients only, servers only, and clients and servers.
The NHRP MIB module contains ten tables of objects as follows:
- NHRP Cache Table
- NHRP Purge Request Table
- NHRP Client Table
- NHRP Client Registration Table
- NHRP Client NHS Table
- NHRP Client Statistics Table
- NHRP Server Table
- NHRP Server Cache Table
- NHRP Server NHC Table
- NHRP Server Statistics Table
The Cisco implementation supports all of the tables except the NHRP Purge Request Table.
How to Use NHRP MIB
No special configuration is needed for this feature. The SNMP framework can be used to manage NHRP MIB. See the section "Configuration Examples for NHRP MIB" for an example of how to manage a VRF aware NHRP MIB.
Configuration Examples for NHRP MIB
Example Verifying NHRP MIB Status
The following output is from the show snmp mib nhrp status command:
Spoke_103# show snmp mib nhrp status NHRP-SNMP Agent Feature: Enabled NHRP-SNMP Tree State: Good ListEnqueue Count = 0 Node Malloc Counts = 1 Spoke_103#
The "Enabled" status of "NHRP-SNMP Agent Feature:" indicates that the NHRP MIB is enabled. If the NHRP MIB was disabled, it would display "Disabled". "ListEnqueue Count" and "Node Malloc Counts" counts are internal counts. "ListEnqueue Count" indicates how many nodes are queued for freeing. "Node Malloc Counts" displays how many nodes are allocated.
Example VRF-Aware NHRP MIB Configuration
The following is an example of how to configure a VRF Table with the name V3red, for monitoring by SNMP:
ip vrf V3red rd 198102 ! Name of the SNMP VPN context context V3red_context ! crypto isakmp policy 1 encr aes authentication pre-share group 14 crypto isakmp key cisco47 address 0.0.0.0 ! crypto ipsec transform-set trans2 esp-aes esp-sha-hmac ! crypto ipsec profile vpnprof set transform-set trans2 ! interface Tunnel0 bandwidth 1000 ! DMVPN tunnel for V3red VPN ip vrf forwarding V3red ip address 10.0.0.1 255.255.255.0 ip mtu 1400 ip nhrp authentication donttell ip nhrp map multicast dynamic ip nhrp network-id 99 ip nhrp holdtime 300 no ip split-horizon eigrp 1 ip tcp adjust-mss 1360 delay 1000 tunnel source Ethernet0 tunnel mode gre multipoint tunnel key 100000 tunnel protection ipsec profile vpnprof ! interface Ethernet0 ip address 172.17.0.1 255.255.255.0 ! interface Ethernet1 ip address 192.168.0.1 255.255.255.0 ! router eigrp 1 address-family ipv4 vrf V3red network 10.0.0.0 0.0.0.255 network 192.168.0.0 0.0.0.255 no auto-summary autonomous-system 1 exit-address-family ! ! V2C Community ABC for VRF V3red snmp-server group abc v2c context V3red_context read view_V3 snmp-server view view_V3 iso included snmp-server community abc RO snmp-server community public RO snmp-server context V3red_context ! ! snmp mib community-map abc context V3red_context Spoke Configuration for DMVPN Example crypto isakmp policy 1 encr aes authentication pre-share group 14 crypto isakmp key cisco47 address 0.0.0.0 ! crypto ipsec transform-set trans2 esp-aes esp-sha-hmac ! crypto ipsec profile vpnprof set transform-set trans2 ! interface Tunnel0 bandwidth 1000 ip address 10.0.0.2 255.255.255.0 ip mtu 1400 ip nhrp authentication donttell ip nhrp map 10.0.0.1 172.17.0.1 ip nhrp map multicast 172.17.0.1 ip nhrp network-id 99 ip nhrp holdtime 300 ip nhrp nhs 10.0.0.1 ip tcp adjust-mss 1360 delay 1000 tunnel source Ethernet0 tunnel mode gre multipoint tunnel key 100000 tunnel protection ipsec profile vpnprof ! interface Ethernet0 ip address dhcp hostname Spoke1 ! interface Ethernet1 ip address 192.168.1.1 255.255.255.0 ! router eigrp 1 network 10.0.0.0 0.0.0.255 network 192.168.1.0 0.0.0.255
Additional References
Related Documents
MIBs
Technical Assistance
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Feature Information for NHRP MIB
The following table provides release information about the feature or features described in this module. This table lists only the software release that introduced support for a given feature in a given software release train. Unless noted otherwise, subsequent releases of that software release train also support that feature.
Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To access Cisco Feature Navigator, go to www.cisco.com/go/cfn. An account on Cisco.com is not required.
| Table 1 | Feature Information for NHRP MIB |
|
Feature Name |
Releases |
Feature Information |
|---|---|---|
|
NHRP MIB |
12.4(20)T |
The Cisco NHRP MIB feature introduces support for the NHRP MIB, which helps to manage and monitor Next Hop Resolution Protocol (NHRP) via Simple Network Management Protocol (SNMP). Statistics can be collected and monitored via standards-based SNMP techniques (get operations) to query objects defined in the NHRP MIB. The following commands were introduced or modified: debug snmp mib nhrp, show snmp mib nhrp status. |
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Any Internet Protocol (IP) addresses and phone numbers used in this document are not intended to be actual addresses and phone numbers. Any examples, command display output, network topology diagrams, and other figures included in the document are shown for illustrative purposes only. Any use of actual IP addresses or phone numbers in illustrative content is unintentional and coincidental.