Chapter 12. Configuring and Monitoring NHRP
This chapter describes how to configure and monitor the Next Hop Resolution
Protocol (NHRP). For a description of this protocol, refer to “Next Hop Resolution
Protocol (NHRP) Overview” on page345.
This chapter contains the following sections:
v“Accessing the NHRP Configuration Process”
v“NHRP Configuration Commands”
v“Accessing the NHRP Monitoring Process” on page368
v“NHRP Monitoring Commands” on page 369
v“NHRP Packet Tracing” on page 374

Accessing the NHRP Configuration Process

Toaccess the NHRP configuration:
1. At the operator monitoring prompt (*), type talk 6 and press enter.
2. At the config>prompt, type protocol nhrp and press enter.
3. The NHRP config> prompt is displayed.

NHRP Configuration Commands

This section explains all of the NHRP configuration commands as shown in
Table62. Enter the commands at the NHRP config> prompt.
Table62. NHRP Configuration Command Summary
Command Function
? (Help) Displays all the commands available for this command level or lists the
options for specific commands (if available). See “Getting Help” on page
xxvi.
Enable NHRP Turns on NHRPfor all interfaces that are not explicitly defined.
Disable NHRP Turnsoff NHRP for all interfaces that are not explicitly defined.
List Displays the NHRP configuration.
Advanced
config Gets you to the NHRP Advanced config> prompt, from which you can enter
other commands as described in “NHRPAdvanced Configuration
Commands”on page361.
Exit Returnsyou to the previous command level. See “Exiting a Lower Level
Environment” on page xxvii.

Enable NHRP

Use the enable command to enable NHRP on all interfaces not explicitly defined
using an NHRP advanced config command. It is a simple way to get NHRP up and
running with default parameters.
Syntax:
enable nhrp
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