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Chapter 16: Dynamic Routing Protocols

STANDARD Revision 1.0 C4® CMTS Release 8.3 User Guide

To remove a key chain and all its keys:

configure key chain <key chain name> no

2. Enable MD5 digest authentication with multiple keys for a given interface:

configure interface {cable-mac <mac> | gigabitethernet <slot>/<port> | tengigabitethernet

<slot>/<port>} ip rip authentication mode md5

3. Enable the key chain (created in step 1) on the same interface:

configure interface {cable-mac <mac> | gigabitethernet <slot>/<port> | tengigabitethernet

<slot>/<port>} ip rip authentication key-chain <keychain1>

Where: keychain1 is the name of the key chain to use.

Note: The key chain can be up to 16 characters long and determines which key is used for sending and receiving.

4. Confirm that the interface is set-up for MD5 digest authentication:

show ip rip

The output should look similar to the following:

VRF Status

default enabled

RIP Interfaces

Interface VRF Df Met Auth Mode State

10.62.1.2 default 0 text active

RIP Timers

VRF default: Update interval is set to 30 seconds.

VRF default: Route invalidation interval is set to 180 seconds.

VRF default: Route flush interval is set to 120 seconds.

5. If desired, remove the keychain/interface assignment:

configure interface {cable-mac <mac> | gigabitethernet <slot>/<port> | tengigabitethernet

<slot>/<port>} ip rip authentication key-chain <keychain1> no

6. If desired, disable MD5 authentication:

configure interface {cable-mac <mac> | gigabitethernet <slot>/<port> | tengigabitethernet

<slot>/<port>} ip rip authentication mode md5 no

Note: If you configure both single key and key chain authentication, only the key chain is used. Because of this, only the

key chain CLI command will appear in the running-config output.

Arris C4C User Manual

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