Motorola MG7550 User Manual page 34

5.) To specify a RIP unicast destination IP address, enter the IP address and subnet
mask.
To enable the CMTS for RIPv2 with MD-5 authentication (Cisco uBR example shown
below):
1.) The following steps go through configuring RIPv2 for a Cisco CMTS. The network
number used in this configuration will vary from network to network so use the
network number that matches your set-up.
7223#configure terminal
7223(config)#key chain ubr
7223(config-keychain)#key 1
7223(config-keychain-key)#key-str BRCMV2
7223(config-keychain-key)#exit
7223(config-keychain)#exit
7223(config)#router rip
7223(config-router)#ver 2
7223(config-router)#no validate-update
7223(config-router)#passive-interface cable 2/0
7223(config-router)#network 10.0.0.0
7223(config-router)#exit
7223(config)#inter cable 2/0
7223(config-if)#ip rip receive ver 2
7223(config-if)#ip rip authentication mode md5
7223(config-if)#ip rip authentication key-chain ubr
7223(config-if)#exit
7223(config)#exit
In this example, we have named the key chain 'ubr'. This was chosen arbitrarily. You
can use any name you like as long as you specify the correct name when specifying
which key chain to use for RIPv2 authentication.
2.) The next step is enable RIP debugging to ensure that the CMTS is receiving and
authenticating messages from the residential gateway.
7223#debug ip rip
RIP protocol debugging is on
MG7550 Cable Modem User Manual
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