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RIP Redistribution Configuring RIP

page 16-12 OmniSwitch 6800/6850/9000 Network Configuration Guide June 2006

Creating a Redistribution Filter

Use the ip rip redist-filter command to create a RIP redistribution filter. Enter the command, the route

type, and the destination IP address and mask of the traffic you want to redistribute. Only routes matching

the policy and destination specified in the filter will be redistributed into the RIP and passed to the destina-

tion. For example, to redistribute OSPF routes destined for the 10.0.0.0 network you would enter:

-> ip rip redist-filter ospf 10.0.0.0 255.0.0.0

Note. A network/subnetwork of 0.0.0.0. 0.0.0.0 will redistribute all routes for the configured route type.

Use the no ip rip redist-filter command to delete a filter. For example, to “turn off” redistribution for

OSPF routes to the 10.0.0.0 network you would enter:

-> no ip rip redist-filter ospf 10.0.0.0 255.0.0.0

Use the show ip rip redist-filter command to display the currently configured redistribution filters.

Note. Local interfaces will not be added to the RIP routing table unless RIP redistribution is enabled and a

filter is added for the local protocol.

Configuring a Redistribution Filter Action

By default, redistribution filters allow (permit) routes that match the criteria specified in the filter to be

redistributed. However, you can use the redistribution filter action feature to “fine-tune” a filter. You may

want to redistribute all routes to a network except routes destined for a particular subnet. In this case, you

would “permit” all traffic to the network but “deny” traffic to a particular subnet.

Use the ip rip redist-filter effect command to configure the redistribution filter action. Enter the

command, specify the route type to be redistributed, enter the destination IP address/mask, and then enter

whether to permit redistribution (permit) or deny redistribution (deny).

For example, if you wanted to redistribute all OSPF routes to the 172.22.0.0 network except routes to

subnetwork 3 you would use the following commands:

-> ip rip redist-filter ospf 172.22.0.0 255.255.0.0 effect permit

-> ip rip redist-filter ospf 172.22.3.0 255.255.255.0 effect deny

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