10.2.6 Restricting the Destination of RIP Packets

Set up the Switch to send route advertisements to specific neighboring routers by using unicast routing.

Points to note

The example below shows how to use the neighbor command to send route advertisements to a specific neighboring router.

Before using the neighbor command, use the passive-interface command to suppress the broadcast (or multicast) of advertisements via the interface.

Figure 10-15: Restricting the Destination of RIP Packets

Command examples

1. (config)# router rip

   (config-router)# network 192.168.1.0 0.0.0.255

   (config-router)# network 192.168.2.0 0.0.0.255

   (config-router)# passive-interface vlan 20

   Suppresses transmission of RIP packets via interface vlan 20.

2. (config-router)# neighbor 192.168.1.17

   Specifies that route advertisements are to be sent to neighboring router 192.168.1.17 by unicast routing.