Enable the RIP Passive Interface

1. On switch 1, enter the configuration mode for the router.

   SEFOS# configure terminal
   SEFOS(config)# router rip
   SEFOS(config-router)# network 10.0.0.1
   

2. Enable the passive interface for VLAN 1.

   SEFOS(config-router)# passive-interface vlan 1
   SEFOS(config-router)# exit
   

3. Review the passive interface configuration information.

   SEFOS# show ip rip statistics
    
   RIP Global Statistics:
   ----------------------
    Total number of route changes is 0
    Total number of queries responded is 0
    Total number of dropped packets is 0
    
   RIP Interface Statistics:
   -------------------------
   Interface   Periodic      BadRoutes   Triggered      BadPackets   Admin
   IP Address  Updates Sent  Received    Updates Sent   Received     Status
    
   ----------- ------------  ---------   ------------   ----------   ------
   10.0.0.1        0            0            0              0        Passive
   

   No routing updates are sent over the passive interface (VLAN 1).