Enable RIP Security

1. Enter the configuration mode for the router.

   SEFOS# configure terminal
   SEFOS(config)# router rip
   

2. Enable RIP security in switch 1.

   SEFOS(config-router)# network 10.0.0.1
   SEFOS(config-router)# ip rip security minimum
   SEFOS(config-router)# exit