Enable Authentication on Both Switches

This task tests the authentication.

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

   SEFOS# config terminal
   SEFOS(config)# router rip
   SEFOS(config-router)# network 10.0.0.1
   SEFOS(config-router)# redistribute all
   SEFOS(config-router)# exit
   

2. Enable md5 authentication.

   SEFOS(config)# interface vlan 1
   SEFOS(config-if)# ip rip authentication mode md5 key-chain 12345
   SEFOS(config-if)# end
   

3. On switch 2, enter the configuration mode for the router.

   SEFOS# configure terminal
   SEFOS(config)# router rip
   SEFOS(config-router)# network 10.0.0.2
   SEFOS(config-router)# exit
   

4. Enable md5 authentication.

   SEFOS(config)# interface vlan 1
   SEFOS(config-if)# ip rip authentication mode md5 key-chain 12345
   SEFOS(config-if)# end
   

5. Review the authentication type in switch 1.

   SEFOS# show ip protocols
    
   Routing Protocol is rip
    
   Vrf  default
    RIP2 security level is Maximum
    Redistributing : rip
    Output Delay is disabled
    Retransmission timeout interval is 5 seconds
    Number of retransmission retries is 36
    Default metric is 3
    Auto-Summarisation of routes is enabled
    Routing for Networks :
      10.0.0.0
    Routing Information Sources :
    Interface Specific Address Summarization :
    Trusted Neighors :
    Interface vlan1
     Sending updates every 30 seconds
     Invalid after 180 seconds
     Flushed after 120 seconds
     Send version is 1 2, receive version is 1 2
     Authentication type is md5
     Split Horizon with poissoned reverse is enabled
     Restrcts default route installation
      Restricts default route origination
   

   On switch 2, ensure that all of the RIP packets have authentication information.