Verifying RIP
The following commands in Table 3.14 are used for the verification of RIP routing.
The show ip protocols Command
The show ip protocols command shows you the routing protocols that are configured on
your router. Looking at the following output, you can see that RIP is running on the router and
the timers that RIP uses:
R3#sh ip protocols
Routing Protocol is "rip"
Outgoing update filter list for all interfaces is not set
Incoming update filter list for all interfaces is not set
Sending updates every 30 seconds, next due in 24 seconds
Invalid after 180 seconds, hold down 180, flushed after 240
Redistributing: rip
Default version control: send version 1, receive version 1
TABLE 3 . 1 4 Verifying RIP
Command Meaning
show ip route Displays the routers routing table
show ip protocols Displays the routing protocols and interfaces used with all routing
protocols configured on your router
debug ip rip Show rip updates being sent and received on your router
Interface Send Recv Triggered RIP Key-chain
FastEthernet0/1 1 1
Serial0/0/1 1 1
Automatic network summarization is not in effect
Maximum path: 4
Routing for Networks:
10.0.0.0
Passive Interface(s):
FastEthernet0/0
Serial0/0/0
Routing Information Sources:
Gateway Distance Last Update
10.1.11.2 120 00:00:10
10.1.5.1 120 00:00:22
Distance: (default is 120)
Let’s discuss what the above output provides to us:
RIP is sending updates every 30 seconds, which is the default.
The timers used in distance vector are also shown.
Notice further down that RIP is routing for directly connected interfaces f0/1 and s0/0/0.
To the right of the interfaces are the version listed—RIPv1.
F0/0 and s0/0/0 are listed as passive interfaces (they will not send RIP information out).
The neighbors it found are 10.1.11.2 and 10.1.5.1. The last entry is the default AD for
RIP (120).