RIP Updates ignored in 2501 Lab 1

[norteldude78]

I am studying for my CCNA and I have setup a lab with 2 2501 routers. I am having trouble getting RIP to update routing tables. This is from RIP debugging, notice the last line:

RIP: sending v1 update to 203.20.20.2 via Serial1 (203.20.20.1)
network 192.168.14.0, metric 1
RIP: Update contains 1 routes
RIP: Update queued
RIP: Update sent via Serial1
RIP: ignored v1 packet from 203.20.20.2 (not enabled on Serial1)

Here is my config, cut short for brevity:

version 11.1
service udp-small-servers
service tcp-small-servers

interface Ethernet0
ip address 192.168.14.1 255.255.255.0
no ip mroute-cache

interface Serial1
ip address 203.20.20.1 255.255.255.0
ip rip receive version 1
no ip mroute-cache
encapsulation ppp
no ip split-horizon
clockrate 56000

router rip
passive-interface Ethernet0
network 192.168.14.0
neighbor 203.20.20.2

It's basically the same on both routers, I can ping each routers interface but of course my ethernet routes are not in the routing table. I put the rip neighbor commands in last, thinking that would force an update, but now it just says "ignored" in debug messages. Split-horizon setting doesnt matter, it was disabled in this capture.

Thanks for your help. I know I'm missing something.





peace

 

[jneiberger]

The RIP "network" statement tells the router which interfaces you want to participate in the routing protocol. You have no network statement corresponding to your serial interface. Add "network 203.20.20.0" to your RIP config and see if that makes a difference.

 

[norteldude78]

Thanks! It worked. I thought since they were directly connected, 203.20.20.1 (router1) and 203.20.20.2 (router2) that I wouldnt need to add them, but....thanks again

peace

 

[jneiberger]

As you discovered, even if they're directly connected, you still must specify which interfaces will participate in the routing protocol.