FYI, I am studying for the CCNA and new to this.

The scenerio, 2 routers R1 and R2. R1 Loopback IP as R2 Loopback IP as Using the loopback IP's as the router ID. I provisioned R1 correctly, R2 is the problem. Instead of, i put it as then added the router and network statement router ospf 1 network area 0

when I do show ip protocols, the router ID is and the IP shows up under IP protocols

I did change the loopback IP to the correct IP of 192.1680.2 did no router ospf 1 and reprovisioned the network statement

The problem is, the old IP is still under the OSPF. How do I get rid of without deleting the router and starting over?

R2#sh ip protocols 

Routing Protocol is "ospf 1"
  Outgoing update filter list for all interfaces is not set 
  Incoming update filter list for all interfaces is not set 
  Router ID
  Number of areas in this router is 2. 2 normal 0 stub 0 nssa
  Maximum path: 4
  Routing for Networks: area 0 area 0
  Routing Information Sources:  
    Gateway         Distance      Last Update          110      00:09:37          110      00:10:00          110      00:48:30
  Distance: (default is 110)
  • Under the OSPF, shut it down and restart it.
    – Ron Maupin
    Sep 20 at 14:46
  • Tried clear ip ospf process on R1 and R2
    – James
    Sep 20 at 14:55
  • Sometimes you need to reboot the router.
    – Ron Trunk
    Sep 20 at 16:31
  • Did you try shutdown and no shutdown under the OSPF router process?
    – Ron Maupin
    Sep 20 at 16:53


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