First we can start with changing it on R4:
R4(config)#router ospf 1
Reload or use “clear ip ospf process” command, for this to take effect
So we have to clear the OSPF process in order for this to take effect.
R4#clear ip ospf process
Reset ALL OSPF processes? [no]: y
Ok, we should now have a Router-ID of 188.8.131.52.
R4#sh ip ospf | inc ID
Routing Process “ospf 1″ with ID 184.108.40.206
Good. Time to recheck connectivity.
R4#ping 220.127.116.11 so lo 0
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 18.104.22.168, timeout is 2 seconds:
Packet sent with a source address of 22.214.171.124
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/4 ms
Good, we can still ping R3 from R4. Now, let’s do the same thing on J2.