Did you configure: router-id 10.68.0.65
under the OSPF process, AFTER the router had decided on 10.68.63.129 being the OSPF RID? (highest active loopback int/highest active physical int etc)? If you have active ospf adjacencies, the manually set router id of 10.68.0.65 will only take effect AFTER you clear ip ospf process or reboot router eg. Router IDs are not local to a router, they need to be unique within the OSPF domain. One of my blog posts regarding OSPF RID selection process may help you understand how OSPF Router IDs are selected: http://roy.ccieblog.com/2009/01/04/understanding-the-ospf-rid-selection-process/ Hope this helps. On Wed, Feb 4, 2009 at 9:02 AM, Rick Wood <[email protected]> wrote: > Guys, > > Ospf router IDs are local to the router. (My assumption). > > However should there every be a scenario where the router ID learned under > a particular interface is not local to the router. > > See below. > > 10.68.63.129 is from a connected router, but not the directly connected > network. > > router ospf 10 > router-id 10.68.0.65 > log-adjacency-changes > auto-cost reference-bandwidth 10000 > redistribute static subnets route-map redis-statics-routemap > redistribute ospf 65485 subnets route-map NEON_TO_DCLAN > redistribute bgp 65399 subnets route-map ITC_DCLAN > network 10.68.0.65 0.0.0.0 area 0 > network 10.68.63.80 0.0.0.3 area 0 > network 10.68.63.88 0.0.0.3 area 0 > network 10.68.63.96 0.0.0.3 area 0 > network 10.68.63.100 0.0.0.3 area 0 > network 10.68.63.104 0.0.0.3 area 0 > network 10.68.63.137 0.0.0.0 area 0 > network 10.68.191.106 0.0.0.0 area 0 > distance 111 > > > TenGigabitEthernet9/2.4002 is up, line protocol is up (connected) > Internet Address 10.68.63.137/30, Area 0 > Process ID 10, Router ID 10.68.63.129, Network Type BROADCAST, Cost: 100 > Transmit Delay is 1 sec, State BDR, Priority 1 > Designated Router (ID) 10.68.128.1, Interface address 10.68.63.138 > Backup Designated router (ID) 10.68.63.129, Interface address > 10.68.63.137 > Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5 > oob-resync timeout 40 > > TenGigabitEthernet8/2 is up, line protocol is up (connected) > Internet Address 10.68.191.106/30, Area 0 > Process ID 10, Router ID 10.68.63.129, Network Type POINT_TO_POINT, > Cost: 1 > Transmit Delay is 1 sec, State POINT_TO_POINT > Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5 > oob-resync timeout 40 > > Any ideas. > > Regards > Rick > > -- Regards Roy
