We have a 3845 router with a C3845-ADVIPSERVICESK9-M 12.4(17) IOS.
For some reason, I need to change OSPF network type from broadcast to nonboradcast on a GigaEthernet port, and I put the following commands under GigaEthernet0/0 interface.
ip ospf network non-broadcast
ip ospf hello-interval 10
ip ospf priority 0
and also put "neighbor <neighbour ip add>" under OSPF process configuration.
But when I do "show running-config", the "neighbor <neighbour ip add>" command is disappeared from the router's configuration magically,even I reboot the 3845 router, still no way to let it appear, but anyways,the OSPF adjency with this neighbour can be successfully established.
Is there somebody can give me some idea ?