I'm not sure if I going crazy or not. I try to configure an ospf network:

(conf)#router ospf 1
      #network area 0

I then type show running and it reverts to address. I have no clue on why this is happening. I've also tried it on a new file and on a router that is isolated.

It's probably definitely something silly I've missed...

1 Answer 1


The address is a host address, not a correct network address.

The network address (given that mask) is, which is what the router converts it to.

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