router OSPooF...

no router OSPF 0...

a router cannot have a process id of  0
area 0 - good; process id 0 -  HULK SMASH...

good router process-id:

router ospf 1
 log-adjacency-changes
 network 1.1.1.1 0.0.0.0 area 0
 network 10.0.20.0 0.0.0.255 area 0
 network 10.0.30.0 0.0.0.255 area 0
 network 192.168.1.0 0.0.0.255 area 0

bad router process id:

r2620_01(config)#router ospf 0
                                              ^
% Invalid input detected at '^' marker.

r2620_01(config)#

good router process-id

r2620_01(config)#router ospf ?
  <1-65535>  Process ID

r2620_01(config)#router ospf

can you say what is 2^16-1?

sh ip protozoan...

note: the process id for router 1 is 1
the router id is the lo0 1.1.1.1
the networks are the directly connected networks, 1 loopback, 10 and 11 are serials and 192 is fa0/0 to the 3550
and the gateways are all 4 loopbacks
the administrative distance is 110...
that's why i had to whack eigrp

r2620_01#sh ip proto

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 1.1.1.1
Number of areas in this router is 1. 1 normal 0 stub 0 nssa
Maximum path: 4
Routing for Networks:
1.1.1.0 0.0.0.255 area 0
10.0.0.0 0.0.0.255 area 0
11.0.0.0 0.0.0.255 area 0
192.168.1.0 0.0.0.255 area 0
Reference bandwidth unit is 100 mbps
Routing Information Sources:
Gateway Distance Last Update
3.3.3.3 110 00:53:34
2.2.2.2 110 00:53:34
1.1.1.1 110 00:58:40
100.0.0.1 110 00:50:08
Distance: (default is 110)
r2620_01#