Router>ena
Router#conf t
Enter configuration commands, one per line.  End with CNTL/Z.
Router(config)#hostname Hue
Hue(config)#int s0
Hue(config-if)#ip address 10.0.0.2 255.255.255.252
Hue(config-if)#no shut
%LINK-3-UPDOWN: Interface Serial0, changed state to up
Hue(config-if)#int s1
Hue(config-if)#ip address 11.0.0.1 255.255.255.252
Hue(config-if)#clock rate 64000
Hue(config-if)#no shut
%LINK-3-UPDOWN: Interface Serial1, changed state to up
Hue(config-if)#exit
%LINK-3-UPDOWN: Interface Serial1, changed state to down
%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial1, changed state to down
%LINK-3-UPDOWN: Interface Serial1, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial1, changed state to up
Hue(config)#router ospf 12
Hue(config-router)#network 11.0.0.0 0.0.0.3
                          ^
% Invalid input detected at '^' marker.

Hue(config-router)#network 11.0.0.0 0.0.0.3 area 0
Hue(config-router)#network 10.0.0.0 0.0.0.3 area 0
Hue(config-router)#exit
Hue(config)#^Z
%SYS-5-CONFIG_I: Configured from console by console

Hue#show ip ospf database 

       OSPF Router with ID (11.0.0.1) (Process ID 12)

         Router Link States (Area 0) 

Link ID         ADV Router      Age         Seq#       Checksum Link count
                     0   0x80000003    0x6420 
11.0.0.1        10.0.0.2           0   0x80000005    0x3643 
10.0.0.2        11.0.0.1           0   0x80000009    0x1708 
12.0.0.1        12.0.0.1           0   0x80000002    0x1518