R3-gns3-lab2

• show running-config

interface FastEthernet0/0
 no ip address
 shutdown
 duplex half
!
interface FastEthernet1/0
 ip address dhcp
 duplex auto
 speed auto
!
interface FastEthernet1/1
 no ip address
 shutdown
 duplex auto
 speed auto
!
interface FastEthernet2/0
 no ip address
 shutdown
 duplex auto
 speed auto
!
interface FastEthernet2/1
 no ip address
 shutdown
 duplex auto
 speed auto
!
interface FastEthernet3/0
 no ip address
 shutdown
 duplex auto
 speed auto
!
interface FastEthernet3/1
 ip address 172.16.0.1 255.255.255.0
 ip ospf 1 area 0
 duplex auto
 speed auto
!
router ospf 1
 router-id 5.6.7.8
 network 24.12.20.0 0.0.0.255 area 0

• show ip ospf neighbor

Neighbor ID     Pri   State           Dead Time   Address         Interface
1.2.3.4           1   FULL/DROTHER    00:00:32    24.12.20.2      FastEthernet1/0
192.168.7.1       1   FULL/DR         00:00:34    24.12.20.21     FastEthernet1/0