R4#sh run
Building configuration...

Current configuration:
!
version 12.0
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname R4
!
!
!
!
!
!
ip subnet-zero
ip tcp synwait-time 5
no ip domain-lookup
!
ip audit notify log
ip audit po max-events 100
cns event-service server
!
!
!
!
voice-port 1/0/0
!
voice-port 1/0/1
!
!
!
!
interface Ethernet0/0
 ip address 161.3.33.1 255.255.255.0
 no ip directed-broadcast
 ip mobile arp
 bridge-group 1
!

interface Serial0/0
 no ip address
 no ip directed-broadcast
 no ip mroute-cache
 shutdown
 no fair-queue
!
interface Ethernet0/1
 ip address 54.254.1.3 255.255.255.0
 no ip directed-broadcast
 ip mobile arp
 bridge-group 1
!
interface Serial0/1
 no ip address
 no ip directed-broadcast
 shutdown
!
router eigrp 3
 redistribute mobile metric 100000 1000 255 1 1500
 network 54.0.0.0
 network 161.3.0.0
 network 202.21.3.0
!
ip classless
no ip http server
!
!
!
!
!
!
!
bridge 1 protocol ieee
 bridge 1 route ip
bridge 1 address 0000.0123.1234 discard
bridge 1 forward-time 30
bridge 1 hello-time 3
!
line con 0
 exec-timeout 0 0
 privilege level 15
 logging synchronous
 transport input none
line aux 0
line vty 0 4
 privilege level 15
 no login
!
end

R4#