hostname R3
!
ip domain lookup
ip name-server 10.10.10.1
!
interface FastEthernet0/0
 ip address 10.10.20.1 255.255.255.0
 duplex auto
 speed auto
 no shutdown
!
ip route 10.10.10.0 255.255.255.0 10.10.20.2
!
line con 0
 exec-timeout 30 0
!
end