!
version 12.1
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname Router_A
!
enable password cisco
!
ip subnet-zero
!
interface Serial0
ip address 10.1.1.1 255.255.255.0
ip nat outside
clockrate 64000
!
interface Serial1
no ip address
shutdown
!
interface FastEthernet0
ip address 172.16.1.1 255.255.0.0
ip nat inside
speed auto
!
ip nat pool DNAT 200.1.1.1 200.1.1.10 netmask 255.255.255.0
ip nat inside source list 1 pool DNAT
ip classless
no ip http server
!
access-list 1 permit 172.16.1.0 0.0.0.255
!
line con 0
transport input none
line aux 0
line vty 0 4
password cisco
login
!
no scheduler allocate
end