enable
config t
!
hostname LAB-B
!
no ip domain lookup
enable secret class
enable password cisco
!
ip host LAB-A 201.100.11.1 205.7.5.1 192.5.5.1
ip host LAB-B 199.6.13.1 201.100.11.2 219.17.100.1
ip host LAB-C 199.6.13.2 204.204.7.1 223.8.151.1
ip host LAB-D 204.204.7.2 210.93.105.1
ip host LAB-E 210.93.105.2
!
ip dhcp excluded-address 219.17.100.1 219.17.100.2
ip dhcp pool DHCP-B
   network 219.17.100.0 255.255.255.0
   default-router 219.17.100.1 
exit
!
interface Ethernet0
 ip address 219.17.100.1 255.255.255.0
 no shutdown
exit
!
interface Serial0
 ip address 199.6.13.1 255.255.255.0
 clockrate 56000
 no shutdown
exit
!
interface Serial1
 ip address 201.100.11.2 255.255.255.0
 no shutdown
exit
!
router rip
 network 199.6.13.0
 network 201.100.11.0
 network 219.17.100.0
exit
!
ip http server
!
line con 0
 password cisco
 login
line aux 0
line vty 0 4
 password cisco
 login
end
copy run start