NAT (Network Address Translation) CISCO

Nurjaman(config)#ip name-server 10.10.10.100
Nurjaman(config)#access-list 1 permit 20.20.20.0 0.0.0.255
Nurjaman(config)#ip nat inside source list 1 interface fastEthernet 0/0 overload
Nurjaman(config)#interface fastEthernet 0/0
Nurjaman(config-if)#ip nat outside
Nurjaman(config-if)#exit
Nurjaman(config)#interface fastEthernet 0/1
Nurjaman(config-if)#ip nat inside
Nurjaman#write