hostname R1 ip domain list ciscoworldtour.com ip name-server 208.67.222.222 ip name-server 208.67.220.220 interface GigabitEthernet0/0 description Connection to ISP ip address 192.168.1.242 255.255.255.0 ip default-gateway 192.168.1.1 ip route 0.0.0.0 0.0.0.0 GigabitEthernet0/0 192.168.1.1