hi .. i just purchased a 1605 router with IOS ver 11.2 and i want to connect it behind my adsl modem. how do i set the interface to be dhcp so i can receive an ip address from my ISP. or can i just statically enter it in? i was doing some research and it seems that i may need to upgrade to 12.2 to do dhcp stuff. is this true? can i suffice with 11.2? any suggestions would be great. thanks