Question
Now I have two routers: A and B. The router A is connected to the Internet, and the router B is connected to the router A. Now can I configure something which makes the router A just offer Internet and the router B the gateway and dhcp?
Background
In practice, the router A is usually part of an advanced DSL modem without flexible interface to configure NAT, firewall, etc. I need take advantage of the router B to do network management.
I'm a layman and a newbie, so maybe I cannot understand technical nomenclatures. I hope the explanation to be elementary enough. Any idea? Thanks!