By default if it sees your assigned public IP addresses on it's "LAN" side it just switches to bridge mode and acts as a modem only (although you can still get to it's management page).

DHCP is fine, unless you're looking to perform advanced networking tasks. Here's how to set a Static IP address (or DHCP reservation) for any device on your network.

So my home router (not the Comcast router/modem) will essentially "use up" one of my static addresses? That makes sense and sounds almost exactly like a normal dynamic ip address setup.

A static IP address gives a fixed address to your computer on the local network at your business. Port forwarding is used by computers on the Internet to connect to a specific device on your ...

Checking your computer's IP address every time you need it can get tedious. Here's how to set up DHCP reservations on your router so that each compute ...

IPv6 offers several ways that aren’t possible in IPv4 to assign IP addresses, and DNS set-up has differences as well.