Yes; to function properly (with the IP protocol), each router interface (or port) must have its own IP address. Also note that each port is in a different network.
I'm assuming you use windows, and the router is up and running and in use. If these are both true, type "ipconfig" from the command prompt. This will show up: Windows IP Configuration Ethernet...
In Windows, Start > Run > cmd (enter). In the command prompt, enter "ipconfig". The "Default gateway" IP address is the router.In Linux, open a terminal window, enter "netstat -r". The gateway...
Go to the manufacturers web site and look for their support area and it will give you all kinds of information. If you have Windows, in the Start/Run menu, type in ipconfig and look around the...