Will it support multiple static IP Addresses?

I have a an office with 5 static ip addresses. I use an old Airport router but the Comcast technician said we were losing bandwidth because he said our router only supports 1 static ip and all of our devices are on it. He suggested replacing it with a "Rocket Wireless Router" that he says will automatically switch between the 5 static ip's allowing maximum upload and download speeds.

Will the newer Apple Routers provide similar support for multiple Static IP's?

AirPort Extreme

AirPort Extreme

Product No Longer Available

No Answers have been submitted