We have a basic Linksys wireless router using a cable modem for home internet access, and want to isolate two of the hosts on our home network from dangerous traffic coming from the other three devices (two computers & a wireless I-Pad). I was going to use another router to accomplish this, but most of what I am reading about this is confusing. Do I need three routers, or two routers to accomplish this. I need two distinct networks using basic routers if possible. And how do I configure them generally speaking. Thank you.