I have two 1700 routers. I was wondering if I can just hook the two 1700 routers directly to my laptop via a usb port and do some two router labs? I may need an adapter that connects the console cable to the usb port. Someone was telling me that I need to have two computers for this lab setup but I dont think so. A friend of mine said you can create loopback interfaces and he just used two routers and his laptop to get his CCNA. I just wanted to know what you think.