Ok, as some of you may know I am currently taking a CISCO networking course, I am in my 2nd semister, configuring Routers and learning about WANS. So far everything is great, but a question was posed by one of the students, and the student was very one way about his interpretation of what he read. Here is my question I need double checked....I have learned that WANS operate at the physical and data link layers. Ok, no prob. Now routers work at the network layer, because they make decisions based on IP addresses. Are routers considered a WAN device....or just a piece of network hardware that interfaces with WANS?? The student is hung up with saying that a router is a WAN device, but the text is wrong because routers work at layer 3, and WANs work at layer 1 & 2. So which is it?? Thanks for clarification.