I have a Cisco 2811 router with 2 interfaces on it (f0/0 & f0/1) and I'm trying to get interface f0/1 line protocol up but it won't let. Does anyone know how to get the line protocol on that interface up? I also have a Cisco 3750G 48 port switch and want to know how to get a port on the switch to connect to the router. If you could help me with that also would be greatly appreciated. I'm trying to learn Cisco networking configuration to help me find a better job.