All Cisco routers have two special types of lines, and many Cisco routers have a third. What are these lines, and how do you configure them? These are things that every network admin should know. All ...

Cisco has a free product called Network Assistant. Its a Java-based GUI for doing configuration of switches, and some routers. I'm not sure if it supports the 2800 or not.

With a simulator, there are always missing commands and programming errors, and it can never really be as complete as the real IOS. However, because an emulator runs the IOS, you get every feature ...