It's time to get specific about your addresses.

In the last Byte-Sized Lesson, we looked at Layer 2 switches. Now, we’ll consider the function of a router and what happens when Layer 3—the Network Layer—relays packets. If your facility’s ...

Previous articles (Part one, Part two) in this series on implementing VPN gateways using Cisco routers discussed the IPsec protocol and basic IPsec VPN connection models. Now we'll learn how to ...

Routers accept data packets and forward them to a list of destinations it knows about. These destinations can be other routers, or the intended destination of a computer communicating through the ...

90+% of Cisco Router administrators are CLI jockeys, myself included. However, there are several GUI tools that can help you manage and secure your Cisco routers very quickly. The one I want to focus ...