David Davis introduces the Archive command in Cisco, which you can configure to log all commands on your router. If you need to back up to a previous configuration, or see what went wrong after a ...

Hi, I need some help understanding the VPN setup on a Cisco 800 series router that we use to communicate with one of our clients. If possible I would like to move this VPN from the Cisco box to an ...

David Davis describes the fundamentals of router security through a list of his top five best practices. He has also hand-picked resources that will give you further details on properly securing your ...

Do you need two routers to practice routing commands for CCNA? Or do you really need 3 – or even 4? Likewise for CCNP, or one of the CCNA concentrations? And what topology do you need to use – which ...

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 ...