Many administrators forget—or don’t even realize—that they can configure Dynamic Host Configuration Protocol (DHCP) on Cisco IOS routers and switches. David Davis discusses the pros and cons of this ...

For this example, we’ll configure the bare minimum to allow you to manage a Cisco router or switch. To do this, we’ll create a community string. Think of a community string as a password for certain ...

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 ...

Just this last week several customers have ironically all asked me the exact same question. “Can we use an Ethernet switch instead of a router for our Internet EBGP peering to our ISP(s)?” While ...