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 ...

I've got a problem, I've been trying to implement some layer2 security on our switches with Port-Security, only allowing 2 MAC addresses on any 1 switchport. I've been looking at some of our switches ...

Rick Cook learned programming on a computer with magnetic drum memory. Since then he's written thousands of articles on all aspects of computers and high technology — as well as several fantasy novels ...

I manage a small network for my Church (~15 devices), but are looking to segment the network, mostly for security reasons. We run a Radio Station and would like to separate the Radio Systems and the ...

Q: I have a Cisco L3 3560 switch, 5 unmanaged switches and 150 users. I need to create 10 VLANs. How can I configure my VLAN given the switches I have? It depends on how many users you would need in ...