We have a Cisco Catalyst 6513 switch. I need to keep a small network of about 30 computers separate from the main network of 500, but still have the 30 use the same gateway (our SonicWall) for ...

I've got a customer with a Dell switch (power connect 6248 I think) with 3 uplinks to my network. The uplinks are separate layer 3 links, each one being a separate IP block in a separate VLAN on my ...

Do you like puzzles? Are you working towards CCNA, or the CCNP Switch exam? If so, today’s post can be an interesting challenge to help you review switch VLAN configuration, with a short lab exercise ...

A Cisco switch configured as an access layer port with a voice vlan is actually an 802.1Q trunk that will only allow traffic tagged on the voice vlan. The last exception is very seldom used, but does ...

VLANs break a physical LAN into several logical broadcast domains. Each LAN station hears traffic sent by its own VLAN but receives nothing from stations in other VLANs -- not even from those ...