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 ...

I don't personally like to use VLANs as a security border, but the risk is pretty durn low in the environment you describe. Assuming that the equipment is all physically secured, and you are happy ...

There are thousands of commands and subcommands available to configure a Cisco Adaptive Security Appliance, and as you gain knowledge of the appliance, you will find yourself using more and more of ...