Cisco ASA 5500 – Sub Interfaces and VLANS
Nov17

Cisco ASA 5500 – Sub Interfaces and VLANS

KB ID 0001085  Problem You can take the physical interface of a Cisco ASA firewall, (or an ether channel) and split it down into further sub-interfaces. This way you can set multiple VLANs to use this interface as a gateway at the same time whilst still separating the traffic. In this scenario I’m going to have two VLANs, one for my wired clients, and one for a ‘Guest WiFi’ that I’m setting up. I want the guest...

Read More
Replace an ASA 5505 with an ASA 5506-X
Nov17

Replace an ASA 5505 with an ASA 5506-X

KB ID 0001091  Problem Given the amount of ASA work I do it’s surprising that the first time I saw an ASA 5506-X was last week (I’ve been working on larger firewalls for a while). I’m probably going to have to do a few of these over the next couple of years so I’ll update this article as things surface. Solution Q: Can I just copy the config from an ASA 5505 to an ASA 5506-X? A: No, that would be nice, truth be...

Read More