Weeee, we're ready to rock and roll :D Test servers, clients, wifi points etc all working exactly as they should. Only "unknown" is when we go live and have to introduce the firewall into the equation but that's just a case of adding the default route to it from both the core switches.
Now the only obstacle is staff - needing to get this live over Easter when just about everyone suddenly has a million reports to do. Gordon Bennett, however did anyone cope beforehand.
To be honest the switchover itself was fairly painless for me last year - once a VLAN was set up, it was just a case of untag a (range of) port(s), shut, undo shut, done. But I moved from a single /20 range into a series of /24 and /25 ranges in the /20 next door - i.e. from 176.0/20 to 192.0/20 - so it was easy to do step by step without disrupting anything on the original range.
I think the only real problem I had was explaining patiently to my ISP half a dozen times that please can they allow traffic from the 192.0/20 range through the firewall as well please. Not sure why that was so difficult.
Remember you will need to add static routes back to the vlans on the firewall, it will already have a default gateway.
Originally Posted by synaesthesia