Also Posted at WAN switching & routing by mistake. We have two 4506's only doing layer2 and one VlanAnother vlan is requested.We don't want to mess with the WAN router.Is it just a config to add routing and Vlan, or is an upgrade necessary?Below is a...

We have a two 4506's doing layer 2 on single vlan. Another vlan is required.   We don't want to mess with the Wan router.  Prefer not to buy two new layer 3 switches.    Is it just configuration for Vlan and routing, or is an upgrade needed? Current ...