When I try to enter the command to set up a vlan (config# int vlan XX) the vlan is marked with ^ as invalid. I need to set up a Vlan on th einside and the other on the outside. What's the problem? Also, the ASA 5510 is setup as a L3 (router).
Do I have to setup the vlan using a subnet of an existing ethernet interface? I have two defined:
ip address xxx.xxx.xxx.xxx 255.255.255.252
ip address yyy.yyy.yyy.yyy 255.255.255.0