I have never used 5505 I gave used higher firewalls and all of them can do sub interfaces normally we make sub interfaces and vlans are assigned to them I m trying to config 5505 can someone tell me how I can create sub interfaces ? As I saw few config and it seems that you config vlans like switch ??? Secondly all interfaces have to b part of vlan ? Ie outside which is g0/0 ....can I config it as normall routed port ?