I have a Catalyst 3550 and I am trying to connect 40 different offices in our executive suite building. They all require security so I decided to VLAN them all. The internet will be comming into an ISP managed Cisco 2611 and from there into a firewall. From the firewall to the 3550. The firewall does not support trunking so I was hoping to trunk to a port on the 3550 then uplink to the firewall. I have the VLANs set up and trunking on port 47. Port 48 is uplinked to the firewall. I cannot seem to get out. The VLAN seems to function fine but not internet. Is my thought process wrong? Will this not work? Will I need a firewall that supports trunking?