Do you have vlan1, 2 and 3 tagged on your inside physical interface (BGE1) for me of pfsense. If not then you probably won't be able to get this to work. Try doing that, then configure the Dell switch as tagged on all three vlans on the port that connects to the firewall. Then select untagged when connecting to a workstation or server that is not vlan aware. This should fix your issue unless I did not understand your question correctly.
-- Curtis LaMasters http://www.curtis-lamasters.com http://www.builtnetworks.com
