Thanks for the reply. My question is more topology related. Following your lead (which I have been trying similar strategies, and I believe is correct): So, I would connect the pfSense wan port directly to my ISP provider connection (not a modem, just an ethernet port). The LAN port of pfSense I would have to connect to a switch, so that I could break out 4 of the ips for outfacing computers, and plug the wan port of the router (for internet on my other computers) into the switch also.
I've tried that with a layer-2 switch, with less than satisfactory results. I've ordered a layer-3 switch to try that.
The other thing I've been trying is a switch right off the ISP (as a DMZ switch), and then plug both the router and pfSense into the DMZ switch. That doesn't work either, though this also might work with the layer-3 switch.
Please keep the ideas coming! Thanks!