[44net] IPIP with pfSense Firewalls

I have set up a new firewall for my network, and am wanting to use it to also perform either the encap.txt updates, or even a few isolated IPIP tunnels to get my connections back to the 44/8 network. Is anyone else running pfSense to do this? I would be interested in some help in making this work. Screenshots, a write up.. Anything!!!

I'll explore it more today for a bit, but I'm still baffled by some of the way pfSense does things and still trying to figure it out.

Thanks for any help you can offer!