Lan AND Internet server possible??

[Gossamer]

I have set up a LAN server with minilogin (not going through EQEMU servers, all done locally) on another comp and have successfully got everything up and running. I can connect, create chars, play, everything. What I would like to do is be able to say go to a friends house and connect from there to show him MY EQ world. The question is....can I make my minilogin to somehow detect internet AND lan traffic?? When I tried playing with the external IPs vs the internal IP which are there now, I get the 1017 when I try to connect from here.
Is this even possible?

Thanks in advance!