First post, by Archy
I'm not talking about Zdemon, Skulltag, Odamex or any of that but the original Doom on DOSBox.
Just know though that It will be really frustrating at first and a lot of trial and error will be involved, but I'll guide you through it. At the end of the day if everything fails, we can always start up Chocolate-Doom, though that's a distant second.
There are two ways we could do this, we could use DOOM's IPXSETUP.EXE utility which can either be used via command lines or through the DM.EXE graphical interface, or we could use APCIDOOM (download here) which is ultra user friendly but seems to malfunction for a lot of people... I'll make a thread about the problems later.
Video of APCIDOOM:
http://www.youtube.com/watch?v=unU9ClTIjZY
I prefer we use Hamachi so that way our real IP addresses won't be exposed and we wouldn't have to deal with port forwarding due to NAT, but if you insist on not using Hamachi , I will comply.