The Technical Exorcist

The other day I received an e-mail along these lines:

“The reason I’m writing is thanks to me moving back home Femme and I will be
back to one computer. ShadowQ (the guy I work with) suggested a router, but
we’re not sure what kind. So how do you get two people playing Warcraft III side by side?
If you do use a router, make/model? And do you use a wireless connection at all in your set up?”

In my reply, I gave an overview of how I set up our computers for the Ethereal Land game players:

“I use a Linksys wired router. I can’t really recommend Linksys, though. I haven’t been totally happy with their routers, but then I haven’t been totally happy with any router. I’d just make sure you get a well-known brand, whether it be Linksys, D-Link, Netgear, or whatever. I have used a wireless router in the past, but Ethereal residents were both very unhappy trying to play Warcraft online with it. Missed packets are no big deal when you’re browsing the web, but if you’re playing a game, it can make you lag like crazy. I’d stay away from wireless if you can. If you have a little money to blow and really don’t want to run Cat 5 cables for a wired router, I’ve heard that the routers that transfer data over your home electrical system work pretty good now.

To get two people online playing Warcraft at the same time, I set up both PC’s with fixed IP addresses. I then went into Warcraft’s Game settings and changed the network port on the one PC to 6112, and the other to 6113. Then I went into the router settings and set up port forwarding for the first machine to use port 6112, and the second machine to use 6113. This was necessary because Port forwarding sends all packets for the specified port to the IP address you supply. This means two people can’t play on the same port. You also need two Warcraft CD keys, because two people can’t be online with the same key.”