Halo 3’s Fixed IP Problem
Sunday, November 18th, 2007Ever since opening Halo 3 and hopping on Xbox Live with it, it’s been complaining about my router’s NAT settings. Apparently, it needs certain ports open to connect to other gamers. Tonight, I finally set out to get it working properly, but came up short.
After first doing a little research and discovering that Xbox Live uses TCP and UDP port 3074 and UDP port 88 (largely UDP port 3047, as indicated by my Ethereal packet dumps), I thought I could get away with forwarding those ports straight to my Xbox 360. Since my console was set to automatically lease an IP address from my router, it would quite probably get a different IP each time it boots up, thus “breaking” my carefully forwarded ports. The obvious solution is to choose a fixed IP address in the Xbox Dashboard. Once the IP is set statically and the appropriate ports are forwarded, all seems to be well, except for one minor hangup…
If you boot directly to the Halo 3 disc with with a fixed IP address, the network connection never links up before executing the game. Halo 3 runs, then refuses to connect to Xbox Live. I have to exit the game, go back to the Xbox Dashboard, Sign In to Xbox Live, then re-launch Halo to get it to go online. It couldn’t be a more roundabout way, but it seems that’s the only answer aside from enabling uPNP on the router, which I’ll never do for security reasons. I doubt my DD-WRT powered WRT54GL router is Microsoft-certified, but the problem seems to lie with the Xbox 360 or Halo 3, as it won’t even acknowledge the presence of an Ethernet cable until the Xbox Dashboard launches. (And on a side note, why would routers need to be “Xbox Live Compatible”? What kind of proprietary crap are they running that can’t play nice with off-the-shelf networking technologies?)
Has anyone else tried using a static IP on their Xbox 360 with Halo 3 and run into this issue? I’d love to hear some opinions or suggestions.

Getting high quality video out of the Xbox 360 is quite easy with the help of a $15 (shipped) HDMI to DVI cable from
In preparation for the impending release of Halo 3, I finally got around to picking up an Xbox 360 yesterday, after nearly two years of waiting. Best Buy has stock of some of the newer consoles with a built-in HDMI port, so I opted to get one of those, so I could hook it up to a DVI computer LCD if need be. After being bombarded with offers of expensive extended warranties, unnecessary accessories, and “nitrogen injected cables”, I got out of there with just the new console and a game. After unboxing it and playing for a while, these were some of my impressions: