> Basically, I have a LAN at home that goes through a RH 7.1 > system which serves as a NAT gateway (I use iptables) to the internet > through an IDSL connection. Since it's IDSL, it's not all that fast. > Problems arise when my wife is playing an online game (Ultima Online) I have the same set up for my adsl connection. I think the problem you describe is the bane of all us home network users. I haven got a perfect set up but I recomend looking at this attachment, which is from another post to this list a while back. http://www.ds9a.nl/2.4Routing/HOWTO//cvs/2.4routing/output/2.4routing-15.htm l#ss15.8 This works quite well, but since you know exactly what the problem is (UO requires a set amount of bandwidth to keep a good ping) I suggest using a packet sniffer to find out what ports UO uses and make a seperate bandwith class just for that port. Forget about the TOS bits from what ive seen they dont work reliably. I also think that this setup puts HTTP traffic into the fast class which is good for when your browsing webpages while somone downloads a big file, but it does mean that if you look at a particualy large page, (big lists generated by ASP or somthing) it can hog the bandwidth for a couple of seconds