So what you're saying is that your cable modem provider is not doing rate shaping on the line itself, but on an ip by ip basis? So if you have 2 separate machines on your cable modem, and you upload something from each one of them, you will get the full 256kbps up from each machine (or whatever the typical upload speed is at your provider), for a total of 512kbps? Ok, if this is true, you have one problem with doing what you want to do. I'm now assuming they are rate shaping based on IP. Say your gaming server has 2 NIC's with the IP's 10.1.1.1 and 10.1.1.2 (I know these are private, but they're just examples). Some client sends a SYN with a source/dest of 10.99.99.99/10.1.1.1, your server responds from the NIC with the 10.1.1.2 address with a syn-ack with a source/dest of 10.1.1.2/10.99.99.99, the client expects to receive a syn-ack with 10.1.1.1/10.99.99.99 because it's original syn was sent to 10.1.1.1. The client will ignore that syn-ack and the connection will never get established because the packet came back from a different IP. Yeah, you can make the 10.1.1.2 nic spoof it's ip as 10.1.1.1, but if they are rate shaping based on IP, you aren't going to get any extra speed out of it. Now, for UDP, it's most likely going to be totally dependent on the game that's being played. Since UDP is connectionless, it's going to primarily be up to the software that is being used to figure out if it accepts packets from a different ip than the one it's sending to. I can't imagine this would work, because if it did, I could write a nice little program that spoofed Q3 commands, and cause lots of havoc with people's games. How many clients are you planning on connecting to your server anyway? I run 2 q3 servers from work which each have 4 server instances running on them for a total of 8, and I routinely have over 100 people connected to them, and the total bandwidth never goes over 600kbps outbound. Jay > -----Original Message----- > From: Chuck Larson [mailto:wyatt at coolsend.com] > Sent: Monday, February 19, 2001 7:55 PM > To: tclug-list at mn-linux.org > Subject: RE: [TCLUG] Dynamic routing. Anyone know something about it? > > > Jay, > > I understand that each connection would only be allowed a > maximum speed of my upload bandwidth on a single ip. If I > can specify which NIC device to TX on per ip, It should work. > I am doing it right now, the problem is i have to add the ip > to the routing table by hand. I am looking for a daemon > which would manage the connections to do this on a larger > scale. In a sense, do the work I can do but 24/7 when I am > not around. > > > You make very good points, but I have determined since my > first e-mail that it can be done. Now the question is how. > > --- "Austad, Jay" <austad at marketwatch.com> > > wrote: > >Sorry, probably not going to work. Just because you assign > 2 ip's to a box, > >doesn't make it get double the bandwidth. > > > >If you had 2 cable modem connections to the same provider, you could > >theoretically do it, but your cable provider would have to > provide some > >special stuff in their configs to make it work. Even so, > you wouldn't get > >double the bandwidth to a single host, but your aggregate > bandwidth could be > >around double. > > > >If I get 2 t-1's to some provider, say ATT. I then download > file from some > >site, the most I will most likely be able to get for > bandwidth is the max > >speed of one of those t-1's (1.544Mbps). If ATT has Cisco > equipment, and I > >have Cisco equip, and they configure ip cef (Cisco Express > Forwarding), and > >I do the same, it will do some load balancing on a packet by > packet basis, > >and use some of both of the t-1's, which would allow me to > get more than > >1.544Mbps on the download. However, this would suck for > gaming as packets > >arrive out of order on a much more frequent basis when using > this method. > > > >In any case, your cable modem provider will not do anything > for you on this > >one, and I suspect that the equipment they use for cable > modem service > >probably wouldn't support what you want to do anyway. Get > yourself a DSL > >line. Your download speeds are lower, but upload will be > comparable, and > >most DSL providers don't care if you run servers. > > > >Jay > > > >> -----Original Message----- > >> From: Chuck Larson [mailto:wyatt at coolsend.com] > >> Sent: Monday, February 19, 2001 5:33 PM > >> To: tclug-list at mn-linux.org > >> Subject: [TCLUG] Dynamic routing. Anyone know something about it? > >> > >> > >> Hi, > >> > >> I am new to the list, and hope I can contribute and get some > >> good advice. > >> > >> I am currently attempting to use 2 external ips to host a > >> game server on my cable modem( shh, don't tell anyone). If I > >> am still correct( since I recently moved down from St. > >> Cloud, and could do this. ), I would double the amount of > >> upload bandwidth available for multiple connections. > >> Currently I can manually enter in an ip, using route, I can > >> tell the kernel to use the second ip( ethernet card ) to > >> connect to that host. The question is how do I enable the > >> kernel to automatically do this without me sitting at the > >> console and manually do it. I have currently looked at bird, > >> but I haven't taken huge amount of time to do this because I > >> have to learn how to configure it first. Has anyone > >> attempted this or know how? I could use a ( or few ) good > >> pointers on this. I am getting more confident that this can > >> be done. The question is, what the best way? > >> > >> Thanks in advance, > >> Chuck Larson. > >> > >> _____________________________________________________________ > >> Domain powered by www.iReg.com > >> E-mail powered by www.1FreeEmail.com > >> _______________________________________________ > >> tclug-list mailing list > >> tclug-list at mn-linux.org > >> https://mailman.mn-linux.org/mailman/listinfo/tclug-list > >> > >_______________________________________________ > >tclug-list mailing list > >tclug-list at mn-linux.org > >https://mailman.mn-linux.org/mailman/listinfo/tclug-list > > _____________________________________________________________ > Domain powered by www.iReg.com > E-mail powered by www.1FreeEmail.com > _______________________________________________ > tclug-list mailing list > tclug-list at mn-linux.org > https://mailman.mn-linux.org/mailman/listinfo/tclug-list >