Dual NICs for Dual Speed?

hackerError · Posted: Thu Dec 11, 2003 7:15 am Post subject: Dual NICs for Dual Speed?

Hello
Our school limits our internet connections to 128k up and down
I have two NICs on my motherboard.
My roommate has gone home for winter break, and I have set up eth1 to use his IP address.

My Question is how can I (if I can at all) make it so that when a program wants to access the internet it auto selects the best nic to go through.

At the moment all programs seem to be ignoring eth1 and eth0 has all of its bandwidth sucked up by bittorrent. I want to play Warcraft or browse the internet using eth1 but I cannot since its using eth0 and bittorrent is a hog
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ikaro · Advocate Joined: 14 Jul 2003 Posts: 2527 Location: Denmark

what about binding and QoS ?
Ive never done that my self, but it could be a solution.
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NewBlackDak · Posted: Thu Dec 11, 2003 10:08 am Post subject:

This is called bonding in Linux, and it takes a very expensive switch to be able to take advantage of this. I highly doubt the switch you're on has this capability. Just do some searches in this forum or google for bonding.
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fleed · l33t Joined: 28 Aug 2002 Posts: 756 Location: London

I'm pretty sure a switch wouldn't make a difference in his case since the bottleneck is not at his local LAN but at the point he accesses the net.

What you could do if you want to get better performance for a single internet host is to add an entry to your routing table specifying which interface to use for the warcraft server. It gets a bit complicated if you want to have a more generic solution though. Maybe you could use iptables to specify that the bittorrent connections go through a specific iface and all the rest through the other?

Jesore · Posted: Thu Dec 11, 2003 10:51 am Post subject:

A simple route command should do. You can tell which adresses should use which interface. So at least the warcraft server (fixed ip adress) should be accessible via eth1. With bittorrent and webbrowsing (lots of adresses) it is nearly impossibe as you'd have to modify the routing table for each site or bittorrent server. There you need the default gateway, which is for every other connection not specified in the routing table.

Jesore

BigD · n00b Joined: 10 Dec 2003 Posts: 11

Unfortunately unless BOTH your routers support the Border Gateway Protocol and share data between themselves then I'm afraid you can't. This is what the BGP protocol was created for

BigD

kashani · Posted: Thu Dec 11, 2003 7:05 pm Post subject: