multiple ethernet interfaces, routing depending on destination

Hello,

I have two ethernet cards on two interfaces, eth0 and eth1. I have a
cable modem plugged into eth1 and a dsl modem plugged into eth0. I
would like to use the eth1 interface for everything except for http
requests to a particular website which I would like to go through the
dsl modem on eth0. (If you're curious I need to upload a large ammount
of data to amazon's S3 service and the DSL line has much better upload
speeds). I've done quite a bit of searching and it seems like the
linux routing is very flexible but I can't figure out how to have
requests to a particular domain go through a different ethernet
interface.

If someone would be kind enough to step me through this, or point me
to some documentation which deals with this I would be most grateful.

Thanks,
sam

(E-Mail Removed) wrote:

> Hello,
>
> I have two ethernet cards on two interfaces, eth0 and eth1. I have a
> cable modem plugged into eth1 and a dsl modem plugged into eth0. I
> would like to use the eth1 interface for everything except for http
> requests to a particular website which I would like to go through the
> dsl modem on eth0. (If you're curious I need to upload a large ammount
> of data to amazon's S3 service and the DSL line has much better upload
> speeds). I've done quite a bit of searching and it seems like the
> linux routing is very flexible but I can't figure out how to have
> requests to a particular domain go through a different ethernet
> interface.
>
> If someone would be kind enough to step me through this, or point me
> to some documentation which deals with this I would be most grateful.

I haven't tried it, but

route add -host upload.amazon.com dev eth0 metric 1 your.dsl.gateway
route add default dev eth1 metric 2 gw your.cable.gateway

might work.

--
Lasse Jensen [fafler at g mail dot com]
Linux, the choice of a GNU generation.