Are you using an ADSL router, or a PCI ADSL card? If you are using the latter, drivers for linux may or may not exist, and if they do exist, it may or may not be easy to set it all up. It is probably not worth the effort though if you can afford an ADSL router.
If you have an ADSL router (or another computer connects and shares its internet connection), then everything is fine, just point your computer to use that as the gateway.
Post edited at 11:38 am on Mar. 2, 2008 by Tangaroa