On Wed, 2003-10-29 at 14:47, Chris Bullock wrote: > > We are looking at a similar setup at our office. We have 2 ISP's, one > DSL and one T1. We have dedicated traffic for each ISP, but we want to > set it up so that if one goes down the router will say "hey, that link > is down go this way," but we also want to know when the link is back up > and then normal traffic will resume. Would we have to look at routing > protocols ie igrp, etc. or is this feature readily available with Linux > routing? > chris > In order to do fail-over routing, you have to have each ISP program in a secondary (less preferred) route to your domain. This is a fairly standard feature of all Cisco routers.
You will also have to put routes in each of your gateways (the DSL and the T1) to handle the fail-over traffic and route it to the other gateway. The hardest part of this setup is getting the ISP to program their routers properly for you. Good Luck - Jon Carnes -- TriLUG mailing list : http://www.trilug.org/mailman/listinfo/trilug TriLUG Organizational FAQ : http://trilug.org/faq/ TriLUG Member Services FAQ : http://members.trilug.org/services_faq/ TriLUG PGP Keyring : http://trilug.org/~chrish/trilug.asc
