On Thu, Feb 15, 2001 at 03:10:49PM +0300, Joseph Begumisa wrote: > I have a scenario like this: 1 server with 3 NIC's one for a LAN and the > other two to ISP's. I run Suse Linux on that server but I would like > ideas on know which routing program I can use so that when one provider > goes down, the traffic going out of the lan goes through the other NIC > connected to the second ISP. > Thanx You propably want to do it with BGP. At least if the ISP's you have are of different autonomous systems. (what would indeed be the point if they weren't..) Two links to *same* ISP are way simpler, of course. http://www.linux.org/docs/ldp/howto/Adv-Routing-HOWTO-16.html A simple "switch over the default route" scheme works for outbound packets, but inbound packets need to find your network(s), and information on what route to use when reaching for your network(s) need to be propagated to the Internet core routing protocols. The further away the two ISP's have their common point (if any) in the Internet, the further away the route change must get sent. Repeat after me: It is *not* trivial. > -- > Regards, > > Joseph Begumisa > begj@eahd.or.ug /Matti Aarnio - : send the line "unsubscribe linux-net" in the body of a message to majordomo@vger.kernel.org
