On Tue, 2005-02-15 at 14:39 -0500, David Benigni wrote: > >>> rchiodin@xxxxxxxxxxxxx 2/15/2005 11:35:01 AM >>> > > > > I suspect that the moving of the default route to eth1 and the > removing > > of the default route when eth1 is taken down has to do with the > lookup > > of the subnet associated with the router and the interface. The > default > > route disappears because the interface with the router's subnet goes > > down. The matching algorithm does not take into account that there > is > > another interface on the same subnet. It might be a bug, but most > > systems are not configured with two interfaces in the same subnet > > without some sort of bonding or bridging. > > This wouldn't be the first time I'm doing something that is out of the > norm :) > > > I've tried to sort out Dave's posting (fix your email client to not > > create a new email thread for each response) and conclude that there > is > >one particular host he wants to communicate with on one of the > >interfaces and everyone else on the other. Why, and is this host > >directly connected? It might be easier to burn a private subnet for > >this one host and let linux be it's default gateway (NAT and ip > >forwarding). > > Sorry about the email client, I'm pretty much stuck thought (Novell > GroupWise). > > Hears the story of what I'm trying to do. This box runs DHCPd and > bind. For legacy reasons, I have to bind multiple > ips to the box for an unknown amount of machines that are hard coded to > the old ip address. So, initial (and possibly > flawed) though was to have the new ip I want to roll out 10.x.y.107 > bound to eth0 and bind 10.x.y.114 to eth1. > Then when all the legacy systems are fixed, I can easily just down > eth1. I'd rather mess with eth1 since its not so > critical as eth0. > > So, thats the situation. Any ideas are welcomed. > > Thanks, > Dave > Are the hosts using 107 isolated from the hosts on 114? If not why not alias the two addresses on the same interface? ifconfig eth0 10.x.y.107 ... up ifconfig eth0:1 10.x.y.114 ... up The gateway would be relative to eth0 and should be available whenever eth0 is up. eth0:1 could be brought up and down without affecting the default gateway setting. Bob...
