> > > > ifconfig_dc0 inet 1.2.3.4 netmask 255.255.255.248 > > > > ifconfig_dc0_alias0 inet 2.3.4.5 netmask 255.255.255.248 > > > > defaultrouter="1.2.3.1" > > > > It's not on the same network; that's the problem. Two complete separate > > networks, same interface card. The issue is that one of the networks > > works, and the other doesn't, depending on what network the default router > > happens to be on. > > In general, you're going to need a mechanism for dynamically routing > packets in order to make this sort of setup work. For most setups, > you'ld need the co-operation of your ISP to make things work as well.
The situation is this - there are 4 servers that are on one network. I'm trying to switch them over to another network, but I need to do it without downtime. Therefore, I need to have both IPs completely active and functional simultaneously. Would the situation be any easier if I put one of the networks on a separate NIC? Is there any way to determine what IP/interface a connection came in on, and continue to use that IP/interface for the outbound packets? Maybe with static routes or something of that nature? The thing is, I used this exact setup (albeit on two different network cards) on a FreeBSD 2.x box quite a ways back, for the same purpose (switching networks), and it was working fine. _______________________________________________ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"