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Date: Wed, 6 Aug 2003 14:33:05 -0400 (EDT)
From: Kenneth Culver <culverk@yumyumyum.org>
To: "Michael K. Smith" <mksmith@noanet.net>
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Subject: Re: Question concerning dual-NIC configuration
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> Coming from a Network Engineering perspective, I'm interested in having
> my servers be as redundant as possible.  I have two NIC's in the
> machine, so I would like for the "server" to be reachable over either
> interface.
>
> To my mind, I would give a loopback interface an IP address that is the
> "server" in this case.  Then, each interface would have it's own subnet
> and I would route over those two interfaces to the loopback for all
> packets destined to the server.  So, something like:
>
>                 lo1 -> 192.168.1.1/32
> ed0 -> 172.16.1.2/30                ed1 -> 172.16.1.6/30
>
> Then, on the router, I have a route statement for 192.168.1.1/32 over the
> two interface subnets.
>
You could do this, but I'm not sure why you'd want to route those 2 to 1
interface. it'd be easier to make your server daemons listen on the 2 ed
devices.

Ken