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From: "Eggert, Lars" <lars@netapp.com>
To: Ivan Voras <ivoras@freebsd.org>
Subject: Re: Problems with two interfaces on the same subnet?
Thread-Topic: Problems with two interfaces on the same subnet?
Thread-Index: AQHOCUb6Tp99D1R3iECoMLZWzmGEXph3AyuAgAADNoCAAAWpAA==
Date: Tue, 12 Feb 2013 18:10:25 +0000
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Hi,

On Feb 12, 2013, at 9:50, Ivan Voras <ivoras@freebsd.org> wrote:
>> You can make this work with ipfw rules (and I guess also setfib, althoug=
h I have not tried that.)
>=20
> The concept of FIBs looks clean and applicable but setfib works on newly
> started process, and I would need to do something like apply it to
> packets coming from an interface.

Assuming your default route is via igb2, you can do something like this:

ipfw add fwd <router upstream of igb3> ip4 from <local address of igb3> to =
not <subnet of igb2> out

(From memory, no guarantees.)

Lars=