Date: Sat, 29 Oct 2016 16:21:22 -0400 From: "Mikhail T." <mi+thun@aldan.algebra.com> To: FreeBSD-net@FreeBSD.org Subject: How to forward traffic out via a non-default interface? Message-ID: <2685a303-1450-d060-0206-c84004f73e6d@aldan.algebra.com>
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Hello! I asked this question online already:
http://superuser.com/q/1138996/247471?sem=2
if you have an answer, please, share it wherever you feel appropriate...
have a fairly vanilla home LAN with an Internet provider-supplied router
providing DHCP. The router uses many of its default settings unmodified.
The home network is 192.168.1.0/24 and the router itself is known
internally as 192.168.1.1.
I need to configure several similar routers to change their default
settings. One of my computers (running FreeBSD) has a spare Ethernet
interface (|bce0|) and I connected one of these additional routers to
it. As expected, this router /also/ uses 192.168.1.1. The machine now
has two "configured" interfaces:
* |bce1| -- 192.168.1.8, which is connected to the "real" router,
connecting it to the Internet and the rest of the home LAN
* |bce0| -- 192.168.1.5, which is connected to the second router,
which I need to change to use different network settings
How can I reach this second router without breaking the machine's
connectivity with the LAN and the Internet? Simply trying to reach
192.168.1.1 goes through |bce1| and reaches my normal router...
Can |ipfw(8)| somehow force certain packets to go out using |bce0|
instead of |bce1|? Preferably, without the use of "fib", because adding
one requires a reboot...
Thanks! Yours,
-mi
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