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Date:      Tue, 12 Jul 2005 01:26:42 +0200
From:      Mario Lobo <mario.lobo@ipad.com.br>
To:        freebsd-hackers@freebsd.org
Cc:        freebsd-questions@freebsd.org
Subject:   Forcing a packet through an interface (OT?)
Message-ID:  <20050711232642.GK39292@obiwan.tataz.chchile.org>

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Forgive me if this is off-topic.

How could I force a packet to go out through an interface,
despite the default route?

Suppose I have two interfaces connected to the internet:

1) rl0 (real.ip.no.1) ---> ISP x

2) rl1 (real.ip.no.2) ---> ISP y

ISP y is just a backup link. ISP x is the working link.
Don?t want to load-balance them.  Use 2) ONLY if 1) is out.

Suppose 1) is down. I switch to 2). But I have to keep testing 1)
to see when it comes back up. How could I force a packet (ping maybe?)
to www.whatever.com through 1), despite the default route being 2) ?

I am aready binding the ping packet to the IP I want but that?s not enough.

any suggestions?

thanks,
--
   //|  //||
  // | // ||
-//--//---|| ARIO LOBO
//  //    ||
---------------------------------
mario.lobo@ipad.com.br
http://www.ipad.com.br

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----- End forwarded message -----

-- 
Jeremie Le Hen
< jeremie at le-hen dot org >< ttz at chchile dot org >



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