From owner-freebsd-isp  Fri Jul  6  8:17:47 2001
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Date: Fri, 6 Jul 2001 11:17:44 -0400
From: Greg Skouby <gskouby@sitesnow.com>
To: freebsd-isp@freebsd.org
Subject: source routing (again)
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In-Reply-To: <20010705160057.C95034@sitesnow.com>; from gskouby@sitesnow.com on Thu, Jul 05, 2001 at 04:00:57PM -0400
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Is there a way to specify which interface the traffic should 
go out of if the address is x.x.x.x?

Thanks.


n Thu, Jul 05, 2001 at
04:00:57PM -0400, Greg Skouby wrote:
> Hello,
> 
> 
> I am attempting to set up source routing with my FreeBSD
> router/firewall using ipfw fwd. 
> 
> 
> 
> I have all outbound traffic coming in through an
> interface ed1 which is at 192.168.1.5. If it is
> coming from 10.0.1.0/24 I want to send it out of
> interface dc0 which is at 192.168.1.4. If it is
> coming from 10.0.2.0/24 I want to set it out of xl0
> which is at 192.168.1.3. 
> 
> 192.168.1.1 is the gateway out of xl0 and 
> 192.168.1.2 is the gateway out of dc0
> 
> 
> I through the following commands would get the job done:
> 
> ipfw add fwd 192.168.1.1 ip from 10.0.2.0/24 to any out via xl0
> ipfw add fwd 192.168.1.2 ip from 10.0.1.0/24 to any out via dc0
> 
> 
> but those commands produce this error:
> 
> ipfw: getsockopt(IP_FW_ADD): Invalid argument
> 
> any ideas??
> Thanks for the time.
> 
> 
> 
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