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To: Ted Wisniewski <ted@ness.plymouth.edu>
References: <200506141143.23368.ted@wiz.plymouth.edu>
From: Lowell Gilbert <freebsd-questions-local@be-well.ilk.org>
Date: 14 Jun 2005 14:00:31 -0400
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Cc: freebsd-questions@freebsd.org
Subject: Re: Creating a mirror port
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Ted Wisniewski <ted@ness.plymouth.edu> writes:

> I have a FreeBSD box with three Nic's; what I would like to do is mimic the 
> functionality of a "mirror-port" commonly found on switches.
> 
> On a routing firewall I would like traffic from say sk0 destined to sk1 and 
> vice versa to be mirrored on xl0 for purposes of network management.
> 
> I am pretty sure this can be done, but what is the easiest/best way do 
> implement?  How would this be done for a bridging firewall?

Sounds like exactly what ng_tee(4) was created for...