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Date:      30 Apr 2003 14:50:44 -0400
From:      Lowell Gilbert <freebsd-security-local@be-well.no-ip.com>
To:        Guy Middleton <guy@obstruction.com>
Cc:        freebsd-security@freebsd.org
Subject:   Re: how to configure a FreeBSD firewall to pass IPSec?
Message-ID:  <44k7dbn7jv.fsf@be-well.ilk.org>
In-Reply-To: <20030430094537.A20710@chaos.obstruction.com>
References:  <20030430094537.A20710@chaos.obstruction.com>

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Guy Middleton <guy@obstruction.com> writes:

> I have a FreeBSD box acting as a firewall and NAT gateway
> 
> I would like to set it up to transparently pass IPSec packets -- I have
> an IPSec VPN client running on another machine, connecting to a remote network.
> 
> Is there a way to do this?  I can't find any hints in the man pages.

It's impossible.  IPSEC can't be passed through a NAT.

The best you could do would be to terminate the tunnel on the gateway itself.



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