From owner-freebsd-security@FreeBSD.ORG Wed Apr 30 12:04:10 2003 Return-Path: Delivered-To: freebsd-security@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 9DDE337B401 for ; Wed, 30 Apr 2003 12:04:10 -0700 (PDT) Received: from otter3.centtech.com (moat3.centtech.com [207.200.51.50]) by mx1.FreeBSD.org (Postfix) with ESMTP id C59A143FBD for ; Wed, 30 Apr 2003 12:04:09 -0700 (PDT) (envelope-from anderson@centtech.com) Received: from centtech.com (electron.centtech.com [204.177.173.173]) by otter3.centtech.com (8.12.3/8.12.3) with ESMTP id h3UJ4756028126; Wed, 30 Apr 2003 14:04:07 -0500 (CDT) (envelope-from anderson@centtech.com) Message-ID: <3EB01E1E.1040808@centtech.com> Date: Wed, 30 Apr 2003 14:03:58 -0500 From: Eric Anderson User-Agent: Mozilla/5.0 (X11; U; Linux i386; en-US; rv:1.0.1) Gecko/20020823 Netscape/7.0 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Lowell Gilbert References: <20030430094537.A20710@chaos.obstruction.com> <44k7dbn7jv.fsf@be-well.ilk.org> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit cc: freebsd-security@freebsd.org Subject: Re: how to configure a FreeBSD firewall to pass IPSec? X-BeenThere: freebsd-security@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Security issues [members-only posting] List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 30 Apr 2003 19:04:10 -0000 Lowell Gilbert wrote: > Guy Middleton 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. It actually depends on what is being "ipsec"'ed .. but for most real uses, you are right.. Eric -- ------------------------------------------------------------------ Eric Anderson Systems Administrator Centaur Technology Attitudes are contagious, is yours worth catching? ------------------------------------------------------------------