From owner-freebsd-questions@FreeBSD.ORG Mon Jun 2 16:31:31 2008 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 2EF1B1065673 for ; Mon, 2 Jun 2008 16:31:31 +0000 (UTC) (envelope-from rvm@CBORD.com) Received: from smssmtp.cbord.com (mx1.cbord.com [24.39.174.11]) by mx1.freebsd.org (Postfix) with ESMTP id 0063F8FC14 for ; Mon, 2 Jun 2008 16:31:30 +0000 (UTC) (envelope-from rvm@CBORD.com) X-AuditID: ac1f0165-0000134000000330-80-4844204a2ace Received: from Email.cbord.com ([10.1.1.100]) by smssmtp.cbord.com with Microsoft SMTPSVC(6.0.3790.1830); Mon, 2 Jun 2008 12:31:05 -0400 X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Date: Mon, 2 Jun 2008 12:27:41 -0400 Message-ID: In-Reply-To: <6ae50c2d0806020913v2c7665b8nc3673e30cb8627cc@mail.gmail.com> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: VPN (IPSEC) Thread-Index: AcjEy9W4S4QcPqJZSBOJWU0yrCMRtQAAV78g References: <6ae50c2d0805311649p14863af3y43af39fb4aa2cc8a@mail.gmail.com> <6ae50c2d0806020913v2c7665b8nc3673e30cb8627cc@mail.gmail.com> From: "Bob McConnell" To: "alexus" , X-Brightmail-Tracker: AAAAAA== Cc: Subject: RE: VPN (IPSEC) X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 02 Jun 2008 16:31:31 -0000 On Behalf Of alexus > >anyone? > > >On Sat, May 31, 2008 at 7:49 PM, alexus wrote: >> Hello, >> >> I'm trying to establish a VPN tunnel over internet, I read a >> http://www.freebsd.org/doc/en/books/handbook/ipsec.html on how to set >> it up, I'm some what strangeling if my setup will work at all. >> IIRC, IPSEC cannot work through a NAT connection. NAT changes header fields that IPSEC uses for packet authentication. So the receiver cannot validate the content of the modified header. Bob McConnell