From owner-freebsd-hackers Sun Jan 10 06:00:52 1999 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id GAA23230 for freebsd-hackers-outgoing; Sun, 10 Jan 1999 06:00:52 -0800 (PST) (envelope-from owner-freebsd-hackers@FreeBSD.ORG) Received: from awfulhak.org (awfulhak.force9.co.uk [195.166.136.63]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id GAA23225 for ; Sun, 10 Jan 1999 06:00:49 -0800 (PST) (envelope-from brian@Awfulhak.org) Received: from keep.lan.Awfulhak.org (root@keep.lan.Awfulhak.org [172.16.0.8]) by awfulhak.org (8.8.8/8.8.8) with ESMTP id OAA13899; Sun, 10 Jan 1999 14:00:16 GMT (envelope-from brian@Awfulhak.org) Received: from keep.lan.Awfulhak.org (brian@localhost [127.0.0.1]) by keep.lan.Awfulhak.org (8.9.1/8.9.1) with ESMTP id OAA00892; Sun, 10 Jan 1999 14:01:27 GMT (envelope-from brian@keep.lan.Awfulhak.org) Message-Id: <199901101401.OAA00892@keep.lan.Awfulhak.org> X-Mailer: exmh version 2.0.2 2/24/98 To: "Dru Nelson" cc: freebsd-hackers@FreeBSD.ORG Subject: Re: Tunneling GRE through NAT? In-reply-to: Your message of "19 Dec 1998 02:58:37 GMT." <19981219025837.1592.qmail@findmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Sun, 10 Jan 1999 14:01:27 +0000 From: Brian Somers Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG > Hi, > > I wrote a patch to natd to allow it pass GRE/ ie > PPTP. Check with the maintainers of natd on the > latest version. So you've mentioned before. Neither Charles or Ari (cc'd) seem to have mentioned it since.... > > I'm writing here because of what I found via the mailing list search at > > www.freebsd.org: > > > > -- > > On Wed, 1 Apr 1998, M.C Wong wrote: > > > > > I wonder if there is any implementation, user-land or kernel, of > > > tunneling protocol based on GRE (rfc1701, rfc1702) ? > > > > I remember some rumblings in -hackers about someone implementing a generic > > tunnelling system. I think a GRE tunnel was part of the inspiration for > > the project. Check the mail archives for info. > > > > Doug White | University of Oregon > > Internet: dwhite@resnet.uoregon.edu | Residence Networking Assistant > > http://gladstone.uoregon.edu/~dwhite | Computer Science Major > > -- > > > > Did this go anywhere? > > > > I have a number of Windows users who'd like to be able to access some > > WindowsNT based services using Microsoft's PPTP. > > > > As it stands, the WindowsNT machine is behind a FreeBSD machine running > > natd which is in turn behind a Cisco which acts as a firewall. > > > > I can pass PPTP packets (port 1723) through to the FreeBSD machine and I > > can pass the GRE packets associated with PPTP through to the FreeBSD > > machine. > > > > I can then tunnel the PPTP packets through natd to the NT box, but I > > haven't found any way to tunnel GRE through the NAT. > > > > Did this discussion of tunneling GRE through NAT ever go anywhere? Has > > anyone written any software that does this? Is there any reason why this > > would not be possible? (i.e., any reason why I shouldn't just pick up my > > network programming book and write it myself?) > > > > Any help is much appreciated. > > > > > > James Snow > > > > * * * * * * * * * * * * * * * * * * * * * * * * * * * * > > * We live in the short term | sno at teardrop dot org * > > * and hope for the best. | I am Geek. Hear me ^G * > > * * * * * * * * * * * * * * * * * * * * * * * * * * * * -- Brian Don't _EVER_ lose your sense of humour ! To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message