Date: Tue, 18 Apr 2000 10:29:36 +0300 From: Ruslan Ermilov <ru@FreeBSD.ORG> To: Archie Cobbs <archie@whistle.com> Cc: Julian Elischer <julian@elischer.org>, Brian Somers <brian@Awfulhak.org>, Charles Mott <cmott@scientech.com>, Ari Suutari <ari@suutari.iki.fi>, Eivind Eklund <perhaps@yes.no>, net@FreeBSD.ORG Subject: Re: Improved PPTP support for libalias(3) Message-ID: <20000418102936.B95762@relay.ucb.crimea.ua> In-Reply-To: <200004180014.RAA28144@bubba.whistle.com>; from Archie Cobbs on Mon, Apr 17, 2000 at 05:14:25PM -0700 References: <20000417170542.A61926@relay.ucb.crimea.ua> <200004180014.RAA28144@bubba.whistle.com>
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On Mon, Apr 17, 2000 at 05:14:25PM -0700, Archie Cobbs wrote: > Ruslan Ermilov writes: > > > does this mean that only one PC at a time behind a NAT wall, can access a > > > particular machine? > > > i.e. two visitors with their own laptops from the same place, > > > cannot go back to the same host to read their mail..? > > > This is not a BAD restriction, but it is a restriction.. > > > > > If you mean two PCs, each with their own tunnel to the same host, this > > will not work. The problem here is that we need some "tag" to use with > > source and destination IP addresses, to successfully de-alias packets > > coming in. For TCP and UDP packets, there are port numbers. For ICMP > > echo/timestamp packets, there is an ID field. But unfortunately, there > > seems to be no such "tag" with PPTP protocols. > > Sure there is: the Call ID. > > We are probably going to implement the remaining bit of this here > at Whistle in the next couple of weeks.. and will submit when done. > I was thinking in terms of RFCs 1701, 1702, 2003 and 2004. Where is the Call ID defined/implemented? -- Ruslan Ermilov Sysadmin and DBA of the ru@ucb.crimea.ua United Commercial Bank, ru@FreeBSD.org FreeBSD committer, +380.652.247.647 Simferopol, Ukraine http://www.FreeBSD.org The Power To Serve http://www.oracle.com Enabling The Information Age To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message
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