Date: Wed, 12 Jan 2000 08:41:08 +0100 From: Christoph Kukulies <kuku@gilberto.physik.RWTH-Aachen.DE> To: Brian Somers <brian@Awfulhak.org> Cc: Marc van Kempen <marc@bowtie.nl>, Martin Welk <mw@theatre.sax.de>, Christoph Kukulies <kuku@gilberto.physik.RWTH-Aachen.DE>, freebsd-isdn@FreeBSD.ORG, brian@hak.lan.Awfulhak.org Subject: Re: one slight glitch in i4bispp Message-ID: <20000112084108.B97744@gil.physik.rwth-aachen.de> In-Reply-To: <200001120042.AAA01200@hak.lan.Awfulhak.org>; from brian@Awfulhak.org on Wed, Jan 12, 2000 at 12:42:46AM %2B0000 References: <marc@bowtie.nl> <200001120042.AAA01200@hak.lan.Awfulhak.org>
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On Wed, Jan 12, 2000 at 12:42:46AM +0000, Brian Somers wrote: > > > > > ppp(8) :-) > > > > > > If you enable -nat and -auto, ppp will keep the interface addresses > > > previously assigned and NAT them for you. This means that the > > > ``first connection'' will end up being NAT'd from the start (it's > > > bound to the old address but the peer has only ever seen the new > > > address). > > > [...] > > > > But when the connection times out and I get another dynamic IP nr, how > > is my tcp connection going to survive, isn't the socket on telnet.domain.com > > bound to my old (dynamic) ip nr? > > No, well not if the initial telnet packet caused the ``ppp -nat'' Since the initial topic was i4bisppp I'm wondering how one can extrapolate ppp -nat to kernel sppp and i4bisppp. > process to dial. Because it decides based on the unNATd packet, it > brings the link up and then (after IPCP has agreed another IP number) > sends the packet through the NAT engine. telnet.domain.com only ever > sees packets from the new IP number whereas the telnet process is > bound to the old IP number. > > Brian <brian@Awfulhak.org> <brian@FreeBSD.org> > -- Chris Christoph P. U. Kukulies kuku@gil.physik.rwth-aachen.de To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-isdn" in the body of the message
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