Date: Wed, 21 Apr 1999 12:32:43 +0100 From: Brian Somers <brian@Awfulhak.org> To: "Samuel Castro" <scastro@tpv.com.mx> Cc: questions@FreeBSD.ORG Subject: Re: Tunnel through proxy server Message-ID: <199904211132.MAA02561@keep.lan.Awfulhak.org> In-Reply-To: Your message of "Sat, 17 Apr 1999 14:20:21 CDT." <000001be891e$10924c40$30d422c8@alpha>
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This is a multipart MIME message. --==_Exmh_-2179633170 Content-Type: text/plain; charset=us-ascii > I have one machine behind a firewall (no control with that) and another in the outside, tryied to stablish a tunnel between the two systems using PPP over TCP, (I can open a telnet connection between the machines) but the PPP (LCP phase) never comes up. > > Any ideas? > > Samuel Castro This is possible, but there are a number of gotcha's and a patch that must be applied (I've committed the patch to -current and -stable and it'll be available from http://www.Awfulhak.org/ppp.html soon. I've also attached it here as it's pretty small). o You must ``set escape 0xff'' so that telnet doesn't barf on these characters. o After ``set device !telnet'' and ``term'' you must type ``open machine^M^J'' as you're in raw mode. o You should ``set redial 1'', otherwise it looks like ppp is hanging on second and subsequent ``term'' calls. o Once you've connected and logged into the remote machine, you need the ppp patch to run ``exec ppp -direct whatever''. Without it ppp -direct will barf because it doesn't expect to have to deal with pseudo ttys that can't do ioctl(TIOCMGET). Cheers. -- Brian <brian@Awfulhak.org> <brian@FreeBSD.org> <http://www.Awfulhak.org>; <brian@OpenBSD.org> Don't _EVER_ lose your sense of humour ! <brian@uk.FreeBSD.org> --==_Exmh_-2179633170 Content-Type: application/x-patch ; name="1.patch" Content-Description: 1.patch Content-Disposition: attachment; filename="1.patch" diff -r -N -u --exclude=CVS --exclude=*.o --exclude=*.gz --exclude=*.orig --exclude=*.cat* --exclude=ppp --exclude=*.cat* --exclude=.??* ppp/modem.c 1/modem.c --- ppp/modem.c Mon Apr 5 19:37:07 1999 +++ 1/modem.c Wed Apr 21 08:12:35 1999 @@ -287,9 +287,10 @@ if (modem->fd >= 0) { if (ioctl(modem->fd, TIOCMGET, &modem->mbits) < 0) { - log_Printf(LogPHASE, "%s: ioctl error (%s)!\n", modem->link.name, - strerror(errno)); - datalink_Down(modem->dl, CLOSE_NORMAL); + log_Printf(LogPHASE, "%s: Carrier not required (pseudo tty ?)\n", + modem->link.name); + timer_Stop(&modem->Timer); + modem->mbits = TIOCM_CD; return; } } else --==_Exmh_-2179633170-- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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