Date: Sun, 22 Dec 1996 14:16:59 +1100 From: davidn@sdev.usn.blaze.net.au (David Nugent) To: dicen@hooked.net Cc: nate@mt.sri.com (Nate Williams), chuckr@glue.umd.edu (Chuck Robey), freebsd-questions@freebsd.org, freebsd-current@freebsd.org, freebsd-stable@freebsd.org Subject: Re: User ppp not hanging up modem. Message-ID: <Mutt.19961222141659.davidn@sdev.blaze.net.au> In-Reply-To: <32BBB4C1.794BDF32@hooked.net>; from dicen@hooked.net on Dec 21, 1996 09:58:25 %2B0000 References: <Pine.OSF.3.95.961221100409.6960B-100000@professor.eng.umd.edu> <32BBA85F.41C67EA6@hooked.net> <199612211751.KAA27123@rocky.mt.sri.com> <32BBB4C1.794BDF32@hooked.net>
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dicen@hooked.net writes: >> That's *NOT* the correct thing. What happens when for some reason >> PPP happens to send the sequence '+++' to the modem? All of a sudden >> it'll drop into command mode and you're screwed. User-PPP (as well as >> all other PPP/SLIP implementations I've worked with) assumes that you've >> disabled the escape sequence at least temporarily. > > Interesting. But, what exactly is the prabobalitity of that? I will have > think about this one. The probability of it happening is very very small, given that there must also be a two minute "silence" from the DTE both before and after the '+++' sequence. The actual delay required is usually register configurable. David Nugent - Unique Computing Pty Ltd - Melbourne, Australia Voice +61-3-9791-9547 Data/BBS +61-3-9792-3507 3:632/348@fidonet davidn@freefall.org davidn@blaze.net.au http://www.blaze.net.au/~davidn/
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