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Path: euryale.cc.adfa.oz.au!newshost.anu.edu.au!harbinger.cc.monash.edu.au!simtel!chi-news.cic.net!newsfeed.internetmci.com!EU.net!Germany.EU.net!zib-berlin.de!news.tu-chemnitz.de!irz401!uriah.heep!not-for-mail From: j@uriah.heep.sax.de (J Wunsch) Newsgroups: comp.unix.bsd.freebsd.misc Subject: Re: Modem Hanging hassles? Date: 12 Nov 1995 16:12:25 +0100 Organization: Private FreeBSD site, Dresden. Lines: 21 Message-ID: <4852sp$kah@uriah.heep.sax.de> References: <47tn82$llb@owl.und.ac.za> NNTP-Posting-Host: uriah.heep.sax.de Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit Keywords: modem getty slip login hang ttyd0 Ewan McPhail <chops@kestrel.ugrd.und.ac.za> wrote: >We have a single modem installed on out FreeBSD box (2.0.1) >- a Us-Robotics 14.4. We have recently been having hassles using >slip over this line - when logging off (hanging up from the remote >end), the modem "hangs" and the line remains "off-hook" so we are unable >to log in again. This rather looks like a modem configuration problem. The modem is supposed to detect the dropped carrier, and then to deassert the DCD line. This would cause the associated process (probably a sliplogin) to receive a SIGHUP, so it clears and would cause init to respawn a new getty. Most default modem settings are inappropriate for use with a Unix box, in particular the AT&C and AT&D (DCD and DTR handling) options. -- cheers, J"org joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE Never trust an operating system you don't have sources for. ;-)