Return to BSD News archive
Path: euryale.cc.adfa.oz.au!newshost.anu.edu.au!harbinger.cc.monash.edu.au!simtel!oleane!tank.news.pipex.net!pipex!btnet!dispatch.news.demon.net!demon!skate.demon.co.uk!skate.demon.co.uk!not-for-mail From: plunky@skate.demon.co.uk (Iain Hibbert) Newsgroups: comp.unix.bsd.netbsd.misc Subject: Re: Help: PPP and Modem communications Date: 21 Aug 1995 18:46:50 +0100 Organization: The Bath Room Lines: 40 Message-ID: <41agqa$2t2@skate.demon.co.uk> References: <416eo3$4s1@news.laser.net> NNTP-Posting-Host: skate.demon.co.uk X-NNTP-Posting-Host: skate.demon.co.uk X-Newsreader: TIN [version 1.2 PL2] warbird@laser.net warbird@laser.net writes: > I've read and read all about pppd and chat etc but am stumped as to why pppd > fails to properly talk to my external modem. The board/cables/modem all check > out as I've use the combo under dos/OS/2 just fine. > This is what I've typed at the prompt: > pppd /dev/tty01 38400 connect 'chat "" "ATE1L0M1N1Q0V1W2X4....." "OK" (wrap) > "ATDT934-9021" "login:" "****" "ssword:" "****"' > The DTR light comes on but the send/receive lights do nothing. > dmesg reports the existance of com0 and com1 as 16550 uarts, FIFO enabled > but there is no /dev/com0 device. I looked at the MAKEDEV and sure enough they > don't get created but given the comments in there I assume there is a reason for this. check the tty flags (stty -f /dev/tty01), I have had similar troubles with the modem seemingly locking up (on a NetBSD/sparc) but having "cs8 parenb clocal crtscts" set seems to fix it.. > Also, can anyone tell me why the following returns an error "unknown -f flag"? > pppd /dev/tty01 38400 connect 'chat -f ~/chat.ppp' > The only way I got it to not return an error was to enclose the 'chat...' section in > double quotes instead of single. Is this proper? if it works, its proper :) you could just have "#! /bin/chat -f" (no quotes) as the first line of the chat script and run the script as the command.. > Finally, how do I communicate directly to the modem, as one can do in dos and OS/2 > with a 'copy con com2' and then send it the commands? Chat appears to have no > facility for specifying which device to open and initialize. I use tip for that.. chat just uses the standard io, so I guess if you wanted to start chat manually you could redirect the io to the tty you want to use. I don't really understand the ttya/cuaa thing, my system doesn't have it -- ]ain