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To: Scott Johnson <srj@jps.net>
cc: freebsd-questions@FreeBSD.ORG
Subject: Re: FreeBSD doesn't see the phone line drop. Help! 
In-reply-to: Your message of "Wed, 27 Aug 1997 16:20:01 PDT."
             <3.0.2.32.19970827162001.00caa740@mail.jps.net> 
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Date: Thu, 28 Aug 1997 01:45:32 +0100
From: Brian Somers <brian@awfulhak.org>
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> Hi,
> 
> I've got a FreeBSD 2.1.0 setup that is routing traffic to/from my home LAN
> to my ISP.
> 
> Pac Bell has had muddier than usual lines, and it's causing the modem to
> give up and hang up.
> 
> Problem is, iijppp isn't seeing DCD go low.  I have the comstate program
> that Bruce Evans 
> posted (thanks, BTW) and it shows DCD toggling from low to high on carrier
> detect, and 
> toggling back to low when the line goes bad (some well-placed whistling
> into a phone causes
> this for testing purposes)
> 
> Problem is, iijppp just goes on merrily stuffing packets down the bad
> interface and doesn't 
> acknowledge that the connection is gone-- so you have to go in and manually
> close the connection.
> The logfile shows bunches of HDLC errors when this is happening.
> 
> -----begin-----
> $ telnet localhost 3000
> Trying 127.0.0.1...
> Connected to localhost.
> Escape character is '^]'.
> User Process PPP. Written by Toshiharu OHNO.
> Working in auto mode.
> PPP ON kauai> 
> 
> #<whistle into phone until line drops-- PPP stays capitalized, indicating it
>    thinks the line is still up> 
> 
> PPP ON kauai> close
> ppp ON kauai>
> 
> #<sounds of redialing>
> -----end-----
> 
> So, am I assuming anything wrong?  Should it work this way?  I'd *like* a
> redial
> to occur if the line craps out-- or at least have it acknowledge it so I
> don't have
> to go and pull it down myself.
> 
> Here's the stty for the modem port:
> -----begin-----
> 1-# stty -a -f /dev/cuaa1
> speed 9600 baud; 0 rows; 0 columns;
> lflags: -icanon -isig -iexten -echo -echoe -echok -echoke -echonl
>  -echoctl -echoprt -altwerase -noflsh -tostop -flusho -pendin
>  -nokerninfo -extproc
> iflags: -istrip -icrnl -inlcr -igncr -ixon -ixoff -ixany -imaxbel -ignbrk
>  -brkint -inpck -ignpar -parmrk
> oflags: -opost -onlcr -oxtabs
> cflags: cread cs8 -parenb -parodd hupcl -clocal -cstopb -crtscts -dsrflow
>         -dtrflow -mdmbuf
> cchars: discard = ^O; dsusp = ^Y; eof = ^D; eol = <undef>;
>         eol2 = <undef>; erase = ^?; intr = ^C; kill = ^U; lnext = ^V;
>         min = 1; quit = ^\; reprint = ^R; start = ^Q; status = <undef>;
>         stop = ^S; susp = ^Z; time = 0; werase = ^W;
> -----end-----
> 

You could try getting the latest version of ppp from 
http://www.freebsd.org/~brian.  Drop me a line if you're still having 
problems.
-- 
Brian <brian@awfulhak.org>, <brian@freebsd.org>
      <http://www.awfulhak.org>
Don't _EVER_ lose your sense of humour....