Date: Wed, 27 Aug 1997 16:20:01 -0700 From: Scott Johnson <srj@jps.net> To: freebsd-questions@freebsd.org Subject: FreeBSD doesn't see the phone line drop. Help! Message-ID: <3.0.2.32.19970827162001.00caa740@mail.jps.net>
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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-----
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