Hi Linux fellows,
I have a problem with RedHat5.0, Once my 33.6K modem connected to the server
and starts ppp0 it exits with the above error message. I tried debugging
methods suggested in the PPP-HOWTO documents without any success, and also
sending AT&F command, which is my modem's factory default as suggested by some
of you fellows. Despite spending several hours fiddling with various
combinations of modem INIT commands and chat script options I am still
UNSUCCESSFUL. When I turned on the kernel debugging level to 7 I can see the
problem causing this, 'frame with bad fcs, excess = xxxx' but don't know what
actually causing this and how to fix. I can run ppp with Win95 without any
problems, and my minicom works fine too. Is anybody out there can through me
new ideas, or if someone could explain me what could be the probable
problem(s), they all are very much appreciated.
These are my pppd options in the ppp-on script,
exec /usr/sbin/pppd debug lock modem crtscts /dev/modem 115200 \
asyncmap 0 escape FF kdebug 7 $LOCAL_IP:$REMOTE_IP \
noipdefault netmask $NETMASK defaultroute connect $DIALER_SCRIPT
I'll append the tail of /var/log/messages with kdebug set to 7.
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Jun 7 13:39:39 localhost pppd[4820]: Serial connection established.
Jun 7 13:39:40 localhost kernel: ppp_tty_ioctl: set flags to 70000
Jun 7 13:39:40 localhost kernel: ppp_tty_ioctl: set flags to 70000
Jun 7 13:39:40 localhost kernel: ppp_tty_ioctl: set xasyncmap
Jun 7 13:39:40 localhost kernel: ppp_tty_ioctl: set xmit asyncmap ffffffff
Jun 7 13:39:40 localhost kernel: ppp_tty_ioctl: set flags to 70000
Jun 7 13:39:40 localhost kernel: ppp_tty_ioctl: set mru to 5dc
Jun 7 13:39:40 localhost kernel: ppp_tty_ioctl: set rcv asyncmap ffffffff
Jun 7 13:39:40 localhost kernel: ppp_tty_ioctl: set flags to 70000
Jun 7 13:39:40 localhost pppd[4820]: Using interface ppp0
Jun 7 13:39:40 localhost pppd[4820]: Connect: ppp0 <--> /dev/modem
Jun 7 13:39:40 localhost kernel: ppp: frame with bad fcs, excess = 7857
Jun 7 13:39:43 localhost kernel: ppp: frame with bad fcs, excess = ca7b
Jun 7 13:39:44 localhost kernel: ppp: frame with bad fcs, excess = 3e8
Jun 7 13:39:44 localhost kernel: ppp: frame with bad fcs, excess = 4aac
Jun 7 13:39:44 localhost kernel: ppp: frame with bad fcs, excess = 17ae
Jun 7 13:39:46 localhost kernel: ppp: frame with bad fcs, excess = 5386
Jun 7 13:39:46 localhost kernel: ppp: frame with bad fcs, excess = 17ae
Jun 7 13:39:46 localhost kernel: ppp: frame with bad fcs, excess = c7d7
Jun 7 13:39:46 localhost kernel: ppp: frame with bad fcs, excess = 17ae
Jun 7 13:39:46 localhost kernel: ppp: frame with bad fcs, excess = 45a0
Jun 7 13:39:47 localhost kernel: ppp: frame with bad fcs, excess = a63e
Jun 7 13:39:47 localhost kernel: ppp: frame with bad fcs, excess = 5694
Jun 7 13:39:47 localhost kernel: ppp: frame with bad fcs, excess = e1cb
Jun 7 13:39:47 localhost kernel: ppp: frame with bad fcs, excess = 17ae
Jun 7 13:39:49 localhost kernel: ppp: frame with bad fcs, excess = 225a
Jun 7 13:39:49 localhost kernel: ppp: frame with bad fcs, excess = 17ae
Jun 7 13:39:49 localhost kernel: ppp: frame with bad fcs, excess = f16d
Jun 7 13:39:50 localhost kernel: ppp: frame with bad fcs, excess = 5fa9
Jun 7 13:39:50 localhost kernel: ppp: frame with bad fcs, excess = 6058
Jun 7 13:39:50 localhost kernel: ppp: frame with bad fcs, excess = b410
Jun 7 13:39:50 localhost kernel: ppp: frame with bad fcs, excess = 17ae
Jun 7 13:39:52 localhost kernel: ppp: frame with bad fcs, excess = 321d
Jun 7 13:39:52 localhost kernel: ppp: frame with bad fcs, excess = 17ae
Jun 7 13:39:52 localhost kernel: ppp: frame with bad fcs, excess = 17ae
Jun 7 13:39:52 localhost kernel: ppp: frame with bad fcs, excess = f21
Jun 7 13:39:53 localhost kernel: ppp: frame with bad fcs, excess = a74f
Jun 7 13:39:53 localhost kernel: ppp: frame with bad fcs, excess = 3424
Jun 7 13:39:53 localhost kernel: ppp: frame with bad fcs, excess = 5633
Jun 7 13:39:53 localhost kernel: ppp: frame with bad fcs, excess = 17ae
Jun 7 13:39:55 localhost kernel: ppp: frame with bad fcs, excess = f742
Jun 7 13:39:55 localhost kernel: ppp: frame with bad fcs, excess = 797
Jun 7 13:39:55 localhost kernel: ppp: frame with bad fcs, excess = 17ae
Jun 7 13:39:55 localhost kernel: ppp: frame with bad fcs, excess = 4cb3
Jun 7 13:39:56 localhost kernel: ppp: frame with bad fcs, excess = ec88
Jun 7 13:39:56 localhost kernel: ppp: frame with bad fcs, excess = 17c8
Jun 7 13:39:59 localhost kernel: ppp: frame with bad fcs, excess = 9fcc
Jun 7 13:40:08 localhost last message repeated 3 times
Jun 7 13:40:10 localhost pppd[4820]: LCP: timeout sending Config-Requests
Jun 7 13:40:10 localhost kernel: ppp: channel ppp0 closing.
Jun 7 13:40:10 localhost pppd[4820]: Connection terminated.
Jun 7 13:40:10 localhost pppd[4820]: Receive serial link is not 8-bit clean:
Jun 7 13:40:10 localhost pppd[4820]: Problem: all had bit 7 set to 0
Jun 7 13:40:11 localhost pppd[4820]: Exit.
Jun 7 13:41:12 localhost kernel: PPP: ppp line discipline successfully unregis
tere
- -----------------------------------------------------------------------------
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thanks for your help
Priyantha Mudalige.
--
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