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Article #279

LCP ConfReq failed negotiation

#279
From: Adrian Cumiskey
Date: Sun, 24 Jun 2001 19:33
76 lines
5076 bytes
Hi all,

I am running a SuSe 7.0 system (2.2.16 kernel).  I have just returned back
to the UK from Germany where I was happily enjoying an ISDN PPP (IPPP)
connection to my ISP.  But now I've returned back to the UK, I've switched
to using a standard US Robotics analogue modem.  It connects fine on Win32
but fails in negotiation on my Linux system.  SuSe uses wvdial as dialup
tool, below is the output from wvdial and /var/log/messages.

--------------------------------------------------------------------------
wvdial
--------------------------------------------------------------------------

--> WvDial: Internet dialer version 1.41
--> Initializing modem.
--> Sending: ATZ
ATZ
OK
--> Sending: ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0
ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0
OK
--> Modem initialized.
--> Idle Seconds = 180, disabling automatic reconnect.
--> Sending: ATDT08456621098
--> Waiting for carrier.
ATDT08456621098
CONNECT 46666/ARQ
--> Carrier detected.  Starting PPP immediately.
--> Starting pppd at Sun Jun 24 20:44:52 2001
--> pid of pppd: 615
--> Disconnecting at Sun Jun 24 20:45:01 2001
--> The PPP daemon has died: A modem hung up the phone (exit code = 16)
--> man pppd explains pppd error codes in more detail.
--> Try again and look into /var/log/messages and the wvdial and pppd
--> man pages for more information.

--------------------------------------------------------------------------
/var/log/messages
--------------------------------------------------------------------------

Jun 24 20:44:53 crunchie pppd[615]: Plugin /usr/lib/passwordfd.so loaded.
Jun 24 20:44:53 crunchie kernel: Cronyx Ltd, Synchronous PPP and CISCO HDLC
(c) 1994
Jun 24 20:44:53 crunchie kernel: Linux port (c) 1998 Building Number Three
Ltd & Jan "Yenya" Kasprzak.
Jun 24 20:44:54 crunchie kernel: CSLIP: code copyright 1989 Regents of the
University of California
Jun 24 20:44:54 crunchie kernel: PPP: version 2.3.7 (demand dialling)
Jun 24 20:44:54 crunchie kernel: PPP line discipline registered.
Jun 24 20:44:54 crunchie kernel: registered device ppp0
Jun 24 20:44:54 crunchie pppd[615]: pppd 2.4.0 started by root, uid 0
Jun 24 20:44:54 crunchie pppd[615]: Perms of /dev/ttyS0 are ok, no 'mesg n'
neccesary.
Jun 24 20:44:54 crunchie pppd[615]: Using interface ppp0
Jun 24 20:44:54 crunchie pppd[615]: Connect: ppp0 <--> /dev/ttyS0
Jun 24 20:44:54 crunchie pppd[615]: sent [LCP ConfReq id=0x1 <asyncmap 0x0>
<magic 0xcea38803> <pcomp> <accomp>]
Jun 24 20:45:00 crunchie last message repeated 2 times
Jun 24 20:45:00 crunchie pppd[615]: Hangup (SIGHUP)
Jun 24 20:45:00 crunchie pppd[615]: Modem hangup
Jun 24 20:45:00 crunchie pppd[615]: Connection terminated.
Jun 24 20:45:00 crunchie pppd[615]: Exit.

--------------------------------------------------------------------------

I don't seem to be receiving acknowledgment for my LCP ConfReq, which to me
means I am sending an invalid ConfReq or I am failing to recognise an
acknowledgment.  This is not an ISP problem because I have tried connecting
to different providers.  So I'm thinking maybe its a configuration problem I
have.  I have not upgraded my kernel as yet so I'm still using the default
module build.  If anybody has else has had similar problems, or can advise
me on different things that I can try then please reply.

Please help!

Adrian Cumiskey.
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From: "Adrian Cumiskey" <adrian@cumiskey.com>
Newsgroups: alt.os.linux.suse,comp.os.linux.help,comp.os.linux.networking,comp.os.linux.questions,cz.comp.linux.suse,free.linux.suse
Subject: LCP ConfReq failed negotiation
Date: Sun, 24 Jun 2001 21:33:15 +0200
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