Help, I have some problem with LCP ConfReq

Benimaur Gao <[email protected]>
Newsgroups gmane.network.poptop
Message-ID <[email protected]> 
Hi, all:
    I meet with the same problem described here:
http://pptpclient.sourceforge.net/howto-diagnosis.phtml#lcp_timeout

I saw a lot of LCP_ConfReq packets in my syslog. My dial-up log is as follow:

Apr  7 18:50:09 skyshouter pppd[26918]: pppd 2.4.5 started by root, uid 0
Apr  7 18:50:09 skyshouter pppd[26918]: using channel 12
Apr  7 18:50:09 skyshouter pppd[26918]: Using interface ppp0
Apr  7 18:50:09 skyshouter pppd[26918]: Connect: ppp0 <--> /dev/pts/13
Apr  7 18:50:09 skyshouter pptp[26920]: anon log[main:pptp.c:314]: The
synchronous pptp option is NOT activated
Apr  7 18:50:09 skyshouter pptp[26928]: anon
log[ctrlp_rep:pptp_ctrl.c:251]: Sent control packet type is 1
'Start-Control-Connection-Request'
Apr  7 18:50:09 skyshouter pptp[26928]: anon
log[ctrlp_disp:pptp_ctrl.c:739]: Received Start Control Connection
Reply
Apr  7 18:50:09 skyshouter pptp[26928]: anon
log[ctrlp_disp:pptp_ctrl.c:773]: Client connection established.
Apr  7 18:50:10 skyshouter pppd[26918]: sent [LCP ConfReq id=0x1
<asyncmap 0x0> <magic 0xf93b9fd5> <pcomp> <accomp>]
Apr  7 18:50:10 skyshouter pptp[26928]: anon
log[ctrlp_rep:pptp_ctrl.c:251]: Sent control packet type is 7
'Outgoing-Call-Request'
Apr  7 18:50:10 skyshouter pptp[26928]: anon
log[ctrlp_disp:pptp_ctrl.c:858]: Received Outgoing Call Reply.
Apr  7 18:50:10 skyshouter pptp[26928]: anon
log[ctrlp_disp:pptp_ctrl.c:897]: Outgoing call established (call ID 0,
peer's call ID 2304).
Apr  7 18:50:13 skyshouter pppd[26918]: sent [LCP ConfReq id=0x1
<asyncmap 0x0> <magic 0xf93b9fd5> <pcomp> <accomp>]
Apr  7 18:50:16 skyshouter pppd[26918]: sent [LCP ConfReq id=0x1
<asyncmap 0x0> <magic 0xf93b9fd5> <pcomp> <accomp>]
Apr  7 18:50:19 skyshouter pppd[26918]: sent [LCP ConfReq id=0x1
<asyncmap 0x0> <magic 0xf93b9fd5> <pcomp> <accomp>]
Apr  7 18:50:22 skyshouter pppd[26918]: sent [LCP ConfReq id=0x1
<asyncmap 0x0> <magic 0xf93b9fd5> <pcomp> <accomp>]
Apr  7 18:50:25 skyshouter pppd[26918]: sent [LCP ConfReq id=0x1
<asyncmap 0x0> <magic 0xf93b9fd5> <pcomp> <accomp>]
Apr  7 18:50:28 skyshouter pppd[26918]: sent [LCP ConfReq id=0x1
<asyncmap 0x0> <magic 0xf93b9fd5> <pcomp> <accomp>]
Apr  7 18:50:31 skyshouter pppd[26918]: sent [LCP ConfReq id=0x1
<asyncmap 0x0> <magic 0xf93b9fd5> <pcomp> <accomp>]
Apr  7 18:50:34 skyshouter pppd[26918]: sent [LCP ConfReq id=0x1
<asyncmap 0x0> <magic 0xf93b9fd5> <pcomp> <accomp>]
Apr  7 18:50:35 skyshouter isatapd[1712]:
add_router_name_to_internal_prl: isatap: No address associated with
hostname
Apr  7 18:50:35 skyshouter isatapd[1712]: Internal PRL empty!
Rechecking in 60 sec.
Apr  7 18:50:37 skyshouter pppd[26918]: sent [LCP ConfReq id=0x1
<asyncmap 0x0> <magic 0xf93b9fd5> <pcomp> <accomp>]
Apr  7 18:50:40 skyshouter pppd[26918]: LCP: timeout sending Config-Requests
Apr  7 18:50:40 skyshouter pppd[26918]: Connection terminated.
Apr  7 18:50:40 skyshouter avahi-daemon[1386]: Withdrawing workstation
service for ppp0.
Apr  7 18:50:40 skyshouter pppd[26918]: Modem hangup
Apr  7 18:50:40 skyshouter pppd[26918]: Waiting for 1 child processes...
Apr  7 18:50:40 skyshouter pppd[26918]:   script pptp 199.68.197.202
--nolaunchpppd, pid 26919
Apr  7 18:50:40 skyshouter pptp[26920]: anon
warn[decaps_hdlc:pptp_gre.c:204]: short read (-1): Input/output error
Apr  7 18:50:40 skyshouter pptp[26920]: anon
warn[decaps_hdlc:pptp_gre.c:216]: pppd may have shutdown, see pppd log
Apr  7 18:50:40 skyshouter pptp[26928]: anon
log[callmgr_main:pptp_callmgr.c:234]: Closing connection (unhandled)
Apr  7 18:50:40 skyshouter pptp[26928]: anon
log[ctrlp_rep:pptp_ctrl.c:251]: Sent control packet type is 12
'Call-Clear-Request'
Apr  7 18:50:40 skyshouter pptp[26928]: anon
log[call_callback:pptp_callmgr.c:79]: Closing connection (call state)
Apr  7 18:50:40 skyshouter pppd[26918]: Script pptp 199.68.197.202
--nolaunchpppd finished (pid 26919), status = 0x0
Apr  7 18:50:40 skyshouter pppd[26918]: Exit.

and the log on pptpd server is:

Apr  7 18:50:03 skyxen pptpd[2781]: CTRL: Client 121.0.29.193 control
connection started
Apr  7 18:50:04 skyxen pptpd[2781]: CTRL: Starting call (launching
pppd, opening GRE)
Apr  7 18:50:04 skyxen pppd[2782]: Plugin
/usr/lib/pptpd/pptpd-logwtmp.so loaded.
Apr  7 18:50:04 skyxen pppd[2782]: pptpd-logwtmp: $Version$
Apr  7 18:50:04 skyxen pppd[2782]: pppd 2.4.4 started by root, uid 0
Apr  7 18:50:04 skyxen pppd[2782]: using channel 36
Apr  7 18:50:04 skyxen pppd[2782]: Using interface ppp1
Apr  7 18:50:04 skyxen pppd[2782]: Connect: ppp1 <--> /dev/pts/1
Apr  7 18:50:04 skyxen pppd[2782]: sent [LCP ConfReq id=0x1 <asyncmap
0x0> <auth chap MS-v2> <magic 0xb21323fc> <pcomp> <accomp>]
Apr  7 18:50:04 skyxen pptpd[2781]: GRE: Bad checksum from pppd.
Apr  7 18:50:04 skyxen pppd[2782]: rcvd [LCP ConfReq id=0x1 <asyncmap
0x0> <magic 0xf93b9fd5> <pcomp> <accomp>]
Apr  7 18:50:04 skyxen pppd[2782]: sent [LCP ConfAck id=0x1 <asyncmap
0x0> <magic 0xf93b9fd5> <pcomp> <accomp>]
Apr  7 18:50:07 skyxen pppd[2782]: rcvd [LCP ConfReq id=0x1 <asyncmap
0x0> <magic 0xf93b9fd5> <pcomp> <accomp>]
Apr  7 18:50:07 skyxen pppd[2782]: sent [LCP ConfAck id=0x1 <asyncmap
0x0> <magic 0xf93b9fd5> <pcomp> <accomp>]
Apr  7 18:50:07 skyxen pppd[2782]: sent [LCP ConfReq id=0x1 <asyncmap
0x0> <auth chap MS-v2> <magic 0xb21323fc> <pcomp> <accomp>]
Apr  7 18:50:10 skyxen pppd[2782]: rcvd [LCP ConfReq id=0x1 <asyncmap
0x0> <magic 0xf93b9fd5> <pcomp> <accomp>]
Apr  7 18:50:10 skyxen pppd[2782]: sent [LCP ConfAck id=0x1 <asyncmap
0x0> <magic 0xf93b9fd5> <pcomp> <accomp>]
Apr  7 18:50:10 skyxen pppd[2782]: sent [LCP ConfReq id=0x1 <asyncmap
0x0> <auth chap MS-v2> <magic 0xb21323fc> <pcomp> <accomp>]
Apr  7 18:50:13 skyxen pppd[2782]: rcvd [LCP ConfReq id=0x1 <asyncmap
0x0> <magic 0xf93b9fd5> <pcomp> <accomp>]
Apr  7 18:50:13 skyxen pppd[2782]: sent [LCP ConfAck id=0x1 <asyncmap
0x0> <magic 0xf93b9fd5> <pcomp> <accomp>]
Apr  7 18:50:13 skyxen pppd[2782]: sent [LCP ConfReq id=0x1 <asyncmap
0x0> <auth chap MS-v2> <magic 0xb21323fc> <pcomp> <accomp>]
Apr  7 18:50:16 skyxen pppd[2782]: rcvd [LCP ConfReq id=0x1 <asyncmap
0x0> <magic 0xf93b9fd5> <pcomp> <accomp>]
Apr  7 18:50:16 skyxen pppd[2782]: sent [LCP ConfAck id=0x1 <asyncmap
0x0> <magic 0xf93b9fd5> <pcomp> <accomp>]
Apr  7 18:50:16 skyxen pppd[2782]: sent [LCP ConfReq id=0x1 <asyncmap
0x0> <auth chap MS-v2> <magic 0xb21323fc> <pcomp> <accomp>]
Apr  7 18:50:19 skyxen pppd[2782]: rcvd [LCP ConfReq id=0x1 <asyncmap
0x0> <magic 0xf93b9fd5> <pcomp> <accomp>]
Apr  7 18:50:19 skyxen pppd[2782]: sent [LCP ConfAck id=0x1 <asyncmap
0x0> <magic 0xf93b9fd5> <pcomp> <accomp>]
Apr  7 18:50:19 skyxen pppd[2782]: sent [LCP ConfReq id=0x1 <asyncmap
0x0> <auth chap MS-v2> <magic 0xb21323fc> <pcomp> <accomp>]
Apr  7 18:50:22 skyxen pppd[2782]: rcvd [LCP ConfReq id=0x1 <asyncmap
0x0> <magic 0xf93b9fd5> <pcomp> <accomp>]
Apr  7 18:50:22 skyxen pppd[2782]: sent [LCP ConfAck id=0x1 <asyncmap
0x0> <magic 0xf93b9fd5> <pcomp> <accomp>]
Apr  7 18:50:22 skyxen pppd[2782]: sent [LCP ConfReq id=0x1 <asyncmap
0x0> <auth chap MS-v2> <magic 0xb21323fc> <pcomp> <accomp>]
Apr  7 18:50:25 skyxen pppd[2782]: rcvd [LCP ConfReq id=0x1 <asyncmap
0x0> <magic 0xf93b9fd5> <pcomp> <accomp>]
Apr  7 18:50:25 skyxen pppd[2782]: sent [LCP ConfAck id=0x1 <asyncmap
0x0> <magic 0xf93b9fd5> <pcomp> <accomp>]
Apr  7 18:50:25 skyxen pppd[2782]: sent [LCP ConfReq id=0x1 <asyncmap
0x0> <auth chap MS-v2> <magic 0xb21323fc> <pcomp> <accomp>]
Apr  7 18:50:28 skyxen pppd[2782]: rcvd [LCP ConfReq id=0x1 <asyncmap
0x0> <magic 0xf93b9fd5> <pcomp> <accomp>]
Apr  7 18:50:28 skyxen pppd[2782]: sent [LCP ConfAck id=0x1 <asyncmap
0x0> <magic 0xf93b9fd5> <pcomp> <accomp>]
Apr  7 18:50:28 skyxen pppd[2782]: sent [LCP ConfReq id=0x1 <asyncmap
0x0> <auth chap MS-v2> <magic 0xb21323fc> <pcomp> <accomp>]
Apr  7 18:50:31 skyxen pppd[2782]: rcvd [LCP ConfReq id=0x1 <asyncmap
0x0> <magic 0xf93b9fd5> <pcomp> <accomp>]
Apr  7 18:50:31 skyxen pppd[2782]: sent [LCP ConfAck id=0x1 <asyncmap
0x0> <magic 0xf93b9fd5> <pcomp> <accomp>]
Apr  7 18:50:31 skyxen pppd[2782]: sent [LCP ConfReq id=0x1 <asyncmap
0x0> <auth chap MS-v2> <magic 0xb21323fc> <pcomp> <accomp>]
Apr  7 18:50:34 skyxen pptpd[2781]: CTRL: Reaping child PPP[2782]
Apr  7 18:50:34 skyxen pppd[2782]: Modem hangup
Apr  7 18:50:34 skyxen pppd[2782]: Connection terminated.
Apr  7 18:50:34 skyxen pppd[2782]: Exit.
Apr  7 18:50:34 skyxen pptpd[2781]: CTRL: Client 121.0.29.193 control
connection finished

And the strange thing is: I can establish the connection successfully
by using Windows box(both Windows XP and Windows 7) in the same LAN.
Can anyone give me some clue?

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