[pptp-devel] Re: LCP: timeout sending Config-Requests

[Jan O. <ob...@da...>]

I am encountering the same problem and posted that a few days ago. See 
http://sourceforge.net/mailarchive/forum.php?thread_id=2852729&forum_id=773 
from the archives.

This is my tcpdump, it is not filtered. Maybe it contains some "noise". 
Hope that helps:

pptpclient is brainbug.datenwelt.net, win2003-pptp-server is 
213.239.192.78.1723

% tcpdump -i eth0 not port 22
12:04:38.886083 brainbug.datenwelt.net.32788 > 213.239.192.78.1723: S 
2153979753:2153979753(0) win 5840 <mss 1460,sackOK,timestamp 17710275 
0,nop,wscale 0> (DF)
12:04:38.887025 brainbug.datenwelt.net.32768 > 
alberich.datenwelt.net.domain:  25999+ PTR? 2.88.138.193.in-addr.arpa. 
(43) (DF)
12:04:38.888408 alberich.datenwelt.net.domain > 
brainbug.datenwelt.net.32768:  25999 1/2/2 (151) (DF)
12:04:38.889592 brainbug.datenwelt.net.32768 > 
alberich.datenwelt.net.domain:  26000+ PTR? 78.192.239.213.in-addr.arpa. 
(45) (DF)
12:04:38.890054 alberich.datenwelt.net.domain > 
brainbug.datenwelt.net.32768:  26000 NXDomain 0/1/0 (110) (DF)
12:04:38.890933 brainbug.datenwelt.net.32768 > 
alberich.datenwelt.net.domain:  26001+ PTR? 253.88.138.193.in-addr.arpa. 
(45) (DF)
12:04:38.891605 alberich.datenwelt.net.domain > 
brainbug.datenwelt.net.32768:  26001 1/2/2 (153) (DF)
12:04:38.897186 213.239.192.78.1723 > brainbug.datenwelt.net.32788: S 
3535733211:3535733211(0) ack 2153979754 win 17520 <mss 1460,nop,wscale 
0,nop,nop,timestamp 0 0,nop,nop,sackOK> (DF)
12:04:38.897243 brainbug.datenwelt.net.32788 > 213.239.192.78.1723: . 
ack 1 win 5840 <nop,nop,timestamp 17710276 0> (DF)
12:04:38.902940 brainbug.datenwelt.net.32788 > 213.239.192.78.1723: P 
1:157(156) ack 1 win 5840 <nop,nop,timestamp 17710276 0> (DF)
12:04:38.913334 213.239.192.78.1723 > brainbug.datenwelt.net.32788: P 
1:157(156) ack 157 win 17364 <nop,nop,timestamp 2889958 17710276> (DF)
12:04:38.913384 brainbug.datenwelt.net.32788 > 213.239.192.78.1723: . 
ack 157 win 6432 <nop,nop,timestamp 17710277 2889958> (DF)
12:04:39.905480 brainbug.datenwelt.net.32788 > 213.239.192.78.1723: P 
157:325(168) ack 157 win 6432 <nop,nop,timestamp 17710377 2889958> (DF)
12:04:40.115382 brainbug.datenwelt.net.32788 > 213.239.192.78.1723: P 
157:325(168) ack 157 win 6432 <nop,nop,timestamp 17710398 2889958> (DF)
12:04:40.535380 brainbug.datenwelt.net.32788 > 213.239.192.78.1723: P 
157:325(168) ack 157 win 6432 <nop,nop,timestamp 17710440 2889958> (DF)
12:04:41.375380 brainbug.datenwelt.net.32788 > 213.239.192.78.1723: P 
157:325(168) ack 157 win 6432 <nop,nop,timestamp 17710524 2889958> (DF)
12:04:43.055380 brainbug.datenwelt.net.32788 > 213.239.192.78.1723: P 
157:325(168) ack 157 win 6432 <nop,nop,timestamp 17710692 2889958> (DF)
12:04:46.415383 brainbug.datenwelt.net.32788 > 213.239.192.78.1723: P 
157:325(168) ack 157 win 6432 <nop,nop,timestamp 17711028 2889958> (DF)
12:04:53.135381 brainbug.datenwelt.net.32788 > 213.239.192.78.1723: P 
157:325(168) ack 157 win 6432 <nop,nop,timestamp 17711700 2889958> (DF)
12:04:53.363055 213.239.192.78.1723 > brainbug.datenwelt.net.32787: P 
3631774404:3631774420(16) ack 2049668230 win 17364 <nop,nop,timestamp 
2890103 17699726> (DF)
12:04:53.363069 brainbug.datenwelt.net.32787 > 213.239.192.78.1723: R 
2049668230:2049668230(0) win 0 (DF)
12:05:06.575381 brainbug.datenwelt.net.32788 > 213.239.192.78.1723: P 
157:325(168) ack 157 win 6432 <nop,nop,timestamp 17713044 2889958> (DF)



Doug Langille wrote:

> On Wed, 2003-07-30 at 22:20, James Cameron wrote:
> 
>>On Wed, Jul 30, 2003 at 10:32:06AM -0300, Doug Langille wrote:
>>
>>>Arghh! This *was* working before my kernel upgrade (yes, the module
>>>loads OK, etc.)
>>
>>What was done in the upgrade process?  What was the version before, and
>>the version now?  How did you upgrade the MPPE kernel module?
>>
>
> 
> RPMs only... removed kernel module and all pptp components. Reinstalled
> all components per instructions. Modprobe, etc went fine
> 
> 
>>>*** debug
>>>sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0xac32c632> <pcomp>
>>><accomp>]
>>>sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0xac32c632> <pcomp>
>>><accomp>]
>>>sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0xac32c632> <pcomp>
>>><accomp>]
>>
>>It's not seeing anything come back.
>>
>>
>>>**** tcpdump
>>
>>The port 1723 traffic is there.  But there's no GRE traffic?  Why?
>>Did you restrict the tcpdump somehow?
>>
> 
> 
> tcpdump eth1 unrestricted.. I removed GRE traffic from other clients for
> clarity, but there was none for this host.
> 
> no firewall in place, ipchains/tables off-line
> 
> 
>>The PPTP client is sending multiple outgoing call requests, but not
>>receiving any replies.
>>
>>Did you change the version of PPTP client at all?
> 
> 
> yup, latest greatest.
> 
> 
> 
> 
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