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List:       pptpclient-devel
Subject:    [pptp-devel]  Config-Requests not reaching the server?
From:       aditsu <aditsu () yahoo ! com>
Date:       2008-10-25 16:46:52
Message-ID: 20165801.post () talk ! nabble ! com
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Hi, I set up a vpn connection and it used to work, but it stopped working a
few days ago.
Here's the debug output (with sensitive information replaced):

# pon vpn_name debug dump logfd 2 nodetach
pppd options in effect:
debug           # (from command line)
nodetach                # (from command line)
logfd 2         # (from command line)
dump            # (from command line)
noauth          # (from /etc/ppp/options.vpn_name)
name domain\\user          # (from /etc/ppp/peers/vpn_name)
remotename vpn_name          # (from /etc/ppp/peers/vpn_name)
                # (from /etc/ppp/options.vpn_name)
pty pptp vpn_server --nolaunchpppd         # (from /etc/ppp/peers/vpn_name)
mru 1000                # (from /etc/ppp/options.vpn_name)
mtu 1000                # (from /etc/ppp/options.vpn_name)
lcp-echo-failure 10             # (from /etc/ppp/options.vpn_name)
lcp-echo-interval 10            # (from /etc/ppp/options.vpn_name)
ipparam vpn_name             # (from /etc/ppp/peers/vpn_name)
nobsdcomp               # (from /etc/ppp/options.vpn_name)
nodeflate               # (from /etc/ppp/options.vpn_name)
using channel 2332
Using interface ppp0
Connect: ppp0 <--> /dev/pts/3
sent [LCP ConfReq id=0x1 <mru 1000> <asyncmap 0x0> <magic 0xf8bd3634>
<pcomp> <accomp>]
sent [LCP ConfReq id=0x1 <mru 1000> <asyncmap 0x0> <magic 0xf8bd3634>
<pcomp> <accomp>]
sent [LCP ConfReq id=0x1 <mru 1000> <asyncmap 0x0> <magic 0xf8bd3634>
<pcomp> <accomp>]
sent [LCP ConfReq id=0x1 <mru 1000> <asyncmap 0x0> <magic 0xf8bd3634>
<pcomp> <accomp>]
sent [LCP ConfReq id=0x1 <mru 1000> <asyncmap 0x0> <magic 0xf8bd3634>
<pcomp> <accomp>]
sent [LCP ConfReq id=0x1 <mru 1000> <asyncmap 0x0> <magic 0xf8bd3634>
<pcomp> <accomp>]
sent [LCP ConfReq id=0x1 <mru 1000> <asyncmap 0x0> <magic 0xf8bd3634>
<pcomp> <accomp>]
sent [LCP ConfReq id=0x1 <mru 1000> <asyncmap 0x0> <magic 0xf8bd3634>
<pcomp> <accomp>]
sent [LCP ConfReq id=0x1 <mru 1000> <asyncmap 0x0> <magic 0xf8bd3634>
<pcomp> <accomp>]
sent [LCP ConfReq id=0x1 <mru 1000> <asyncmap 0x0> <magic 0xf8bd3634>
<pcomp> <accomp>]
LCP: timeout sending Config-Requests
Connection terminated.
Modem hangup
Waiting for 1 child processes...
  script pptp vpn_server --nolaunchpppd, pid 13601
Script pptp vpn_server --nolaunchpppd finished (pid 13601), status = 0x0

I ran tcpdump and wireshark and I can see GRE packets going out. I also have
access to the server, and I ran wireshark there and got no GRE packets at
all.
I connected from a windows computer in the same network as the linux one,
and everything was fine, connection established, and I could see the GRE
packets on the server.
What could be the problem?

Thanks
Adrian
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