Re: [Poptop-server] Problem connecting to pptpd server

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Hi,

Following an intuition, I changed some parameters on the firewall and 
there was a remaining masquerade parameter that was messing up the whole 
thing.

Now, the logs are a bit different :

May 16 22:58:14 mercure pptpd[1417]: MGR: connections limit (100) 
reached, extra IP addresses ignored
May 16 22:58:14 mercure pptpd[1418]: MGR: Manager process started
May 16 22:58:14 mercure pptpd[1418]: MGR: Maximum of 100 connections 
available
May 16 22:58:17 mercure pptpd[1420]: CTRL: Client 88.190.22.113 control 
connection started
May 16 22:58:18 mercure pptpd[1420]: CTRL: Starting call (launching 
pppd, opening GRE)
May 16 22:58:18 mercure pppd[1421]: In file /etc/ppp/options.pptpd: 
unrecognized option '-chapms'
May 16 22:58:18 mercure pptpd[1420]: GRE: 
read(fd=6,buffer=6124a0,len=8196) from PTY failed: status = -1 error = 
Input/output error, usually caused by unexpected termination of pppd, 
check option syntax and pppd logs
May 16 22:58:18 mercure pptpd[1420]: CTRL: PTY read or GRE write failed 
(pty,gre)=(6,7)
May 16 22:58:18 mercure pptpd[1420]: CTRL: Client 88.190.22.113 control 
connection finished

I'll try to dig a little on my side but if you have any clue...

@Charlie: I tried to setup openvpn and experienced the same problem (as 
explained it was a network issue and not a pptp one).
I would prefer to setup pptp because I want to connect a remote router 
that only manage pptp and not openvpn.

Pierre-Gildas MILLON

Le 16/05/2014 16:17, Charlie Brady a écrit :
>
>
>
> On Fri, May 16, 2014 at 9:47 AM, Pierre-Gildas MILLON 
> <pg....@gm... <mailto:pg....@gm...>> wrote:
>
>     I updated the paste as you suggested (-f -s 200).
>
>
> The connection was closed by the remote end. You'll need to diagnose 
> the issue there.
>
> But before doing that you should seriously consider using openvpn (or 
> something else) instead.
>
> 23256 select(5, [0 4], [], NULL, NULL)  = 1 (in [0])
> 23256 read(0, 0xc575a0, 512)            = -1 ECONNRESET (Connection 
> reset by peer)
> 23256 time([1400247963])                = 1400247963
> 23256 sendto(3, "<29>May 16 15:46:03 pptp[23256]: anon 
> log[pptp_read_some:pptp_ctrl.c:551]: read error: Connection reset by 
> peer", 111, MSG_NOSIGNAL, NULL, 0) = 111
> 23256 rt_sigaction(SIGINT, {0x40a4f6, [INT], SA_RESTORER|SA_RESTART, 
> 0x7fbea86154f0}, {0x40a4dc, [INT], SA_RESTORER|SA_RESTART, 
> 0x7fbea86154f0}, 8) = 0
> 23256 rt_sigaction(SIGTERM, {0x40a4f6, [TERM], SA_RESTORER|SA_RESTART, 
> 0x7fbea86154f0}, {0x40a4dc, [TERM], SA_RESTORER|SA_RESTART, 
> 0x7fbea86154f0}, 8) = 0
> 23256 select(5, [0 4], [], NULL, {0, 0}) = 1 (in [0], left {0, 0})
> 23256 read(0, "", 512)                  = 0
> 23256 time([1400247963])                = 1400247963
> 23256 sendto(3, "<29>May 16 15:46:03 pptp[23256]: anon 
> log[pptp_read_some:pptp_ctrl.c:544]: read returned zero, peer has 
> closed", 110, MSG_NOSIGNAL, NULL, 0) = 110
>
>     Pierre-Gildas MILLON
>
>     Le 16/05/2014 15:06, Charlie Brady a écrit :
>>
>>
>>
>>     On Fri, May 16, 2014 at 6:43 AM, Pierre-Gildas MILLON
>>     <pg....@gm... <mailto:pg....@gm...>> wrote:
>>
>>         Thanks for the quick answer,
>>
>>         Here's the strace: http://pastebin.com/W8Bck12t
>>
>>         I've no idea what to look for :/
>>
>>
>>     You'll need to use -f to trace child processes. And it would be a
>>     good idea to use "-s NNN" with some NNN > 100, so that you can
>>     read the text of log messages.
>>
>>
>>
>>         Pierre-Gildas MILLON
>>
>>         Le 16/05/2014 12:32, James Cameron a écrit :
>>         > On Fri, May 16, 2014 at 12:07:26PM +0200, Pierre-Gildas
>>         MILLON wrote:
>>         >> anon fatal[open_callmgr:pptp.c:495]: Could not launch call
>>         manager after
>>         >> 3 tries.
>>         > That will do it.
>>         >
>>         > Diagnose next with strace before pppd, find out what is
>>         happening to
>>         > prevent call manager start.
>>         >
>>
>>
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>
>
> This e-mail (including any attachments) is for the sole use of the 
> intended recipient(s) and may contain information that is confidential 
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