[pptp-server] EOF or bad error reading ctrl packet length

[Frederic SOULIER]

Hello there,

 I use a PPTP client (Win98SE standard MS VPN adapter) and a PPTP server
(PoPToP 1.0.1 with Linux 2.2.13 kernel). Sometimes PPTP tunnel is broken
and I have the following logs :

May 11 01:31:31 myserver pptpd[5606]: MGR: Manager process started
May 11 01:31:45 myserver pptpd[5653]: CTRL: Client xxx.xxx.xxx.xxx
control connection started
May 11 01:31:46 myserver pptpd[5653]: CTRL: Starting call (launching
pppd, opening GRE)
May 11 02:04:16 myserver pptpd[5653]: CTRL: EOF or bad error reading
ctrl packet length.
May 11 02:04:16 myserver pptpd[5653]: CTRL: couldn't read packet header
(exit)
May 11 02:04:16 myserver pptpd[5653]: CTRL: CTRL read failed
May 11 02:04:16 myserver pptpd[5653]: CTRL: Client xxx.xxx.xxx.xxx
control connection finished

(Sometimes is quite variable : tunnel breaking may happen after 10
minutes, one hour, or more...)

I saw in this list' archives some errors like this but even with PoPToP
1.2.1 (upgrading was often the solution) I have this kind of problems.

Any idea ?

Thanks a lot,


Frederic