PPTP VPN Client Error Message

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hchris
Posts: 1
Joined: 2015/12/25 16:42:55

PPTP VPN Client Error Message

Postby hchris » 2015/12/25 17:14:32

PPTP VPN server and PPTP VPN client have been set up on two CentOS hosts.
Below error message captured from the PPTP VPN Client /var/log/messages. I suspected it could fail in session negotiation aroung 17:57 later and finally timer was expired and the PPTP works abnormally. I am not sure what it means for below red message. Can anyone help the root cause and how to fix this issue ?

Dec 25 17:53:18 localhost pppd[30721]: CHAP authentication succeeded
Dec 25 17:53:18 localhost pppd[30721]: MPPE 128-bit stateless compression enabled
Dec 25 17:53:18 localhost pppd[30721]: local IP address 172.30.2.226
Dec 25 17:53:18 localhost pppd[30721]: remote IP address 172.30.2.2
Dec 25 17:53:20 localhost ntpd[1490]: Listen normally on 12 ppp0 172.30.2.226 UDP 123
Dec 25 17:53:20 localhost ntpd[1490]: peers refreshed
Dec 25 17:54:15 localhost pptp[30730]: anon log[logecho:pptp_ctrl.c:677]: Echo Reply received.
Dec 25 17:55:15 localhost pptp[30730]: anon log[logecho:pptp_ctrl.c:677]: Echo Reply received.
Dec 25 17:56:15 localhost pptp[30730]: anon log[logecho:pptp_ctrl.c:677]: Echo Reply received.
Dec 25 17:57:15 localhost pptp[30730]: anon log[logecho:pptp_ctrl.c:677]: Echo Reply received.
Dec 25 17:58:07 localhost kernel: pvcd[24251]: segfault at fffffffd ip 00007fc03059b93c sp 00007fc022587568 error 4 in libc
-2.12.so[7fc030520000+18a000]

Dec 25 17:58:15 localhost pptp[30730]: anon log[logecho:pptp_ctrl.c:677]: Echo Reply received.
Dec 25 17:59:15 localhost pptp[30730]: anon log[logecho:pptp_ctrl.c:677]: Echo Reply received.
Dec 25 18:00:15 localhost pptp[30730]: anon log[logecho:pptp_ctrl.c:677]: Echo Reply received.
Dec 25 18:01:15 localhost pptp[30730]: anon log[logecho:pptp_ctrl.c:677]: Echo Reply received.
Dec 25 18:02:15 localhost pptp[30730]: anon log[logecho:pptp_ctrl.c:677]: Echo Reply received.
Dec 25 18:03:15 localhost pptp[30730]: anon log[logecho:pptp_ctrl.c:677]: Echo Reply received.
Dec 25 18:03:15 localhost pptp[30730]: anon log[logecho:pptp_ctrl.c:679]: no more Echo Reply/Request packets will be report
ed.

aks
Posts: 2498
Joined: 2014/09/20 11:22:14

Re: PPTP VPN Client Error Message

Postby aks » 2015/12/27 17:11:54

That means pvcd crashed (probably trying to write to somebody elses memory). Where did you get your PPTP client from?