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VPN-problem

Postat: 13 jul 2014, 10:55
av ZhangJike88
Jag har Ubuntu 14.04 LTS och skulle sätta upp en VPN-anslutning. Men av någon anledning så blir jag frånkopplad efter ca 1-2 minuter. Det står "Connection to the VPN connection has failed".

Det är en PPTP VPN, och jag använder en Netgear WNR2000 router med 100/10 fiberlina.

Hur löser jag detta?

Re: VPN-problem

Postat: 13 jul 2014, 11:30
av andol
Du börjar med att ge oss lite mer information :)

Antar att det är Netgearen som agerar VPN-server, och att det är Ubuntu-datorn som försöker initiera PPTN-kopplet?

Under de där 1-2 minuterna fram till att du får felmeddelandet, har du då en uppkoppling via VPN:et? Alltså, är det så att du först lyckas ansluta och sen tappar anslutningen eller är det så att datorn försöker upprätta en anslutning om och om igen, och sen ger upp?

Vilka inställningar har du gjort var för att säga åt Ubuntu-datorn att upprätta ett PPTN-koppel?

Någon loggfil som innehåller någon relevant felinfo? Ifall du använder dig utav NetworkManagers PPTP-funktionalitet så torde du ha något i /var/log/syslog.

Utanför ämnet: Ifall du ställer en fråga på IRC så är det inte dumt att hänga kvar längre än fem minuter. Vi är rätt många som har irc-kanalen igång i bakgrunden, men som mest tittar till den lite från och till.

Re: VPN-problem

Postat: 13 jul 2014, 13:12
av ZhangJike88
Nej, VPN-anslutningen är Bahnhofs Integrity VPN : https://www.bahnhof.se/kundservice/privat

Har som jag nämnde tidigare en stabil anslutning i 1-2 minuter, sedan kopplas jag från. De anslutningar som jag gjort är enligt deras guide för Ubuntu.

Hur får jag detta att fungera?

Re: VPN-problem

Postat: 13 jul 2014, 13:52
av andol
Vad säger /var/log/syslog?

Re: VPN-problem

Postat: 13 jul 2014, 17:06
av ZhangJike88
Hur kollar jag det?

Re: VPN-problem

Postat: 16 jul 2014, 07:00
av johanre
T.ex. från terminalen:

Kod: Markera allt

gedit /var/log/syslog
- så får du upp ett föster där du kan bläddra igenom loggen. Gör dock inte detta som root-användaren. :)

Re: VPN-problem

Postat: 19 jul 2014, 10:08
av ZhangJike88
Hej, har kört terminalen och fått följande meddelande:

Jul 19 09:48:53 -HP-Compaq-8000-Elite-SFF-PC rsyslogd: [origin software="rsyslogd" swVersion="7.4.4" x-pid="721" x-info="http://www.rsyslog.com"] rsyslogd was HUPed
Jul 19 09:50:04 -HP-Compaq-8000-Elite-SFF-PC anacron[909]: Job `cron.daily' terminated
Jul 19 09:50:04 -HP-Compaq-8000-Elite-SFF-PC anacron[909]: Normal exit (1 job run)
Jul 19 10:00:07 -HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: <info> Starting VPN service 'pptp'...
Jul 19 10:00:07 -HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: <info> VPN service 'pptp' started (org.freedesktop.NetworkManager.pptp), PID 3107
Jul 19 10:00:07 -HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: <info> VPN service 'pptp' appeared; activating connections
Jul 19 10:00:07 -HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: <info> VPN plugin state changed: init (1)
Jul 19 10:00:07 -HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: <info> VPN plugin state changed: starting (3)
Jul 19 10:00:07 -HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: <info> VPN connection 'Integrity' (Connect) reply received.
Jul 19 10:00:07 -HP-Compaq-8000-Elite-SFF-PC pppd[3113]: Plugin /usr/lib/pppd/2.4.5/nm-pptp-pppd-plugin.so loaded.
Jul 19 10:00:07 -HP-Compaq-8000-Elite-SFF-PC pppd[3113]: pppd 2.4.5 started by root, uid 0
Jul 19 10:00:07 -HP-Compaq-8000-Elite-SFF-PC pptp[3117]: nm-pptp-service-3107 log[main:pptp.c:314]: The synchronous pptp option is NOT activated
Jul 19 10:00:07 -HP-Compaq-8000-Elite-SFF-PC pppd[3113]: Using interface ppp0
Jul 19 10:00:07 -HP-Compaq-8000-Elite-SFF-PC pppd[3113]: Connect: ppp0 <--> /dev/pts/11
Jul 19 10:00:07 -HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: SCPlugin-Ifupdown: devices added (path: /sys/devices/virtual/net/ppp0, iface: ppp0)
Jul 19 10:00:07 -HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: SCPlugin-Ifupdown: device added (path: /sys/devices/virtual/net/ppp0, iface: ppp0): no ifupdown configuration found.
Jul 19 10:00:07 -HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: <warn> /sys/devices/virtual/net/ppp0: couldn't determine device driver; ignoring...
Jul 19 10:00:07 -HP-Compaq-8000-Elite-SFF-PC pptp[3134]: nm-pptp-service-3107 log[ctrlp_rep:pptp_ctrl.c:251]: Sent control packet type is 1 'Start-Control-Connection-Request'
Jul 19 10:00:07 -HP-Compaq-8000-Elite-SFF-PC pptp[3134]: nm-pptp-service-3107 log[ctrlp_disp:pptp_ctrl.c:739]: Received Start Control Connection Reply
Jul 19 10:00:07 -HP-Compaq-8000-Elite-SFF-PC pptp[3134]: nm-pptp-service-3107 log[ctrlp_disp:pptp_ctrl.c:773]: Client connection established.
Jul 19 10:00:08 -HP-Compaq-8000-Elite-SFF-PC pptp[3134]: nm-pptp-service-3107 log[ctrlp_rep:pptp_ctrl.c:251]: Sent control packet type is 7 'Outgoing-Call-Request'
Jul 19 10:00:08 -HP-Compaq-8000-Elite-SFF-PC pptp[3134]: nm-pptp-service-3107 log[ctrlp_disp:pptp_ctrl.c:858]: Received Outgoing Call Reply.
Jul 19 10:00:08 -HP-Compaq-8000-Elite-SFF-PC pptp[3134]: nm-pptp-service-3107 log[ctrlp_disp:pptp_ctrl.c:897]: Outgoing call established (call ID 0, peer's call ID 14464).
Jul 19 10:00:09 -HP-Compaq-8000-Elite-SFF-PC pppd[3113]: CHAP authentication succeeded
Jul 19 10:00:09 -HP-Compaq-8000-Elite-SFF-PC kernel: [ 1409.872917] PPP MPPE Compression module registered
Jul 19 10:00:09 -HP-Compaq-8000-Elite-SFF-PC pppd[3113]: MPPE 128-bit stateless compression enabled
Jul 19 10:00:09 -HP-Compaq-8000-Elite-SFF-PC pppd[3113]: local IP address 10.252.0.4
Jul 19 10:00:09 -HP-Compaq-8000-Elite-SFF-PC pppd[3113]: remote IP address 10.252.0.1
Jul 19 10:00:09 -HP-Compaq-8000-Elite-SFF-PC pppd[3113]: primary DNS address 213.80.98.2
Jul 19 10:00:09 -HP-Compaq-8000-Elite-SFF-PC pppd[3113]: secondary DNS address 213.80.101.3
Jul 19 10:00:09 -HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: <info> VPN connection 'Integrity' (IP4 Config Get) reply received from old-style plugin.
Jul 19 10:00:09 -HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: <info> VPN Gateway: 94.254.51.211
Jul 19 10:00:09 -HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: <info> Tunnel Device: ppp0
Jul 19 10:00:09 -HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: <info> IPv4 configuration:
Jul 19 10:00:09 -HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: <info> Internal Address: 10.252.0.4
Jul 19 10:00:09 -HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: <info> Internal Prefix: 32
Jul 19 10:00:09 -HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: <info> Internal Point-to-Point Address: 10.252.0.1
Jul 19 10:00:09 -HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: <info> Maximum Segment Size (MSS): 0
Jul 19 10:00:09 -HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: <info> Forbid Default Route: no
Jul 19 10:00:09 -HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: <info> Internal DNS: 213.80.98.2
Jul 19 10:00:09 -HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: <info> Internal DNS: 213.80.101.3
Jul 19 10:00:09 -HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: <info> DNS Domain: '(none)'
Jul 19 10:00:09 -HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: <info> No IPv6 configuration
Jul 19 10:00:10 -HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: <info> VPN connection 'Integrity' (IP Config Get) complete.
Jul 19 10:00:10 -HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: <info> Policy set 'Integrity' (ppp0) as default for IPv4 routing and DNS.
Jul 19 10:00:10 -HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: <info> Writing DNS information to /sbin/resolvconf
Jul 19 10:00:10 -HP-Compaq-8000-Elite-SFF-PC dnsmasq[1172]: setting upstream servers from DBus
Jul 19 10:00:10 -HP-Compaq-8000-Elite-SFF-PC dnsmasq[1172]: using nameserver 213.80.101.3#53
Jul 19 10:00:10 -HP-Compaq-8000-Elite-SFF-PC dnsmasq[1172]: using nameserver 213.80.98.2#53
Jul 19 10:00:10 -HP-Compaq-8000-Elite-SFF-PC pptp[3117]: nm-pptp-service-3107 warn[decaps_gre:pptp_gre.c:331]: short read (-1): Message too long
Jul 19 10:00:10 -HP-Compaq-8000-Elite-SFF-PC pptp[3134]: nm-pptp-service-3107 log[callmgr_main:pptp_callmgr.c:234]: Closing connection (unhandled)
Jul 19 10:00:10 -HP-Compaq-8000-Elite-SFF-PC pppd[3113]: Modem hangup
Jul 19 10:00:10 -HP-Compaq-8000-Elite-SFF-PC pptp[3134]: nm-pptp-service-3107 log[ctrlp_rep:pptp_ctrl.c:251]: Sent control packet type is 12 'Call-Clear-Request'
Jul 19 10:00:10 -HP-Compaq-8000-Elite-SFF-PC pptp[3134]: nm-pptp-service-3107 log[call_callback:pptp_callmgr.c:79]: Closing connection (call state)
Jul 19 10:00:10 -HP-Compaq-8000-Elite-SFF-PC pppd[3113]: Connect time 0.1 minutes.
Jul 19 10:00:10 -HP-Compaq-8000-Elite-SFF-PC pppd[3113]: Sent 5042 bytes, received 0 bytes.
Jul 19 10:00:10 -HP-Compaq-8000-Elite-SFF-PC pppd[3113]: MPPE disabled
Jul 19 10:00:10 mikael-HP-Compaq-8000-Elite-SFF-PC pppd[3113]: Connection terminated.
Jul 19 10:00:10 -HP-Compaq-8000-Elite-SFF-PC avahi-daemon[758]: Withdrawing workstation service for ppp0.
Jul 19 10:00:09 -HP-Compaq-8000-Elite-SFF-PC whoopsie[1087]: message repeated 5 times: [ online]
Jul 19 10:00:10 -HP-Compaq-8000-Elite-SFF-PC whoopsie[1087]: offline
Jul 19 10:00:10 -HP-Compaq-8000-Elite-SFF-PC dbus[648]: [system] Activating service name='org.freedesktop.nm_dispatcher' (using servicehelper)
Jul 19 10:00:10 -HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: <info> VPN plugin state changed: started (4)
Jul 19 10:00:10 -HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: SCPlugin-Ifupdown: devices removed (path: /sys/devices/virtual/net/ppp0, iface: ppp0)
Jul 19 10:00:10 -HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: <info> VPN plugin state changed: stopping (5)
Jul 19 10:00:10 -HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: <info> VPN plugin state changed: stopped (6)
Jul 19 10:00:10 -HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: <info> VPN plugin state change reason: 0
Jul 19 10:00:10 -HP-Compaq-8000-Elite-SFF-PC avahi-daemon[758]: Withdrawing address record for 192.168.1.4 on eth0.
Jul 19 10:00:10 -HP-Compaq-8000-Elite-SFF-PC avahi-daemon[758]: Leaving mDNS multicast group on interface eth0.IPv4 with address 192.168.1.4.
Jul 19 10:00:10 -HP-Compaq-8000-Elite-SFF-PC avahi-daemon[758]: Interface eth0.IPv4 no longer relevant for mDNS.
Jul 19 10:00:10 -HP-Compaq-8000-Elite-SFF-PC avahi-daemon[758]: Joining mDNS multicast group on interface eth0.IPv4 with address 192.168.1.4.
Jul 19 10:00:10 -HP-Compaq-8000-Elite-SFF-PC avahi-daemon[758]: New relevant interface eth0.IPv4 for mDNS.
Jul 19 10:00:10 -HP-Compaq-8000-Elite-SFF-PC avahi-daemon[758]: Registering new address record for 192.168.1.4 on eth0.IPv4.
Jul 19 10:00:10 -HP-Compaq-8000-Elite-SFF-PC pppd[3113]: Exit.
Jul 19 10:00:10 -HP-Compaq-8000-Elite-SFF-PC dbus[648]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher'
Jul 19 10:00:10 -HP-Compaq-8000-Elite-SFF-PC ntpdate[3213]: Can't find host ntp.ubuntu.com: Name or service not known (-2)
Jul 19 10:00:10 -HP-Compaq-8000-Elite-SFF-PC ntpdate[3213]: no servers can be used, exiting
Jul 19 10:00:11 -HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: <info> Policy set 'Wired connection 1' (eth0) as default for IPv4 routing and DNS.
Jul 19 10:00:11 HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: <info> Writing DNS information to /sbin/resolvconf

Vad får du ut av detta?

Re: VPN-problem

Postat: 19 jul 2014, 10:28
av andol
Fast det där ser bara ut att beröra den initiala VPN-uppkopplingen? Hur ser det ut minutrarna senare när du tappar länken?

Re: VPN-problem

Postat: 19 jul 2014, 10:35
av ZhangJike88
Här är syslogen 3 minuter efter den misslyckade anslutningen till min VPN:

Jul 19 10:00:10 mikael-HP-Compaq-8000-Elite-SFF-PC pptp[3134]: nm-pptp-service-3107 log[ctrlp_rep:pptp_ctrl.c:251]: Sent control packet type is 12 'Call-Clear-Request'
Jul 19 10:00:10 mikael-HP-Compaq-8000-Elite-SFF-PC pptp[3134]: nm-pptp-service-3107 log[call_callback:pptp_callmgr.c:79]: Closing connection (call state)
Jul 19 10:00:10 mikael-HP-Compaq-8000-Elite-SFF-PC pppd[3113]: Connect time 0.1 minutes.
Jul 19 10:00:10 mikael-HP-Compaq-8000-Elite-SFF-PC pppd[3113]: Sent 5042 bytes, received 0 bytes.
Jul 19 10:00:10 mikael-HP-Compaq-8000-Elite-SFF-PC pppd[3113]: MPPE disabled
Jul 19 10:00:10 mikael-HP-Compaq-8000-Elite-SFF-PC pppd[3113]: Connection terminated.
Jul 19 10:00:10 mikael-HP-Compaq-8000-Elite-SFF-PC avahi-daemon[758]: Withdrawing workstation service for ppp0.
Jul 19 10:00:09 mikael-HP-Compaq-8000-Elite-SFF-PC whoopsie[1087]: message repeated 5 times: [ online]
Jul 19 10:00:10 mikael-HP-Compaq-8000-Elite-SFF-PC whoopsie[1087]: offline
Jul 19 10:00:10 mikael-HP-Compaq-8000-Elite-SFF-PC dbus[648]: [system] Activating service name='org.freedesktop.nm_dispatcher' (using servicehelper)
Jul 19 10:00:10 mikael-HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: <info> VPN plugin state changed: started (4)
Jul 19 10:00:10 mikael-HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: SCPlugin-Ifupdown: devices removed (path: /sys/devices/virtual/net/ppp0, iface: ppp0)
Jul 19 10:00:10 mikael-HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: <info> VPN plugin state changed: stopping (5)
Jul 19 10:00:10 mikael-HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: <info> VPN plugin state changed: stopped (6)
Jul 19 10:00:10 mikael-HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: <info> VPN plugin state change reason: 0
Jul 19 10:00:10 mikael-HP-Compaq-8000-Elite-SFF-PC avahi-daemon[758]: Withdrawing address record for 192.168.1.4 on eth0.
Jul 19 10:00:10 mikael-HP-Compaq-8000-Elite-SFF-PC avahi-daemon[758]: Leaving mDNS multicast group on interface eth0.IPv4 with address 192.168.1.4.
Jul 19 10:00:10 mikael-HP-Compaq-8000-Elite-SFF-PC avahi-daemon[758]: Interface eth0.IPv4 no longer relevant for mDNS.
Jul 19 10:00:10 mikael-HP-Compaq-8000-Elite-SFF-PC avahi-daemon[758]: Joining mDNS multicast group on interface eth0.IPv4 with address 192.168.1.4.
Jul 19 10:00:10 mikael-HP-Compaq-8000-Elite-SFF-PC avahi-daemon[758]: New relevant interface eth0.IPv4 for mDNS.
Jul 19 10:00:10 mikael-HP-Compaq-8000-Elite-SFF-PC avahi-daemon[758]: Registering new address record for 192.168.1.4 on eth0.IPv4.
Jul 19 10:00:10 mikael-HP-Compaq-8000-Elite-SFF-PC pppd[3113]: Exit.
Jul 19 10:00:10 mikael-HP-Compaq-8000-Elite-SFF-PC dbus[648]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher'
Jul 19 10:00:10 mikael-HP-Compaq-8000-Elite-SFF-PC ntpdate[3213]: Can't find host ntp.ubuntu.com: Name or service not known (-2)
Jul 19 10:00:10 mikael-HP-Compaq-8000-Elite-SFF-PC ntpdate[3213]: no servers can be used, exiting
Jul 19 10:00:11 mikael-HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: <info> Policy set 'Wired connection 1' (eth0) as default for IPv4 routing and DNS.
Jul 19 10:00:11 mikael-HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: <info> Writing DNS information to /sbin/resolvconf
Jul 19 10:00:11 mikael-HP-Compaq-8000-Elite-SFF-PC dnsmasq[1172]: setting upstream servers from DBus
Jul 19 10:00:11 mikael-HP-Compaq-8000-Elite-SFF-PC dnsmasq[1172]: using nameserver 192.168.1.1#53
Jul 19 10:00:11 mikael-HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: <warn> error disconnecting VPN: Could not process the request because no VPN connection was active.
Jul 19 10:00:11 mikael-HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: <warn> (3) failed to find interface name for index
Jul 19 10:00:11 mikael-HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: nm_system_iface_flush_routes: assertion 'iface != NULL' failed
Jul 19 10:00:11 mikael-HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: <warn> (3) failed to find interface name for index
Jul 19 10:00:16 mikael-HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: <info> VPN service 'pptp' disappeared
Jul 19 10:00:10 mikael-HP-Compaq-8000-Elite-SFF-PC whoopsie[1087]: message repeated 4 times: [ offline]
Jul 19 10:00:16 mikael-HP-Compaq-8000-Elite-SFF-PC whoopsie[1087]: online
Jul 19 10:09:09 mikael-HP-Compaq-8000-Elite-SFF-PC kernel: [ 1949.888436] perf samples too long (2501 > 2500), lowering kernel.perf_event_max_sample_rate to 50000
Jul 19 10:17:01 mikael-HP-Compaq-8000-Elite-SFF-PC CRON[3395]: (root) CMD ( cd / && run-parts --report /etc/cron.hourly)
Jul 19 10:31:36 mikael-HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: <info> Starting VPN service 'pptp'...
Jul 19 10:31:36 mikael-HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: <info> VPN service 'pptp' started (org.freedesktop.NetworkManager.pptp), PID 3601
Jul 19 10:31:36 mikael-HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: <info> VPN service 'pptp' appeared; activating connections
Jul 19 10:31:36 mikael-HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: <info> VPN plugin state changed: init (1)
Jul 19 10:31:36 mikael-HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: <info> VPN plugin state changed: starting (3)
Jul 19 10:31:36 mikael-HP-Compaq-8000-Elite-SFF-PC pppd[3605]: Plugin /usr/lib/pppd/2.4.5/nm-pptp-pppd-plugin.so loaded.
Jul 19 10:31:36 mikael-HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: <info> VPN connection 'Integrity' (Connect) reply received.
Jul 19 10:31:36 mikael-HP-Compaq-8000-Elite-SFF-PC pppd[3605]: pppd 2.4.5 started by root, uid 0
Jul 19 10:31:36 mikael-HP-Compaq-8000-Elite-SFF-PC pppd[3605]: Using interface ppp0
Jul 19 10:31:36 mikael-HP-Compaq-8000-Elite-SFF-PC pppd[3605]: Connect: ppp0 <--> /dev/pts/2
Jul 19 10:31:36 mikael-HP-Compaq-8000-Elite-SFF-PC pptp[3608]: nm-pptp-service-3601 log[main:pptp.c:314]: The synchronous pptp option is NOT activated
Jul 19 10:31:36 mikael-HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: SCPlugin-Ifupdown: devices added (path: /sys/devices/virtual/net/ppp0, iface: ppp0)
Jul 19 10:31:36 mikael-HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: SCPlugin-Ifupdown: device added (path: /sys/devices/virtual/net/ppp0, iface: ppp0): no ifupdown configuration found.
Jul 19 10:31:36 mikael-HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: <warn> /sys/devices/virtual/net/ppp0: couldn't determine device driver; ignoring...
Jul 19 10:31:36 mikael-HP-Compaq-8000-Elite-SFF-PC pptp[3625]: nm-pptp-service-3601 log[ctrlp_rep:pptp_ctrl.c:251]: Sent control packet type is 1 'Start-Control-Connection-Request'
Jul 19 10:31:36 mikael-HP-Compaq-8000-Elite-SFF-PC pptp[3625]: nm-pptp-service-3601 log[ctrlp_disp:pptp_ctrl.c:739]: Received Start Control Connection Reply
Jul 19 10:31:36 mikael-HP-Compaq-8000-Elite-SFF-PC pptp[3625]: nm-pptp-service-3601 log[ctrlp_disp:pptp_ctrl.c:773]: Client connection established.
Jul 19 10:31:37 mikael-HP-Compaq-8000-Elite-SFF-PC pptp[3625]: nm-pptp-service-3601 log[ctrlp_rep:pptp_ctrl.c:251]: Sent control packet type is 7 'Outgoing-Call-Request'
Jul 19 10:31:37 mikael-HP-Compaq-8000-Elite-SFF-PC pptp[3625]: nm-pptp-service-3601 log[ctrlp_disp:pptp_ctrl.c:858]: Received Outgoing Call Reply.
Jul 19 10:31:37 mikael-HP-Compaq-8000-Elite-SFF-PC pptp[3625]: nm-pptp-service-3601 log[ctrlp_disp:pptp_ctrl.c:897]: Outgoing call established (call ID 0, peer's call ID 15232).
Jul 19 10:31:37 mikael-HP-Compaq-8000-Elite-SFF-PC pppd[3605]: CHAP authentication succeeded
Jul 19 10:31:37 mikael-HP-Compaq-8000-Elite-SFF-PC pppd[3605]: MPPE 128-bit stateless compression enabled
Jul 19 10:31:37 mikael-HP-Compaq-8000-Elite-SFF-PC pppd[3605]: local IP address 10.252.0.36
Jul 19 10:31:37 mikael-HP-Compaq-8000-Elite-SFF-PC pppd[3605]: remote IP address 10.252.0.1
Jul 19 10:31:37 mikael-HP-Compaq-8000-Elite-SFF-PC pppd[3605]: primary DNS address 213.80.98.2
Jul 19 10:31:37 mikael-HP-Compaq-8000-Elite-SFF-PC pppd[3605]: secondary DNS address 213.80.101.3
Jul 19 10:31:37 mikael-HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: <info> VPN connection 'Integrity' (IP4 Config Get) reply received from old-style plugin.
Jul 19 10:31:37 mikael-HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: <info> VPN Gateway: 94.254.51.251
Jul 19 10:31:37 mikael-HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: <info> Tunnel Device: ppp0
Jul 19 10:31:37 mikael-HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: <info> IPv4 configuration:
Jul 19 10:31:37 mikael-HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: <info> Internal Address: 10.252.0.36
Jul 19 10:31:37 mikael-HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: <info> Internal Prefix: 32
Jul 19 10:31:37 mikael-HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: <info> Internal Point-to-Point Address: 10.252.0.1
Jul 19 10:31:37 mikael-HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: <info> Maximum Segment Size (MSS): 0
Jul 19 10:31:37 mikael-HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: <info> Forbid Default Route: no
Jul 19 10:31:37 mikael-HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: <info> Internal DNS: 213.80.98.2
Jul 19 10:31:37 mikael-HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: <info> Internal DNS: 213.80.101.3
Jul 19 10:31:37 mikael-HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: <info> DNS Domain: '(none)'
Jul 19 10:31:37 mikael-HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: <info> No IPv6 configuration
Jul 19 10:31:38 mikael-HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: <info> VPN connection 'Integrity' (IP Config Get) complete.
Jul 19 10:31:38 mikael-HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: <info> Policy set 'Integrity' (ppp0) as default for IPv4 routing and DNS.
Jul 19 10:31:38 mikael-HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: <info> Writing DNS information to /sbin/resolvconf
Jul 19 10:31:38 mikael-HP-Compaq-8000-Elite-SFF-PC dnsmasq[1172]: setting upstream servers from DBus
Jul 19 10:31:38 mikael-HP-Compaq-8000-Elite-SFF-PC dnsmasq[1172]: using nameserver 213.80.101.3#53
Jul 19 10:31:38 mikael-HP-Compaq-8000-Elite-SFF-PC dnsmasq[1172]: using nameserver 213.80.98.2#53
Jul 19 10:31:38 mikael-HP-Compaq-8000-Elite-SFF-PC pptp[3608]: nm-pptp-service-3601 warn[decaps_gre:pptp_gre.c:331]: short read (-1): Message too long
Jul 19 10:31:38 mikael-HP-Compaq-8000-Elite-SFF-PC pptp[3625]: nm-pptp-service-3601 log[callmgr_main:pptp_callmgr.c:234]: Closing connection (unhandled)
Jul 19 10:31:38 mikael-HP-Compaq-8000-Elite-SFF-PC pptp[3625]: nm-pptp-service-3601 log[ctrlp_rep:pptp_ctrl.c:251]: Sent control packet type is 12 'Call-Clear-Request'
Jul 19 10:31:38 mikael-HP-Compaq-8000-Elite-SFF-PC pptp[3625]: nm-pptp-service-3601 log[call_callback:pptp_callmgr.c:79]: Closing connection (call state)
Jul 19 10:31:38 mikael-HP-Compaq-8000-Elite-SFF-PC pppd[3605]: Modem hangup
Jul 19 10:31:38 mikael-HP-Compaq-8000-Elite-SFF-PC pppd[3605]: Connect time 0.1 minutes.
Jul 19 10:31:38 mikael-HP-Compaq-8000-Elite-SFF-PC pppd[3605]: Sent 5084 bytes, received 0 bytes.
Jul 19 10:31:38 mikael-HP-Compaq-8000-Elite-SFF-PC pppd[3605]: MPPE disabled
Jul 19 10:31:38 mikael-HP-Compaq-8000-Elite-SFF-PC pppd[3605]: Connection terminated.
Jul 19 10:31:38 mikael-HP-Compaq-8000-Elite-SFF-PC avahi-daemon[758]: Withdrawing workstation service for ppp0.
Jul 19 10:31:37 mikael-HP-Compaq-8000-Elite-SFF-PC whoopsie[1087]: message repeated 5 times: [ online]
Jul 19 10:31:38 mikael-HP-Compaq-8000-Elite-SFF-PC whoopsie[1087]: offline
Jul 19 10:31:38 mikael-HP-Compaq-8000-Elite-SFF-PC pppd[3605]: Terminating on signal 15
Jul 19 10:31:38 mikael-HP-Compaq-8000-Elite-SFF-PC pppd[3605]: Exit.
Jul 19 10:31:38 mikael-HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: <info> VPN plugin state changed: started (4)
Jul 19 10:31:38 mikael-HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: SCPlugin-Ifupdown: devices removed (path: /sys/devices/virtual/net/ppp0, iface: ppp0)
Jul 19 10:31:38 mikael-HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: <info> VPN plugin state changed: stopping (5)
Jul 19 10:31:38 mikael-HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: <info> VPN plugin state changed: stopped (6)
Jul 19 10:31:38 mikael-HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: <info> VPN plugin state change reason: 0
Jul 19 10:31:38 mikael-HP-Compaq-8000-Elite-SFF-PC avahi-daemon[758]: Withdrawing address record for 192.168.1.4 on eth0.
Jul 19 10:31:38 mikael-HP-Compaq-8000-Elite-SFF-PC avahi-daemon[758]: Leaving mDNS multicast group on interface eth0.IPv4 with address 192.168.1.4.
Jul 19 10:31:38 mikael-HP-Compaq-8000-Elite-SFF-PC dbus[648]: [system] Activating service name='org.freedesktop.nm_dispatcher' (using servicehelper)
Jul 19 10:31:38 mikael-HP-Compaq-8000-Elite-SFF-PC avahi-daemon[758]: Interface eth0.IPv4 no longer relevant for mDNS.
Jul 19 10:31:38 mikael-HP-Compaq-8000-Elite-SFF-PC avahi-daemon[758]: Joining mDNS multicast group on interface eth0.IPv4 with address 192.168.1.4.
Jul 19 10:31:38 mikael-HP-Compaq-8000-Elite-SFF-PC avahi-daemon[758]: New relevant interface eth0.IPv4 for mDNS.
Jul 19 10:31:38 mikael-HP-Compaq-8000-Elite-SFF-PC avahi-daemon[758]: Registering new address record for 192.168.1.4 on eth0.IPv4.
Jul 19 10:31:38 mikael-HP-Compaq-8000-Elite-SFF-PC dbus[648]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher'
Jul 19 10:31:38 mikael-HP-Compaq-8000-Elite-SFF-PC ntpdate[3692]: Can't find host ntp.ubuntu.com: Name or service not known (-2)
Jul 19 10:31:38 mikael-HP-Compaq-8000-Elite-SFF-PC ntpdate[3692]: no servers can be used, exiting
Jul 19 10:31:39 mikael-HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: <info> Policy set 'Wired connection 1' (eth0) as default for IPv4 routing and DNS.
Jul 19 10:31:39 mikael-HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: <info> Writing DNS information to /sbin/resolvconf
Jul 19 10:31:39 mikael-HP-Compaq-8000-Elite-SFF-PC dnsmasq[1172]: setting upstream servers from DBus
Jul 19 10:31:39 mikael-HP-Compaq-8000-Elite-SFF-PC dnsmasq[1172]: using nameserver 192.168.1.1#53
Jul 19 10:31:39 mikael-HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: <warn> error disconnecting VPN: Could not process the request because no VPN connection was active.
Jul 19 10:31:39 mikael-HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: <warn> (4) failed to find interface name for index
Jul 19 10:31:39 mikael-HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: nm_system_iface_flush_routes: assertion 'iface != NULL' failed
Jul 19 10:31:39 mikael-HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: <warn> (4) failed to find interface name for index
Jul 19 10:31:38 mikael-HP-Compaq-8000-Elite-SFF-PC whoopsie[1087]: message repeated 4 times: [ offline]
Jul 19 10:31:44 mikael-HP-Compaq-8000-Elite-SFF-PC whoopsie[1087]: online
Jul 19 10:31:45 mikael-HP-Compaq-8000-Elite-SFF-PC NetworkManager[939]: <info> VPN service 'pptp' disappeared

Nämnas bör att min vanliga uppkoppling fungerar hur bra som helst.

Någon idé?

Re: VPN-problem

Postat: 19 jul 2014, 17:03
av johanre
Hmmm, som du säger: uppkopplingen lyckas för att sedan avbrytas:

Kod: Markera allt

Jul 19 10:31:38 mikael-HP-Compaq-8000-Elite-SFF-PC pptp[3608]: nm-pptp-service-3601 warn[decaps_gre:pptp_gre.c:331]: short read (-1): Message too long
Jul 19 10:31:38 mikael-HP-Compaq-8000-Elite-SFF-PC pptp[3625]: nm-pptp-service-3601 log[callmgr_main:pptp_callmgr.c:234]: Closing connection (unhandled)
Jul 19 10:31:38 mikael-HP-Compaq-8000-Elite-SFF-PC pptp[3625]: nm-pptp-service-3601 log[ctrlp_rep:pptp_ctrl.c:251]: Sent control packet type is 12 'Call-Clear-Request'
Jul 19 10:31:38 mikael-HP-Compaq-8000-Elite-SFF-PC pptp[3625]: nm-pptp-service-3601 log[call_callback:pptp_callmgr.c:79]: Closing connection (call state)
Jul 19 10:31:38 mikael-HP-Compaq-8000-Elite-SFF-PC pppd[3605]: Modem hangup
Lite googlande ger:

https://bugs.launchpad.net/ubuntu/+sour ... bug/294564
http://ubuntuforums.org/showthread.php?t=1428224

Jag skulle börja med att testa förslaget om att sänka MTUn som det görs här:
http://ubuntuforums.org/showthread.php? ... ost9279383

Notera dock att den lösningen inte funkar för alla.

Re: VPN-problem

Postat: 19 jul 2014, 17:12
av ZhangJike88
Ok, hur och vart sänker jag MTU:n?

Gör man detta i VPN-anslutningen eller sin vanliga uppkoppling?

Testade på skoj bara att installera VPN-anslutningen på min Windows 8-laptop.
Där funkade det med en gång, inga problem alls. Har varit igång flera timmar nu.

Alltså ligger felet i Ubuntu; frågan är vart?

Re: VPN-problem

Postat: 20 jul 2014, 08:56
av johanre
Du sänker MTU:n på ditt vanliga nätverkskort, alltså innan VPN anslutning. T.ex. som föreslås i länken jag hänvisade till:
Fix: sudo ifconfig eth0 mtu xxxx

eth0 = your networking device

change the xxxx to your preferred MTU be it mtu 1200, mtu 900 etc..

Hope this helps someone else out there.
Alltså, i ditt fall, t.ex:

Kod: Markera allt

sudo ifconfig eth0 mtu 1400

Re: VPN-problem

Postat: 20 jul 2014, 10:41
av ZhangJike88
Händer inget när jag kör detta kommandot i terminalen. Får bara upp samma kommandoprompt igen, där man skall skriva in ett kommando.

Skriver in: "sudo ifconfig eth0 mtu 1400" efter kommandoprompten i terminalen.

Vad gör jag för fel?

Re: VPN-problem

Postat: 20 jul 2014, 11:00
av johanre
Du gör inget fel. :) Det bli bara inte mer spännande än så.
Testa med att koppla upp dig via VPN igen (har du stängt av datorn däremellan får du skriva om kommandot), gör det någon skillnad?

Re: VPN-problem

Postat: 20 jul 2014, 11:18
av ZhangJike88
Tyvärr ingen skillnad, dock verkar det dröja olika länge innan anslutningen slår ifrån. Första gången jag anslöt till min VPN, tog det bara ett par sekunder. Gången efter dröjde det ca 5 minuter.

Felet ligger också i Ubuntu, eftersom jag testat den i Window 8, och där var den igång hela dagen igår.

Någon idé om vad detta beror på?

Re: VPN-problem

Postat: 21 jul 2014, 00:38
av ubot
Någon idé om vad detta beror på?
Det här är ett riktigt höftskott: Fungerar det om du kör på TP-kabel istället för via WIFI? Jag försöker ringa in var någonstans felet är.

Re: VPN-problem

Postat: 22 jul 2014, 11:10
av johanre
ubot skrev:Det här är ett riktigt höftskott: Fungerar det om du kör på TP-kabel istället för via WIFI? Jag försöker ringa in var någonstans felet är.
Ha, ha, nog så god poäng, kör du trådlöst så lär inte kommandot med MTU hjälpa såvida du inte anger det trådlösa nätverkskortet (t.ex. wlan0) :)