Same issue on 12.10 !
** Changed in: network-manager-pptp (Ubuntu)
Status: Expired => Confirmed
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https://bugs.launchpad.net/bugs/297140
Title:
VPN connection unstable
Status in “network-manager-pptp” package in Ubuntu:
Confirmed
Bug description:
Binary package hint: network-manager-pptp
I'm using the network manager with pptp to connect to a vpn network
(and get a connection to the internet by vpn - so it's really important to
me).
After upgrading to Intrepid the network manager wasn't able to
establish a vpn connection any more (keyword "vpn secret").
Checking for a vpn bug I found a solution using two updated packages:
network-manager_0.7~~svn20081018t105859-0ubuntu2~nm4_i386
network-manager-pptp_0.7~~svn20081015t024626-0ubuntu2~nm3_i386
After installing the vpn works but quite unstablely,
namely the connection terminates after a while.
To make things worse reconnecting wasn't always immediately possible
(sometimes I had to try several times).
So I had a closer look.
According to the "messages" in the Gnome SystemLogViewer,
the connection time was always between 48.0 and 59.0 minutes (9 successful
connection so far).
Approximately two minutes before the vpn connection is lost,
the Gnome System Monitor shows a process called "pptpgw" which produces more
then
50% processor load for about 2 minutes, then "pptpgw" disappears and the
connection collapses
When pptpgw starts going berserk:
daemon.log:
10:05:38 dhclient: DHCPREQUEST of 10.0.234.255 on eth0 to xxx.dns-server.2
port 67
10:05:38 dhclient: DHCPACK of 10.0.234.255 from xxx.dns-server.2
10:05:38 NetworkManager: <info> DHCP: device eth0 state changed bound ->
renew
10:05:38 NetworkManager: <info> address 10.0.234.255
10:05:38 NetworkManager: <info> prefix 16 (255.255.0.0)
10:05:38 NetworkManager: <info> gateway 10.0.0.2
10:05:38 NetworkManager: <info> nameserver 'xxx.dns-server.247'
10:05:38 NetworkManager: <info> domain name 'xxxdomain'
10:05:38 avahi-daemon[5126]: Withdrawing address record for 10.0.234.255 on
eth0.
10:05:38 avahi-daemon[5126]: Leaving mDNS multicast group on interface
eth0.IPv4 with address 10.0.234.255.
10:05:38 avahi-daemon[5126]: Interface eth0.IPv4 no longer relevant for mDNS.
10:05:38 avahi-daemon[5126]: Joining mDNS multicast group on interface
eth0.IPv4 with address 10.0.234.255.
10:05:38 avahi-daemon[5126]: New relevant interface eth0.IPv4 for mDNS.
10:05:38 avahi-daemon[5126]: Registering new address record for 10.0.234.255
on eth0.IPv4.
10:05:38 dhclient: bound to 10.0.234.255 -- renewal in 3009 seconds.
10:05:39 NetworkManager: <info> Policy set 'xxxNameOfConnection' (ppp0) as
default for routing and DNS.
When pptpgw disappears and connection collapses:
daemon.log:
10:07:25 pptp[6115]: nm-pptp-service-6091
log[pptp_handle_timer:pptp_ctrl.c:1050]: closing control connection due to
missing echo reply
10:07:25 pptp[6115]: nm-pptp-service-6091 log[ctrlp_rep:pptp_ctrl.c:251]:
Sent control packet type is 12 'Call-Clear-Request'
10:07:25 pptp[6115]: nm-pptp-service-6091
log[pptp_conn_close:pptp_ctrl.c:430]: Closing PPTP connection
10:07:25 pptp[6115]: nm-pptp-service-6091 log[ctrlp_rep:pptp_ctrl.c:251]:
Sent control packet type is 3 'Stop-Control-Connection-Request'
10:07:25 pptp[6115]: nm-pptp-service-6091
log[call_callback:pptp_callmgr.c:79]: Closing connection (call state)
10:07:25 NetworkManager: <info> VPN plugin failed: 1
10:07:25 NetworkManager: <info> VPN plugin state changed: 6
10:07:25 NetworkManager: <info> VPN plugin state change reason: 0
10:07:25 NetworkManager: <WARN> connection_state_changed(): Could not
process the request because no VPN connection was active.
10:07:25 NetworkManager: nm_system_device_flush_ip4_routes_with_iface:
assertion `iface_idx >= 0' failed
10:07:25 NetworkManager: nm_system_device_flush_ip4_addresses_with_iface:
assertion `iface_idx >= 0' failed
10:07:25 avahi-daemon[5126]: Withdrawing address record for 10.0.234.255 on
eth0.
10:07:25 avahi-daemon[5126]: Leaving mDNS multicast group on interface
eth0.IPv4 with address 10.0.234.255.
10:07:25 avahi-daemon[5126]: Interface eth0.IPv4 no longer relevant for mDNS.
10:07:25 avahi-daemon[5126]: Joining mDNS multicast group on interface
eth0.IPv4 with address 10.0.234.255.
10:07:25 avahi-daemon[5126]: New relevant interface eth0.IPv4 for mDNS.
10:07:25 avahi-daemon[5126]: Registering new address record for 10.0.234.255
on eth0.IPv4.
10:07:26 NetworkManager: <info> Policy set 'Auto eth0' (eth0) as default for
routing and DNS.
10:07:26 NetworkManager: <info> Policy set 'Auto eth0' (eth0) as default for
routing and DNS.
10:07:26 nm-dispatcher.action: Script
'/etc/NetworkManager/dispatcher.d/01ifupdown' exited with error status 1.
10:07:38 NetworkManager: <debug> [1226480858.753039] ensure_killed(): waiting
for vpn service pid 6091 to exit
10:07:38 NetworkManager: <debug> [1226480858.753580] ensure_killed(): vpn
service pid 6091 cleaned up
10:08:03 ntpd[6059]: sendto(130.133.1.10) (fd=19): Invalid argument
debug:
10:07:38 NetworkManager: <debug> [1226480858.753039] ensure_killed(): waiting
for vpn service pid 6091 to exit
10:07:38 NetworkManager: <debug> [1226480858.753580] ensure_killed(): vpn
service pid 6091 cleaned up
messages:
10:07:25 pppd[6095]: Modem hangup
10:07:25 pppd[6095]: Connect time 55.0 minutes.
10:07:25 pppd[6095]: Sent 847137140 bytes, received 31024139 bytes.
10:07:25 pppd[6095]: Connection terminated.
10:07:25 pppd[6095]: Exit.
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