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Old 02-09-2013, 03:45 PM   #1
poda19
LQ Newbie
 
Registered: Feb 2013
Posts: 1

Rep: Reputation: Disabled
Unhappy Cannot disconnect NetworkManager vpn


***IMPORTANT EDIT: sorry for the post title, i was completely wrong. I AM NOT CONNECTED TO THE VPN AT ALL.
Hi, i'm new to linux and i have installed network-manager-kde and network-manager-pptp. I created two connections, a wired connection and a vpn connection. Neither did work at first but i uninstalled Wicd network manager and cleared interfaces file and then the wired connection started working. But my vpn connection still does'nt work.
ifconfig:
Code:
eth0      Link encap:Ethernet  HWaddr 00:18:f3:f4:1c:e0  
          inet addr:192.168.1.3  Bcast:192.168.1.255  Mask:255.255.255.0
          inet6 addr: fe80::218:f3ff:fef4:1ce0/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:9410 errors:0 dropped:0 overruns:0 frame:0
          TX packets:10251 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:6600342 (6.6 MB)  TX bytes:1436789 (1.4 MB)
          Interrupt:43 

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:301 errors:0 dropped:0 overruns:0 frame:0
          TX packets:301 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:20993 (20.9 KB)  TX bytes:20993 (20.9 KB)
logs after connecting:
Code:
Feb  9 23:53:42 bt NetworkManager: <info>  Starting VPN service 'org.freedesktop.NetworkManager.pptp'...
Feb  9 23:53:42 bt NetworkManager: <info>  VPN service 'org.freedesktop.NetworkManager.pptp' started (org.freedesktop.NetworkManager.pptp), PID 2163
Feb  9 23:53:42 bt NetworkManager: <info>  VPN service 'org.freedesktop.NetworkManager.pptp' just appeared, activating connections
Feb  9 23:53:42 bt NetworkManager: <info>  VPN plugin state changed: 3
Feb  9 23:53:42 bt NetworkManager: <info>  VPN connection 'VPNMakers' (Connect) reply received.
Feb  9 23:53:42 bt NetworkManager:    SCPlugin-Ifupdown: devices added (path: /sys/devices/virtual/net/ppp0, iface: ppp0)
Feb  9 23:53:42 bt NetworkManager:    SCPlugin-Ifupdown: device added (path: /sys/devices/virtual/net/ppp0, iface: ppp0): no ifupdown configuration found.
Feb  9 23:53:43 bt pptp[2166]: nm-pptp-service-2163 log[main:pptp.c:314]: The synchronous pptp option is NOT activated
Feb  9 23:53:44 bt pptp[2175]: nm-pptp-service-2163 log[ctrlp_rep:pptp_ctrl.c:251]: Sent control packet type is 1 'Start-Control-Connection-Request'
Feb  9 23:53:44 bt pptp[2175]: nm-pptp-service-2163 log[ctrlp_disp:pptp_ctrl.c:739]: Received Start Control Connection Reply
Feb  9 23:53:44 bt pptp[2175]: nm-pptp-service-2163 log[ctrlp_disp:pptp_ctrl.c:773]: Client connection established.
Feb  9 23:53:45 bt pptp[2175]: nm-pptp-service-2163 log[ctrlp_rep:pptp_ctrl.c:251]: Sent control packet type is 7 'Outgoing-Call-Request'
Feb  9 23:53:45 bt pptp[2175]: nm-pptp-service-2163 log[ctrlp_disp:pptp_ctrl.c:858]: Received Outgoing Call Reply.
Feb  9 23:53:45 bt pptp[2175]: nm-pptp-service-2163 log[ctrlp_disp:pptp_ctrl.c:897]: Outgoing call established (call ID 0, peer's call ID 3890).
Feb  9 23:53:47 bt pptp[2175]: nm-pptp-service-2163 log[ctrlp_disp:pptp_ctrl.c:950]: PPTP_SET_LINK_INFO received from peer_callid 60990
Feb  9 23:53:47 bt pptp[2175]: nm-pptp-service-2163 log[ctrlp_disp:pptp_ctrl.c:953]:   send_accm is 00000000, recv_accm is FFFFFFFF
Feb  9 23:53:47 bt pptp[2175]: nm-pptp-service-2163 warn[ctrlp_disp:pptp_ctrl.c:956]: Non-zero Async Control Character Maps are not supported!
Feb  9 23:53:47 bt pptp[2175]: nm-pptp-service-2163 log[ctrlp_disp:pptp_ctrl.c:950]: PPTP_SET_LINK_INFO received from peer_callid 60990
Feb  9 23:53:47 bt pptp[2175]: nm-pptp-service-2163 log[ctrlp_disp:pptp_ctrl.c:953]:   send_accm is FFFFFFFF, recv_accm is FFFFFFFF
Feb  9 23:53:47 bt pptp[2175]: nm-pptp-service-2163 warn[ctrlp_disp:pptp_ctrl.c:956]: Non-zero Async Control Character Maps are not supported!
Feb  9 23:53:47 bt pptp[2175]: nm-pptp-service-2163 log[ctrlp_disp:pptp_ctrl.c:912]: Received Call Clear Request.
Feb  9 23:53:50 bt NetworkManager:    SCPlugin-Ifupdown: devices removed (path: /sys/devices/virtual/net/ppp0, iface: ppp0)
Feb  9 23:53:50 bt NetworkManager: <info>  VPN plugin failed: 1
Feb  9 23:53:50 bt pptp[2166]: nm-pptp-service-2163 warn[decaps_hdlc:pptp_gre.c:204]: short read (-1): Input/output error
Feb  9 23:53:50 bt pptp[2166]: nm-pptp-service-2163 warn[decaps_hdlc:pptp_gre.c:216]: pppd may have shutdown, see pppd log
Feb  9 23:53:50 bt pptp[2175]: nm-pptp-service-2163 log[callmgr_main:pptp_callmgr.c:234]: Closing connection (unhandled)
Feb  9 23:53:50 bt pptp[2175]: nm-pptp-service-2163 log[ctrlp_rep:pptp_ctrl.c:251]: Sent control packet type is 12 'Call-Clear-Request'
Feb  9 23:53:50 bt pptp[2175]: nm-pptp-service-2163 log[call_callback:pptp_callmgr.c:79]: Closing connection (call state)
Feb  9 23:53:50 bt NetworkManager: <info>  VPN plugin failed: 1
Feb  9 23:53:50 bt NetworkManager: <info>  VPN plugin failed: 1
Feb  9 23:53:50 bt NetworkManager: <info>  VPN plugin state changed: 6
Feb  9 23:53:50 bt NetworkManager: <info>  VPN plugin state change reason: 0
Feb  9 23:53:50 bt NetworkManager: <WARN>  connection_state_changed(): Could not process the request because no VPN connection was active.
Feb  9 23:53:50 bt NetworkManager: <info>  Policy set 'shit' (eth0) as default for routing and DNS.
Feb  9 23:54:03 bt NetworkManager: <debug> [1360441443.002638] ensure_killed(): waiting for vpn service pid 2163 to exit
Feb  9 23:54:03 bt NetworkManager: <debug> [1360441443.002776] ensure_killed(): vpn service pid 2163 cleaned up
I am using backtrack5 R3 KDE - i asked it in askubuntu.com first, they said ask it in backtrack forums. I posted my question there but it seems they delete it. so i asked here.

Last edited by poda19; 02-09-2013 at 04:17 PM. Reason: insufficient information
 
Old 02-12-2013, 01:26 PM   #2
foodown
Member
 
Registered: Jun 2009
Location: Texas
Distribution: Slackware
Posts: 611

Rep: Reputation: 220Reputation: 220Reputation: 220
I think that this might be related to the MTU setting of 1500 on the ethernet interface there.

Try setting the MTU manually to confirm this:
Code:
sudo ifconfig eth0 MTU 800
After executing that line, attempt to connect with NetworkManager.

If that's it, and you'll tell me what distribution this is, I can help you make that setting take effect at boot time.
 
  


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