bugKVpnc - Bugs: bug #13351, Route is lost when KVPNC is started

Show feedback again

You are not allowed to post comments on this tracker with your current authentification level.

bug #13351: Route is lost when KVPNC is started

Submitted by:  Olaf Lenz <olenz>
Submitted on:  Wed Apr 8 07:10:44 2009  
Category: NoneSeverity: 3 - Normal
Priority: 5 - NormalStatus: None
Privacy: PublicAssigned to: None
Open/Closed: Open

Wed Oct 20 16:08:10 2010, comment #5:

I also confirm this bug in 0.9.6, under ubuntu 10.04 kernel 2.6.32-25 64-bit.

Oddly, the default route disappears when kvpnc starts, before I try to connect to the VPN. Reconnecting to the wireless connection fixes the route, and then I can connect. Also odd, I have this problem on one wireless network, but not another.

The bug is reliably reproducible (on the one network) by cold-booting the machine and then starting kvpnc. It loses the default route the moment kvpnc starts running. If I connect to the vpn, then disconnect and quit kvpnc, then restart kvpnc, the default route disappears again. Disconnecting the wireless connection then reconnecting fixes the route, then kvpnc can start the vpn connection.

Michael Krebs <earthman>
Sat Aug 14 22:05:23 2010, comment #4:

I can confirm this bug on version 0.9.6

Yevgeny <phaoost>
Thu Apr 16 07:01:51 2009, comment #3:

Ok, so maybe it is not a void bug, after all. Today, it turned up again.

This is the output of "route" before starting kvpnc:

> route

Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface * U 2 0 0 wlan0
link-local * U 1000 0 0 wlan0
default rpoly.mpip-main UG 0 0 0 wlan0

And this is how it looks afterwards:

> route

Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface * U 2 0 0 wlan0
link-local * U 1000 0 0 wlan0

So it seems to have lost its default route.

Note, that this only happens when I start kvpnc and the network is already connected. When kvpnc is running and I connect the network, then everything works fine.
So it seems to be happening during the actual setup of kvpnc (maybe the "preserving network environment" step seen in the log?).

Olaf Lenz <olenz>
Tue Apr 14 09:00:12 2009, comment #2:

Since I have filed the report last week, I am unable to reproduce the problem, so I consider it solved. Don't ask me what happened.

The bug can be closed, I guess.

Olaf Lenz <olenz>
Wed Apr 8 07:49:58 2009, comment #1:

The worst thing is, that now, after filing this report, I seem to be completely unable to reproduce the behaviour that has bugged me for months.
I wanted to give you more details, but at the moment, I'm unable to.

Olaf Lenz <olenz>
Wed Apr 8 07:10:44 2009, original submission:

I'm using a recent SVN version of Kvpnc on Kubuntu Jaunty (9.04beta), but I have seen this behaviour already in earlier versions of the OS and of Kvpnc.

Often, when I start Kvpnc, the network connection (i.e. the route) is lost. To be able to use the network, I have to reconnect. Afterwards, everything (including kvpnc) works fine.

The problem is independent of whether I use a wlan or ethernet connection.

The behaviour is not 100% reproducible - usually, when I open kvpnc for the first time in a session, the route is lost and I have to reconnect. However, when I try to reproduce the behaviour by shutting down kvpnc and starting it again, the route is lost only occasionally. And if it is not lost, I can repeat shutting down and restarting kvpnc without any problem.

Olaf Lenz <olenz>


No files currently attached


Depends on the following items: None found

Items that depend on this one: None found


Carbon-Copy List
  • -unavailable- added by earthman (Posted a comment)
  • -unavailable- added by phaoost (Posted a comment)
  • -unavailable- added by olenz (Submitted the item)

    Do you think this task is very important?
    If so, you can click here to add your encouragement to it.
    This task has 0 encouragements so far.

    Only logged-in users can vote.


    Error: not logged in



    No Changes Have Been Made to This Item
    Show feedback again

    Back to the top

    Powered by Savane 3.1-cleanup