No Internet connectivity on NAT client when PPTP VPN connection is active

[Daniel Burton]

Binary package hint: guidedog

I am using Guidedog for Internet connection sharing on my Ubuntu 9.04 desktop system, and I am losing all Internet connectivity on my Windows XP client virtual machine as long as a PPTP VPN connection is active on Ubuntu machine. The Windows XP virtual machine is running under VirtualBox 3.0.2. It is connected to the host machine using host-only networking.

I also have a Guarddog firewall configured. I provide the virtual machine with DNS, using dnsmasq. Everything works flawlessly up until the point when I establish my VPN connection. After that I cannot ping Internet hosts or establish TCP connections to them from the Windows XP virtual machine. DNS still works, because it is running on the host system, and connections between the host system and virtual machine are unaffected.

I have tested this with my Guarddog firewall disabled as well. The behavior is exactly the same - I have Internet connectivity up until the point when I establish the VPN connection, and then I lose it. After I disconnect the VPN, I regain Internet connectivity on the client system.

Guidedog does seem to be reconfiguring the iptables rules when the VPN connection is established or disabled. After the connection is established a rule for the interface ppp0, which was not previously present appears. When the connection is disabled, this rule disappears again.

ProblemType: Bug
Architecture: i386
DistroRelease: Ubuntu 9.04
Package: guidedog 1.0.0-5ubuntu1
ProcEnviron:
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: guidedog
Uname: Linux 2.6.28-13-generic i686

[Gianfranco Costamagna (costamagnagianfranco)]

Can you please try again with the latest guidedog from vivid?

[Daniel Burton (lordofthebrambles)]

I no longer have the Ubuntu machine.

On Tue, Feb 10, 2015 at 1:09 AM, LocutusOfBorg <
<email address hidden>> wrote:

> Can you please try again with the latest guidedog from vivid?
>
> ** Changed in: guidedog (Ubuntu)
> Status: New => Incomplete
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/401565
>
> Title:
> No Internet connectivity on NAT client when PPTP VPN connection is
> active
>
> Status in guidedog package in Ubuntu:
> Incomplete
>
> Bug description:
> Binary package hint: guidedog
>
> I am using Guidedog for Internet connection sharing on my Ubuntu 9.04
> desktop system, and I am losing all Internet connectivity on my
> Windows XP client virtual machine as long as a PPTP VPN connection is
> active on Ubuntu machine. The Windows XP virtual machine is running
> under VirtualBox 3.0.2. It is connected to the host machine using
> host-only networking.
>
> I also have a Guarddog firewall configured. I provide the virtual
> machine with DNS, using dnsmasq. Everything works flawlessly up until
> the point when I establish my VPN connection. After that I cannot
> ping Internet hosts or establish TCP connections to them from the
> Windows XP virtual machine. DNS still works, because it is running on
> the host system, and connections between the host system and virtual
> machine are unaffected.
>
> I have tested this with my Guarddog firewall disabled as well. The
> behavior is exactly the same - I have Internet connectivity up until
> the point when I establish the VPN connection, and then I lose it.
> After I disconnect the VPN, I regain Internet connectivity on the
> client system.
>
> Guidedog does seem to be reconfiguring the iptables rules when the VPN
> connection is established or disabled. After the connection is
> established a rule for the interface ppp0, which was not previously
> present appears. When the connection is disabled, this rule
> disappears again.
>
> ProblemType: Bug
> Architecture: i386
> DistroRelease: Ubuntu 9.04
> Package: guidedog 1.0.0-5ubuntu1
> ProcEnviron:
> LANG=en_US.UTF-8
> SHELL=/bin/bash
> SourcePackage: guidedog
> Uname: Linux 2.6.28-13-generic i686
>
> To manage notifications about this bug go to:
>
> https://bugs.launchpad.net/ubuntu/+source/guidedog/+bug/401565/+subscriptions
>

[Launchpad Janitor (janitor)]

[Expired for guidedog (Ubuntu) because there has been no activity for 60 days.]