Windscribe is leaking IPv6 when running in inclusive split tunneling mode

[amirrh6]

Describe the bug
While IPv4 is tunneled through Windscribe, IPv6 is leaked.

OS and app information:

• OS: Ubuntu (GNOME) 24.04
• App version 2.12.7

To Reproduce
Steps to reproduce the behavior:
0. Make sure your internet connection is providing both IPv4 and IPv6

1. Go to Settings > Connection > Split Tunneling
2. Set Mode to 'Inclusive'
3. Try adding an app like a browser, say Chromium
4. Check your IP with https://whatismyipaddress.com/
5. Try clicking on your IPv4 and IPv6 for more details.

Expected behavior
Both IPv4 and IPv6 should be tunneled through Windscribe while currently only IPv4 is tunneled.

[bernerdad]

Hi. Please give our recent beta release a try and let us know if the issue still exists for you. We've improved IPv6 behavior in the 2.13 release. However, please note that IPv6 will be blocked. We do not yet support IPv6 over the tunnel. Thanks!

[amirrh6]

@bernerdad
I tested different scenarios with v2.13.5 and here is the results:

Inclusive mode is not working at all (no application is tunneled) so every application (even those which were supposed to be tunneled) are leaking IPv4 and IPv6.
Exclusive is not working too (excluded applications are still tunneled), however IPv6 is blocked for every application.

I understand how difficult it can be to implement split tunneling on Linux; I'm available to help with testing.

[bernerdad]

Thank you for the testing update. All the engineers are away now for Christmas break. We'll revisit this in early January. Cheers!

[jaxu]

In the meantime, please ensure you are not trying to split tunnel a symlink or a launcher app. This often happens with e.g. firefox, where the .desktop file points to a launcher script that runs the actual binary. If this is the case, you'll need to use the + icon to add the correct binary manually.