VPN issue

[shuvashish76]

https://github.com/slowscript/warpinator-android/blob/master/connection-issues.md

Do not use a VPN (unless you know what you are doing).

Sorry, I use RethinkDNS app which isn't a real vpn, it uses android's VPN to block ads with hostlists & also to firewall (block internet access of) apps.

These days this is the best solution for non-rooted devices to block ads from all apps. There are many similar opensource apps available e.g. Blokada, InviZible Pro, NetGuard, pdnsf, TrackerControl etc...

All these Firewall rules are added to Gufw Firewall.

When I tried to connect from Android device it gives me this error (when VPN on)

But if I disabe VPN & try to connect then it works & it doesn't stop if I turn on VPN again while both devices are connected.

I know it's a minor thing I could disable VPN service > transfer files > then turn on VPN again but this isn't an solution to the problem & would be somewhat annoying.

Any help/hack for this would be appreciated.
Thanks.

[slowscript]

I've installed RethinkDNS as well and can confirm connection not working (although in other ways than you have shown). When I analyzed the traffic with Wireshark (although only briefly), I saw everything I needed, so I'm not sure what the problem is. There however is a solution that worked for me, which was to add Warpinator to Excluded apps list (different than whitelist).

[ignoramous]

rdns dev here

Rethink doesn't really play nice with LAN or Link Local connections. At least we don't test them yet, but we should.

One option is to expose a setting that lets users exclude local and link-local connections from Rethink: celzero/rethink-app#26 (comment) (this won't work if Block connections without VPN, aka Android 9+ VPN Lockdown mode, is enabled).

Another option is to test LAN-only apps (like warpinator) and see what changes are needed to make the underlying network engine play ball.

[shuvashish76]

Thanks, @slowscript please convert this issue to discussion useful for other users who facing anytype of VPN issue or possible solution discussion.