ANSWERED Nintendo Switch NAT problem

[darksent21 0]

Hello,

Can someone guide me how to set up the VPN to bypass my ISP CGNAT?

So my current set up is I installed airvpn using my android phone.
Then I will link my nintendo switch to my phone via hotspot.

Thank you!

[Staff 9968]

@darksent21

Hello!

Your idea is totally correct but unfortunately Android forbids (for unfathomably alleged security reasons or waffling technical oversight) the phone to work as a hot spot in tethering mode when in a VPN. So you can't share the VPN traffic with an un-rooted Android device working as a hot spot. Technically, it's because Android VPN tethering system app fails to set the proper packet pre-routing and forward rules for a virtual network interface. However, if you have a rooted device you can fix the problem by adding the missing mangling rules with iptables. Please see here:
https://android.stackexchange.com/questions/60819/can-i-share-my-androids-vpn-connection-over-a-hotspot

Kind regards

 

[OpenSourcerer 1435]

In addition to that, some custom ROMs like LineageOS offer this option in the network settings still.