IPv6 disabled but OpenVPN client on Android still trying to use it?
I am having a strange issue when trying to connect to my OpenVPN tunnel from an Android device. The tunnel connects fine but seems to default to IPv6 no matter what I do. As a result, I am not able to access anything from the Android device. I have disabled IPv6 in the tunnel settings, the LAN and WAN settings. As far as I can tell, pfsense is blocking IPv6 traffic. Yet, on the OpenVPN client on the phone, it still says connected via UDPv6. Any idea?
Problem solved. It was issue with IPv6 leakage on T-Mobile network.
What did you do to fix this? Whenever I've run into this, I've had to set my APN to IPv4.