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.


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