Apologies for a non answer, but any app (at least with Apple) is required to support IPv6 only networks.
https://developer.apple.com/support/ipv6/ Rather than work on a 6 to 4 fix, why not put some energy into supporting IPv6? **Regards, Troy** Brevity is the elixir of life. Father Hector McGrath, Pixie 2020 \-------- Original Message -------- On 4 Jan 2022, 9:03 pm, Matthew H < [email protected]> wrote: > > > > Hi, > > > > We are developing a WebRTC mobile app that sets up a media session via Web > Socket and then sends the media via RTP over UDP. It's working on most > networks but we've had users report issues with the app when their iPhone is > connected to the Telstra Mobile network. > > > > Unfortunately our network only supports IPv4, and after examining the > available logs it appears their iPhone only gets an IPv6 address. The Web > Socket communication is able to reach us so I assume a NAT64 gateway is in > use, but we don't see any RTP / UDP arrive at our network edge. > > > > > We found a couple of posts that suggest users have had similar issues with > UDP being dropped: > > https://crowdsupport.telstra.com.au/t5/network-roaming/unable-to-stream-video-over-udp-on-ipv6-only-connection/td-p/933472 > https://crowdsupport.telstra.com.au/t5/network-roaming/ios-and-ipv6/td-p/931449 > > https://crowdsupport.telstra.com.au/t5/apple-ios/nordvpn-won-t-connect-on-4g-ios/td-p/932511 > > > > > Is anyone aware of Telstra's NAT64 gateway dropping UDP? > > > > Thanks > > Matthew >
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