We’re currently working on a VR game that uses smart phones to interact with players not in VR. The game is played via LAN and we use the NULL subsystem to find active sessions. This works fine on Android phones but not iOS because of the IPv6 sockets the iOS is using. The test network we’re running this on does not have IPv6 support but iOS only tries to broadcast using the IPv6 multicast address (ff02::1). I’m looking into falling back to IPv4 but wondering if anyone knows of a proper solution.