Linux Server - IPv6 support

Hello everyone,

In our game we’d like to have an ability to connect to the dedicated server using IPv6 connection.
Can anyone confirm that current UE4 version enables IPv6 on Linux (the platform our dedicated server runs on) please?
My quick research shows that the only platform that has PLATFORM_HAS_BSD_IPV6_SOCKETS set to 1 by default is IOS, is there a reason for that?