Hello,

I have a question about IPv4 mapped address support on QNX 6.6 x86.

I get the error EINVAL when setting the socket option IP_ADD_MEMBERSHIP on an IPv4 mapped
address.

This should not be the case, since the kernel should recognize the special form of IPv4 mapped 
address ::ffff:x.y.z.w and use an IPv4 socket.

I have checked that the sysctl option net.inet6.ip6.v6only is set to 0.

Anyone has a hint? Is it somewhere documented that QNX does not support these addresses?

Note: On QNX 7 x86_64, it works

Thank you in advance!

Best regards,
Imane