r0 = socket$inet6_udp(0xa, 0x2, 0x0)
setsockopt$inet6_mreq(r0, 0x29, 0x4e, &(0x7f0000000000)={@mcast2}, 0x14)
bind$inet6(r0, &(0x7f0000000100)={0xa, 0x0, 0x0, @ipv4={'\x00', '\xff\xff', @local}}, 0x1c)