r0 = socket$inet6_udp(0xa, 0x2, 0x0)
r1 = socket$inet6_udp(0xa, 0x2, 0x0)
connect$inet6(r1, &(0x7f0000000040)={0xa, 0x0, 0x0, @mcast2, 0x3}, 0x1c)
connect$inet6(r1, &(0x7f0000000000)={0xa, 0x0, 0x0, @ipv4={'\x00', '\xff\xff', @empty}}, 0x1c)
dup2(r1, r0)
connect$inet6(r0, &(0x7f0000000040)={0xa, 0x0, 0x0, @mcast2}, 0x1c)