r0 = socket$inet6_udp(0xa, 0x2, 0x0)
sendmsg$inet6(r0, &(0x7f00000006c0)={&(0x7f0000000040)={0x2, 0x4e22, 0x0, @mcast2}, 0x1c, 0x0, 0x0, &(0x7f0000000400)=[@pktinfo={{0x24, 0x29, 0x32, {@ipv4={'\x00', '\xff\xff', @private}}}}], 0x28}, 0x0)