r0 = socket$inet6_udp(0xa, 0x2, 0x0)
sendmmsg$inet6(r0, &(0x7f0000001ec0)=[{{&(0x7f0000000040)={0xa, 0x4e24, 0x0, @ipv4={'\x00', '\xff\xff', @local}}, 0x1c, 0x0}}, {{&(0x7f00000005c0)={0xa, 0x4e24, 0x0, @ipv4={'\x00', '\xff\xff', @dev}}, 0x1c, 0x0, 0x0, &(0x7f00000006c0)=[@pktinfo={{0x24, 0x29, 0x32, {@mcast2}}}], 0x28}}], 0x2, 0x0)