r0 = socket$inet6_udp(0xa, 0x2, 0x0)
connect$inet6(r0, &(0x7f0000000080)={0xa, 0x20, 0x0, @ipv4={'\x00', '\xff\xff', @dev}}, 0x1c)
sendmmsg$inet6(r0, &(0x7f0000005c40)=[{{0x0, 0x0, 0x0}}], 0x1, 0x8040)
sendmmsg$inet6(r0, &(0x7f0000009140)=[{{0x0, 0x0, 0x0}}, {{0x0, 0x0, 0x0}}], 0x2, 0x0)