r0 = socket$inet6_udp(0xa, 0x2, 0x0)
connect$inet6(r0, &(0x7f0000000600)={0xa, 0x0, 0x0, @dev, 0x1}, 0x1c)
connect$inet6(r0, &(0x7f00000000c0)={0xa, 0x4e20, 0x0, @ipv4={'\x00', '\xff\xff', @multicast1}}, 0x1c)
sendmmsg$inet6(r0, &(0x7f0000004240)=[{{0x0, 0x0, 0x0}}, {{&(0x7f0000000400)={0xa, 0x4e22, 0x0, @initdev={0xfe, 0x88, '\x00', 0x0, 0x0}}, 0x1c, 0x0, 0x0, &(0x7f0000001b40)=[@hopopts={{0x18}}, @hopopts={{0x18}}], 0x30}}], 0x2, 0x0)