r0 = socket$inet6_udp(0xa, 0x2, 0x0)
connect$inet6(r0, &(0x7f0000000600)={0xa, 0x0, 0x0, @dev, 0x3}, 0x1c)
setsockopt$sock_int(r0, 0x1, 0xb, &(0x7f00000002c0)=0x8, 0x4)
connect$inet6(r0, &(0x7f0000000000)={0xa, 0x4e23, 0x0, @ipv4={'\x00', '\xff\xff', @multicast2}, 0x3f}, 0x1c)
sendmmsg$inet6(r0, &(0x7f0000004d00)=[{{0x0, 0x1100, &(0x7f00000004c0)=[{&(0x7f0000000080)='K', 0x1}], 0x1}}], 0x7ffff000, 0x0)