r0 = socket$inet6_udp(0xa, 0x2, 0x0)
setsockopt$inet6_udp_int(r0, 0x11, 0x67, &(0x7f00000000c0)=0x1, 0x4)
sendto$inet6(r0, 0x0, 0x0, 0x0, &(0x7f0000000340)={0xa, 0x4e21, 0x0, @loopback={0xffffffff00000000}}, 0x1c)