\x20\40\x20\40
1290 (p0f) S 1 1290 1290 0 -1 4194368 132 0 2 0 455 2694 0 0 20 0 1 0 921 23871488 985 18446744073709551615 1 1 0 0 0 0 0 4097 16386 0 0 0 17 1 0 0 0 0 0 0 0 0 0 0 0 0 0