I just followed the steps from Forging WiFi Beacon, but my output is strange, it added 'c2' byte between '0f' and 'ac' byte, Why this happened? How do I solve this problem?
It seems that you're on Python 3 (as IPython > 5 requires Python > 3)
In that case, you should remember to append a b
in front of bytes strings: b"\x01\x02..."
as it is required on Python 3+