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Could you clarify your maximum packets math? You may have left out a word or two.

Maximum packet maths came from the wikipedia entry. http://en.wikipedia.org/wiki/Port_knocking . First two paragraphs under the "Benefits" section.

I see.

You wrote:

"That equates to a maximum of 655363 packets in order to obtain and detect a single successful opening."

They wrote:

"That equates to a maximum of 65536 ^ 3 packets in order to obtain and detect a single successful opening."