This module matches every `n'th packet

--every value
    Match every `value' packet

[--counter num]
    Use internal counter number `num'. Default is `0'.

[--start num]
    Initialize the counter at the number `num' insetad of `0'. Most between `0' and `value'-1.

[--packet num]
    Match on `num' packet. Most be between `0' and `value'-1.