Yes Frag_off is used by the fragment offset field. But it does not control the use of the M or DF bits or the Reserved bit.... Normally the offset is calculated on 13 bits while the other 3 bits are used for M, DF, Reserved

In reply to Re^2: how to change ip flags with net::rawip? by kroupouk
in thread how to change ip flags with net::rawip? by kroupouk

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