[EMAIL PROTECTED] wrote:
UDP verifys integrity and correct length of a UDP packet
by the checksum. Length field not required to make
sure "complete".
Still seems like UDP length field serves no purpose that
can't be done some other way.
You assume that UDP must go over IP. That is not true.
UDP must be self-sufficient irrespective of any underlying protocol
(like IP).
Requiring a checksum computation on each packet simply to verify length
integrity would be computationally painful. Most UDP packets that I see
in Ethereal never bother with checksums.
-a
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