<Apologies that this ia a bit old, but it repeats a - sadly - very common
misperception that is worth correcting yet again.>
> From: Iljitsch van Beijnum <iljitsch(_at_)muada(_dot_)com>
> If a protocol doesn't need port numbers or a UDP-like checksum (i.e.,
> either no checksum or a better one)
UDP does provide for packets with no checksum. Read the spec:
"An all zero transmitted checksum value means that the transmitter
generated no checksum (for debugging or for higher level protocols that
don't care)."
(Minor pet peeve: we did blow it very microscopically, IMO; the reserved
value should have been all ones, not all zeros, as all ones could never be a
legitimate output from the checksum-generation step, but that's a minor
quibble.)
Noel
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