I think there is something else I am missing here.
How does the receiving system 'know' that the packet is a diet-esp packet?
Protocol ID is ESP. That is all we have. Right after the IPv6 or IPv4
header comes the ESP header, but is it a regular ESP header with a
4-byte SPI or is it a dist-esp header with some other SPI size?
How is this done?
Is the source IP the 'key' that it is a diet-esp, and look at all the
SAs associated with that source IP and hopefully find one that maps to
at least the 1st byte or full 4 bytes?
What is the logic trigger?
And if it is the source IP, how might gateways and such mess things up.
Or am I back to needing a SCHC protocol ID to put in the Next Header
field rather than ESP?
Confused here...
Bob
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