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--- Begin Message ---
Hi,

I want to use a mark to annotate that a packet has gone through REDIRECT.

Looking at mwan3 I see that it uses 0xfc00 for its marking.

I have a couple of questions:

(1) Why does this require 6 bits out of a 16-bit field?  Why isn't a single bit 
adequate?

(2) How does a package "reserve" a bit for marking such that the same bit 
doesn't get re-used by another package and create conflict/ambiguity?  i.e. who 
manages the assignment of masks and in what file is this recorded?

Thanks,

-Philip



--- End Message ---
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