>>	hmm.  i see.  we should implement $2$ as openbsd does (there's no need
>>	to be different), and the above algorithm can become $3$.
>
>	minor correction - openbsd uses $2a$.  $2$ was used in the past but
>	found to be buggy (if i understand correctly)

minor curiosity...do these numbers get assigned by anyone in
particular, or do random implementors just pick a number at least one
higher than the last one they saw somewhere?  i first saw $1$ in use
on ciscos, which is not to say that they originated it.  $2$ logically
follows after $1$, but...are there any rules?  or is it just that the
first implementor invents the "standard"?

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