<snip>

> > I.e., either this document needs to formally update RFC 4303 by allowing
> any
> > number or another IP protocol number must be requested to the IANA.
>
> As I pointed out in my previous email that is not the case.
>
> The RFC4303 ESP has a Next Header field which contains indicates what
> type of packet is inside the ESP packet. It typically contains IP
> Protocol Numbers, but not always. Thats why the RFC4303 above says
> "chosen from the set of IP Protocol Numbers".
>

I disagree.  4303 S2.6 is very clearly talking about the Protocol Numbers
registry (the example of "41 means IPv6" is one of the things that give it
away).

I think this document needs to request a protocol number from IANA.
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