Re: Extending a /64

[Nick Hilliard <[e-mail]>]

Mark Smith wrote on 19/11/2020 19:56:
> What makes you think that once you have a high order prefix, you have 
> the freedom to arbitrarily define the format and semantics of any of the 
> low order bits?

the cart needs to go before the horse.

If Tony is saying that ipv6 assignments to aircraft could - even 
possibly - be used to directly connect to other third party networks, 
then ULA is inappropriate and we can park that discussion.  This leaves 
GUA or something else from other IANA-reserved address space.

Thing is, if an organisation feels that their needs for ip address 
allocation are sufficiently different from everyone else's in the world 
that they need to bypass the RIRs and apply for a direct IANA 
reservation - whether that be in GUA space or not - then the 
organisation needs to make a case which justifies this ask.

Obviously there's no problem discussing ideas on 6man to get the lay of 
the land, but bypassing the RIRs for addressing requirements seems to be 
an extraordinary ask, and an extraordinary request will need 
extraordinary justification.

Nick