Re: [6lo] New I-D draft-delcarpio-6lo-wlanah-00.txt

[Carsten Bormann <[e-mail]>]

Alexandru Petrescu wrote:
> The section 8 is about HC.
> 
> I would like to ask whether HC means to eliminate the IPv6 Base Header
> and if yes then the subsequent question is whether we can still consider
> this to be "IPv6 over..." when there is no IPv6.
> 
> Because RFC2460 says that the IPv6 Base Header is mandatory.

Alex,

you are trying to make this point again and again.

Indeed, header compression is a concept that is usually not taught at
universities.  My standard talk about header compression starts with
pointing out that there isn't even a Wikipedia page about this subject!

However, as manifested in RFC 1144, there is a long tradition of using
header compression in link layer mappings for the Internet.  The fact
that you cannot make out the IPv6 header when looking at the bytes on
the air in a 6LoWPAN doesn't mean it is not being sent.  It is just
encoded in an efficient way.  (This is different from the confused idea
of "header stripping", where the IP header actually is not made
available to the recipient in a way such that it can be decoded.)

I do think your input to this WG is useful.  It would probably have more
impact if you could stop tilting at this particular windmill.

Grüße, Carsten