Daniel and Tero,
How do diet-esp and minimal-esp intersect?
minimal-esp is, it seems ready for publication, so nothing really
changing it is possible.
But what does diet-esp do instead?
Squeezing down esp and adding support for SCHC ('easy' by adding it as
an IP Protocol) is of interest to me...
Bob
On 4/21/22 10:36, Daniel Migault wrote:
The question we are asking ourselves is should we re-write the spec
with SCHC.
Yours,
Daniel
On Thu, Apr 21, 2022 at 9:58 AM Tero Kivinen <kivi...@iki.fi> wrote:
Robert Moskowitz writes:
> Yet in 8724, they define a in-band header:
>
> |------- Compressed Header -------|
>
> +---------------------------------+--------------------+
>
> | RuleID | Compression Residue | Payload |
>
> +---------------------------------+--------------------+
>
> How do you include this? This is especially needed with
CoAP, rfc 8824.
>
> What is preconfigured is what does the RuleID instruct you
to do with that
> compression residue.
>
> A bit more on this. When above Transport as in 8824, the port
number needs to
> know how to process the RuleID. When below IP as in 9011, the
MAC needs a
> type assigned for SCHC to know to use the RuleID for IP/whatever
expansion.
> MAC types are not the IETF's problem.
>
> It takes something like ESP that sits below Transport, to change
this. Thus
> this COULD be an lpwan issue for introducing SCHC, or it could
be an ipsecme
> issue as as far as I can think, only ESP presents this issue.
You might want to check the Diet ESP work that was done in the IPsecME
WG few years back. It mostly died because there was not enough
interest to work on the drafts or implementations.
https://datatracker.ietf.org/doc/draft-mglt-ipsecme-diet-esp/07/
This is still in the IPsecME charter item so if there is interest to
start working on this then IPsecME WG has space for it:
A growing number of use cases for constrained networks - but not
limited to those networks - have shown interest in reducing ESP
(resp. IKEv2) overhead by compressing ESP (resp IKEv2) fields. The
WG will define extensions of ESP and IKEv2 to enable ESP header
compression.
Possible starting points are draft-mglt-ipsecme-diet-esp,
draft-mglt-ipsecme-ikev2-diet-esp-extension,
draft-smyslov-ipsecme-ikev2-compression and
draft-smyslov-ipsecme-ikev2-compact.
--
kivi...@iki.fi
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Daniel Migault
Ericsson
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