RE: [EXTERNAL] Re: AERO/OMNI dropping support for SEND/CGA

Behcet,

To be clear, there is now a -52 version of the draft that bows to the pressures
of those who still insist on the /64 boundary. Earlier draft versions can still be
referenced for those who like /65+, but there is strong resistance to using the
54 “zero” bits of fe80::/10 which is where the extra prefix bits would end up
going. I was told that trying to define a use for those bits would be pushing a
“large rock up a hill”, and I have experienced that struggle firsthand.

To your comments, yes an EUN should certainly be added to figure 2 and
adding a packet flow diagram is something that can be done as well. I can’t
give a timeframe for a next draft version but will put this in a TODO note
to myself.

Thanks - Fred

From: Behcet Sarikaya [mailto:sarikaya2012@gmail.com]
Sent: Tuesday, December 01, 2020 10:17 AM
To: Templin (US), Fred L <Fred.L.Templin@boeing.com>
Cc: ipv6@ietf.org
Subject: [EXTERNAL] Re: AERO/OMNI dropping support for SEND/CGA

Hi Fred,

In draft-templin-6man-omni-interface-51

I could not see EUN in Figure 2.
Also a figure showing the flow of packets in the network from source to destination is missing.

Maybe you need an architecture draft to clear these things out.

Behcet

On Mon, Nov 30, 2020 at 4:12 PM Templin (US), Fred L <Fred.L.Templin@boeing.com<mailto:Fred.L.Templin@boeing.com>> wrote:
Folks, this is a big decision point for the AERO/OMNI drafts but I am preparing
to drop support for SEND/CGA (RFC3971; RFC3972). This means that IPv6 ND
message authentication on OMNI interfaces will use a simple HMAC the same
as is done for Teredo (RFC4380; RFC6081). If anyone knows why that might
cause problems, it would be best to speak up now.

Fred

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