Re: [radext] Fwd: New Version Notification for draft-dekok-radext-reverse-coa-01.txt

[Alexander Clouter <[e-mail]>]

On Thu, 27 Jul 2023, at 23:33, Alan DeKok wrote:
>   Updated with minimal changes.
> 
>> Begin forwarded message:
>> 
>> A new version of I-D, draft-dekok-radext-reverse-coa-01.txt
>> has been successfully submitted by Alan DeKok and posted to the
>> IETF repository.
>> 
>> Name: draft-dekok-radext-reverse-coa
>> Revision: 01
>> Title: Reverse CoA in RADIUS
>> Document date: 2023-07-27
>> Group: Individual Submission
>> Pages: 10
>> URL:      https://www.ietf.org/archive/id/draft-dekok-radext-reverse-coa-01.txt
>> Status:   https://datatracker.ietf.org/doc/draft-dekok-radext-reverse-coa/
>> Html:     https://www.ietf.org/archive/id/draft-dekok-radext-reverse-coa-01.html
>> Htmlized: https://datatracker.ietf.org/doc/html/draft-dekok-radext-reverse-coa
>> Diff:     https://author-tools.ietf.org/iddiff?url2=draft-dekok-radext-reverse-coa-01

Section 4:

Any reason why the server could not just send a CoA and record if it was accepted? This could be extended to pre-emptively send CoA's for sessions that cannot exist to capture if there is a response.

An observed ACK/NAK would be indicative that reverse CoA is supported whilst no response (the client would drop the packet, right?) is "no support".

This sort of is what happens for traditional forward proxying of CoA as you do not know if the visited site supports CoA.

I would not be too surprised if a number of embedded clients just processed the CoA on whatever socket it appeared on.

Of course NASs are strange things and I yield to your experience, but I figure if it is going to barf on a reverse CoA there is a chance it would barf on the Status-Server too...right?

As a bonus, for RADIUS/UDP, if done when there was recently a packet, the CoA may still make it through the door :)

Section 5:

I think this "It is not one-to-one, or 1-N, or M-1." is easier to read as " It is not one-to-one, or 1:N, or M:1. It is many-to-many." (ratio style).

I personally read '1-N' and 'M-1' as a calculation.

Misc:

s/addressible/addressable/g
s/identies/identities/g
s/usally/usually/g
s/practial/practical/g
s/acknowlegement/acknowledgement/g
s/sufficiant/sufficient/g
s/Eduroam/eduroam/g

Cheers