What is the meaning of an ecs log

[Darren Ankney]

Found the answer in the manual:

"Finally, if any CLIENT-SUBNET option was present in the client query,
it is included in square brackets in the format [ECS
address/source/scope]."
https://bind9.readthedocs.io/en/v9_18_9/reference.html#namedconf-statement-category

On Wed, Dec 7, 2022 at 8:25 PM Mik J via bind-users
<bind-users at lists.isc.org> wrote:
>
> Hello Daren,
>
> The entire message is
> client @0x53eda9122d0 172.16.11.2#48171 (example.org): query: example.org IN A -E(0)DC (1.2.3.4) [ECS 192.168.2.0/24/0]
>
> The version is: 9.18.7
> It's both autoritative and recursive
>
>
>
>
> Le jeudi 8 décembre 2022 à 01:56:57 UTC+1, Darren Ankney <darren.ankney at gmail.com> a écrit :
>
>
>
>
>
> Is that the entire log message or just part of it?  Is this a
> recursive or authoritative name server?  What version of bind?
>
> Logging is covered in the manual though I don't really see a
> comprehensive explanation of message format (maybe it's there and I'm
> just not seeing it).
> https://bind9.readthedocs.io/en/v9_18_9/reference.html#logging-block-grammar
>
> On Wed, Dec 7, 2022 at 7:42 PM Mik J via bind-users
> <bind-users at lists.isc.org> wrote:
> >
> > Hello,
> > I see logs like [ECS 192.168.2.0/24/0] but I don't understand what is the last /0 part.
> > Where can I get an explanation ?
> > Regards
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