EDNS0 client subnet in BIND 9.10

Ben Croswell ben.croswell at gmail.com
Sat Nov 11 11:46:49 UTC 2017

The use case i am looking at is using ECS or some other mechanism to pass
the IP of client making the query to the global load-balancer. This
information could then be used by the global load-balancer in making
proximity decisions when crafting its response.
I.e. GLB sees and returns a given IP but if it sees the
answer is different.

On Nov 11, 2017 5:31 AM, "Ray Bellis" <ray at isc.org> wrote:

> On 11/11/2017 04:50, Mukund Sivaraman wrote:
> > I'm not sure how ECS would be useful for load-balancing, as in the best
> > case scenario it would require one to control every client side to send
> > the client-subnet option.
> It would help if Ben provided more details about what he's trying to
> achieve.
> I do have a draft that I'm trying to get adopted at IETF to allow
> client-related information to be carried from load balancer to back-end
> server.  It's not yet implemented in BIND, though:
> <https://tools.ietf.org/html/draft-bellis-dnsop-xpf-03>
> Ray
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