EDNS0 client subnet in BIND 9.10

[Ray Bellis]

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