On Mon, 8 Jul 2013 11:55:10 +0200 Stephane Bortzmeyer <[email protected]> wrote:
> > The extention is only visible when you query an authorative server > > using an ECS capable client, like a patched dig. > > Yes, that's what I thought. So you confirm no software resolver today > sets this option? If so, it is not really deployed. ah, now I get your question. Indeed, it is not deployed on the "client side" but public dns providers like google rely on it heavily by using this to transport the client IP address, or parts of it, from the frontend servers - reachable as 8.8.8.8 - to the backend servers and whitelisted third party authoritative resolvers. By this the authoritative server sees the subnet of the client that is using google as forwarder, although it is only contacted by a google backend server. _______________________________________________ DNSOP mailing list [email protected] https://www.ietf.org/mailman/listinfo/dnsop
