Comment by akerl_

7 years ago

The full IP of the Cloudflare resolver doing the recursive resolution is already provided to the authoritative server, as the source IP for the DNS query traffic.

I think the parent is saying, why not spoof the EDNS client subnet information?

  • True. Copying the information would be possible, but given they’re working on other efforts to replace the functionality of EDNS ECS in a standard way, it seems like a hacky bandaid.