I use e.g. 8.8.8.8 as my DNS server. When that server needs to request a record for me, the other servers it connects to will only see 8.8.8.8. With this extens

I use e.g. 8.8.8.8 as my DNS server. When that server needs to request a record for me, the other servers it connects to will only see 8.8.8.8. With this extension, the 8. server will embed my subnet into the request and allow upstream servers to see part of my IP.