I've been searching for edns and found these documents. They mention something called client tag and server tag. Is there any way I can implent those tags? Here is my use case: Our product teams have some services that want to query mydomain.com from public dns services. I mean, they want to reach our public IP address. Since all of their worker nodes are placed in the same network subnet, I cant use views. If I didn't misunderstand the documents below, edns has the capability of passing some keywords that are meaningless for the protocol, in that case it would be very useful for me. Otherwise I will have to spin up a recursive dns server and tell them to use the new dns server.
https://www.iana.org/assignments/dns-parameters/dns-parameters.xhtml
https://www.ietf.org/archive/id/draft-bellis-dnsop-edns-tags-01.txt
