ZeroClover
commented
1 month ago The feature has been implemented, and it is called "EDNS Client Subnet", aka ECS.
If your DNS server can properly handle the EDNS extension, then it can retrieve the original client IP from the ECS.
Unfortunately, due to privacy concerns, ECS generally does not pass the exact client IP to the upstream DNS, but rather passes the precision of IPv4 /24 & IPv6 /56.
miladtempaccount
Prerequisites
[X] I have checked the Wiki and Discussions and found no answer
[X] I have searched other issues and found no duplicates
[X] I want to request a feature or enhancement and not ask a question
The problem
I use an upstream DNS for my clients based on their CIDR ( it's a geo load balancing DNS server ), now I want to be able to cache the client ip and server that has been told to client for 24 hour and as I only see adguard home IP address its impossible to do such, how can I do it ?
actually I want to achieve sticky sessions or something like that via this trick
flow :
Client => adguard home => upstream DNS
Is there any solution for me ?
Proposed solution
if there would be an option to send client ip to upstream dns it would be great or I don't know something like that
Alternatives considered and additional information
replace the adguard with my upstream DNS and develop what ever I need from adguard on that DNS system