Bind, View by MAC addresses?

Question

Domain Name System

Hello. Bind has a View, with which you can flexibly configure who and what to return, but there was a problem, there is a single DNS server, and several subnets (they can be repeated, and therefore it is impossible to filter by IP). How else can you identify a client, you need to give different data for the same IP address, for example, the client came from router A with IP 192.168.0.3 and from router B with the same IP address, you need to somehow distinguish them from each other.