Rate-limit for DHCPv6

A customer is requesting Kea ability to rate-limit the leasing IPv6 addresses:

Furthermore, we are seeing that DHCPv6 allows a single device to request multiple IP addresses if it can randomly change the DUID. Is there some mechanism to rate-limit the leasing of IPs given to the same device?

Although this particular request is v6 specific, the same concept can be easily extended to v4.

To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information