We're using Kea DHCP server. The Valid Lifetime set on the Settings tab is sufficient for most of our subnets. However, there are a couple subnets that require a shorter lease time.
Which Option code, if any, overrides the value set on the Settings tab? There isn't a code that says "valid lifetime". The closest I found is "renewal time [58]", but because this is a production router, I cannot do trial and error. Is "renewal time [58]" the correct code to overrride default valid lifetime?
UPDATE:
The code I mentioned above is for IPv4. I also need the correct code for IPv6. Please and thanks.