I have been researching this for a while and I have not been able to come up with anything. Here is what I would like to do.

I have some network access equipment that has dhcp relay options (option 82) that I am using. I primarily use them for statically assigning IP's to a given device on a given port on my access equipment. However, what I would like to do is have the option 82 information that gets sent with the request packet added to the leases file. The reason for this is so that I can look in the leases file and see where a given IP/MAC address was connected to my network.

Hopefully this isn't too confusing, but if it is let me know and I can try explaining it more.