Description from DHCP to username in lightsquid

[maci4]

Hello
I have a question:
How can I update list user (IP -> name) to lightsquid from server DHCP (IP and description) like this:
When IP in lightsquid is in DHCP server then change user name in lightsquid to name from column 'description' in DHCP server.
Thank you for all answers :-)