https://www.linuxhotel.de/course/dhcp-en/
dhcp with KEA - Linuxhotel
dhcpkealinuxhotel
https://reports.kea.isc.org/dev_guide/d4/d45/classisc_1_1dhcp_1_1ControlSocketsParser.html
Kea: isc::dhcp::ControlSocketsParser Class Reference
isc dhcpkeaclassreference