DHCPREQUEST processing (Kea 1.8.0)A lease was assignedAdd reserved classesClassify required classesBuild configured option listAppend requested optionsAppend requested vendor optionsAppend basic optionsSet fixed fieldsEntry pointSelect subnethook pointFind host reservationAdd either KNOWN or UNKNOWN classClassify (2nd pass)Process client nameAssign a leaseAdjust interface dataAppend server IDon success exit pointReturn no responseon error exit pointhook set DROPDHCPACKDHCPNAKon error