Abstract: The preferred method involves segmenting the routable IP address space of a Cable Modem Termination System (CMTS) to identify clients requiring differentiated QoS by assigning IP addresses from reserved ranges. The IP addresses are assigned to home clients/the Wi-Fi AP and roaming users based on special DHCP options inserted by the Wi-Fi AP DHCP Proxy software on behalf the Wi-Fi AP and home client devices and roaming devices using the Wi-Fi AP. This creates potentially multiple service classes whereby IP addresses from the reserved ranges are included in traffic classifiers that cause packets to map to service flows which provide for differentiated QoS to the Wi-Fi AP owner, home clients and roaming users on the cable access network.