An embodiment method may comprise establishing a link layer connection to an access server, obtaining a management address, wherein the management address is at least one of an IPv6 and an IPv4 address, obtaining a TFTP server address, wherein the server address is either IPv6 or IPv4, downloading a configuration file from the TFTP server, and registering with the access server as IPv6 capable. Another embodiment may be a cable modem termination system (CMTS) comprising a port to receive downstream internet protocol (IP) traffic, a processor in communication with the port, the processor to classify downstream traffic based on fields in IP version 6 (IPv6) headers; and a radio frequency port in communication with the processor, the radio frequency port to send downstream traffic from the CMTS, wherein the processor uses a flow label as the downstream classifier so IP addresses can remain encrypted in the downstream traffic. Another embodiment method may comprise receiving a ranging request from a cable modem, assigning the cable modem a service identifier, matching the service identifier with a link layer address of the cable modem, receiving a router advertisement and comparing the source link layer address from the router advertisement to the link layer address of the cable modem, and determining that the router advertisement was sent from the cable modem if the link layer address of the cable modem is the same as the source link layer address. And yet another embodiment may be a system comprising a first local network, a second local network coupled with the first local network, the second local network comprising a home agent, and a wireless device with IP connectivity to the home agent, the wireless device able to move from the first local network to the second local network and maintain IP connectivity with the home agent. Another example embodiment may be an apparatus comprising a port to communicate over a link layer connection to an access server, and a processor coupled with the port, the processor to communicate through the port with the access server and obtain at least one of an IPv6 or IPv4 management address, the processor further to obtain at least one of an IPv6 or IPv4 TFTP server address from the access server, and the processor to download a configuration file through the port from the TFTP server and register through the port with the access server as IPv6 capable. An embodiment may be a cable modem termination system (CMTS) comprising a port to receive configuration information from a cable modem, a memory in communication with the port, the memory to store the cable modem configuration information, and a processor in communication with the port and the memory, the processor to access the configuration information, determine at least one cable modem setting, and output the at least one cable modem setting.