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...http://www.google.com.tw/patents/US20060159100?utm_source=gb-gplus-share專利 US20060159100 - Use of IPv6 in access networks
