- METHOD AND NETWORK ELEMENT FOR ENHANCING DS-LITE WITH PRIVATE IPV4 REACHABILITY

摘要

A method implemented in a network element to enable a first device assigned an IPv4 private address to access a second device using Internet Protocol Version 6 (IPv6), the method comprising the steps of: Receiving an IPv6 formatted data packet having an IPv6 address and transmitted from a second device; Determining whether a virtual IPv6 address includes a representation prefix (RP); Transmitting an AMQ (address map query) to a customer premise equipment (CPE), the CPE storing a mapping between a private IPv4 address and a virtual IPv6 address of the first device; Receiving an address map response (AMR) from the CPE with a private IPv4 address corresponding to the virtual IPv6 address; Translating an IPv6 formatted data packet into an IPv4 formatted data packet; And transmitting the transformed data packet across the IPv6 tunnel to the CPE over IPv4.