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As IPv4 addresses are being exhausted, researches on how to implement IPv6 [1] on carrier network are becoming valuable. IETF Softwire Group has proposed many useful methods, such as the Layer Two Tunneling Protocol (L2TP), towards this end. This paper firstly explains L2TP [2] tunnel technology in detail and then proposes the deployments of gateway mode and host mode in 6in4 and 4in6 scenarios. At...
The emergence of IPv6 provides a good method for solving the network address shortage. The transition from IPv4 to IPv6 has become unavoidable, so how to let IPv4 transit to IPv6 smoothly is becoming a valuable problem. This paper summarizes some basic technologies on IPv6 transition in the 3GPP access network in recent years, compares and analyzes the solutions in different scenarios.
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