Patent ID: 11863516
Assignee: ZTE CORPORATION
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A method for implementing carrier grade network address translation, comprising:
transmitting a first request to a control plane of a forwarding and control separated broadband access system, wherein the first request is used for applying to the control plane for a public network address range; receiving a first response returned by the control plane, wherein the first response comprises allocated public network address range information;
receiving a public network address allocated to a user by the control plane according to the public network address range information; receiving a private network address allocated to the user by the control plane;
performing, according to the public network address and the private network address, public and private network address translation on received service traffic of the user;
receiving a second request transmitted from the control plane, wherein the second request is used for querying a state of the public network address range; and
returning a second response to the control plane, wherein the second response comprises the state of the public network address range.