The present application relates to the technical field of edge communication, and particularly relates to a method, device, equipment and
system for communication based on an edge gateway, which unifies a large number of edge devices to access a network using one
IP address through address conversion, so as to reduce the demand for IP addresses in a
public network / bearer network, save a large number of
IP address resources in the bearer network, realize intensive use of
IP address resources, reduce the demand for special network devices, and reduce hardware investment costs; the real address of an internal network object is hidden behind a
gateway address through dynamic address conversion operation, so as to reduce the security risks of internal
network topology exposure; the
session state of each request is accurately recorded, a reliable link matching basis is provided for reverse dynamic address conversion, link
confusion and conversion errors are reduced, the transparency of
bidirectional communication between a request end and an object is realized, the request end does not need to perceive the internal
network structure, and the object also does not need to
expose the real address, so that the
bidirectional communication efficiency and security are greatly improved.