公开(公告)号：US20220224670A1

公开(公告)日：2022-07-14

申请号：US17615324

申请日：2020-06-23

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Renzhi YANG ,  Bin WANG ,  Jiyong JIANG ,  Teng ZHANG ,  Yanming LI

IPC: H04L61/2517 ,  H04L61/256 ,  H04W76/14 ,  H04W60/04 ,  H04W76/12

Abstract: Embodiments of this application disclose a communication method and a related device. The method includes: A symmetric device listens on N local public ports, where N is a natural number greater than 1; and when the symmetric device receives a hole punching packet from the N local public ports, the symmetric device sends a response packet to a cone device based on the hole punching packet, so that the symmetric device establishes a communication connection to the cone device, where the hole punching packet is sent by the cone device, and the response packet carries a first network information mapping relationship. The cone device may directly communicate with the symmetric device, so that there is no need for a server having a data relay function, and costs of deploying the server are reduced.