Connection establishment method, server, accessed node, access node, and storage medium

A connection establishment method applied to an accessed node, comprising:

• sending a connection establishment request to a server and establishing a connection to the server so that the server acquires accessed connection information of the accessed node and forward the accessed connection information to an access node;
• receiving access connection information of the access node from the server;
• sending hole punching data to the access node according to the access connection information to open up a connection channel between the access node and the accessed node;
• and
• receiving the connection establishment request from the access node according to the accessed connection information and establishing a connection to the access node.

A connection establishment method applied to an access node, comprising:

• sending an accessed address request to a server so that the server acquires access connection information of the access node and forward the access connection information to an accessed node so that the accessed node opens up a connection channel between the access node and the accessed node according to the access connection information;
• receiving accessed connection information of the accessed node from the server;
• and
• in a case where the connection channel is opened up, establishing a connection to the accessed node according to the accessed connection information.