A data communication method and related equipment thereof

Abstract

The invention discloses a data communication method. The method comprises the following steps: obtaining a network node list of public nodes; selecting a target node from the network node list, and sending a P2P punching request to the target node through the common node; receiving punching reply information returned by the target node according to the P2P punching request; and establishing a connection with the target node according to the punching reply information, and carrying out data communication. The invention also discloses a data communication device and system, a computer readable storage medium and a computer program product. Technical scheme realized by the invention can be in an intranet and does not support UPNP and NAT-PMP. The nodes mapped by the PMP are connected with other nodes except the nodes with the public network addresses or the nodes successfully mapped by the UPNP, data communication is achieved, the connection pressure of the nodes with the public network addresses or the nodes successfully mapped by the UPNP is greatly reduced, and normal operation of the Ethereum is effectively guaranteed.

Description

technical field [0001] The present invention relates to the technical field of communication, in particular to a data communication method, and also to a data communication device, system, computer-readable storage medium and computer program product. Background technique [0002] In Ethereum, nodes send UDP (User Datagram Protocol, User Datagram Protocol) protocol for data transmission between nodes to complete inter-node communication. Among them, each Ethereum node will save a network node list, the network node list mainly includes the IP addresses and port information of multiple nodes, and these nodes are all nodes that can be connected to the node. [0003] However, since Ethereum only supports UPNP (Universal Plug and Play) and NAT-PMP (NAT PortMapping Protocol) mapping, other nodes cannot establish connections with nodes that are on the intranet and do not support UPNP and NAT-PMP mapping, so , this part of the internal network nodes can only actively connect to no...

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Problems solved by technology

[0004] The main purpose of the present invention is to provide a data communication method, device, system, computer-readable storage medium and computer program product, aiming to solve the problem that nodes in the prior art that are in the intranet and do not support UPNP and NAT-PMP mapping can only Establish a connection with a node with a public network address or a successful UPNP mapping for data communication, resulting in excessive connection pressure for nodes with a public network address or a successful UPNP mapping, and a high risk of normal operation of Ethereum

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