Data transmission method and equipment
A data transmission method and equipment technology, applied in the field of communication, can solve problems such as complex configuration process, failure to send data successfully, low efficiency, etc., and achieve the effect of improving data transmission efficiency
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[0042] The present invention proposes a data transmission method, which is applied to a system including a sending end device, a receiving end device and a firewall device, such as image 3 As shown, the method includes the following steps:
[0043]Step 301, the sending end device determines that it needs to send data to the receiving end device through the firewall device, the data includes IP layer, TCP (Transmission Control Protocol, Transmission Control Protocol) layer or UDP (User Datagram Protocol, User Datagram Protocol) layer.
[0044] In the present invention, when the data is TCP data, the data includes the IP layer and the TCP layer, and the TCP layer carries the destination port identification and the source port identification of the data; when the data is UDP data, the data includes It includes an IP layer and a UDP layer, and the UDP layer carries the identifier of the destination port and the identifier of the source port of the data.
[0045] In step 302, the...
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