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UDP (user datagram protocol) channel detection method and UDP (user datagram protocol) channel detection device

A detection method and channel technology, applied in the field of network communication, can solve problems such as blocking UDP message transmission, failure to establish SSLVPN channels, and inability to forward SSLVPN business messages, so as to ensure smooth transmission and improve the efficiency of discovering available UDP channels The effect of probability

Active Publication Date: 2016-10-05
HANGZHOU DPTECH TECH
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  • Claims
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Problems solved by technology

When using UDP (User Datagram Protocol, User Datagram Protocol) to transmit SSL VPN service packets, due to the complexity of the network environment, the transmission of UDP packets may be blocked, so that the SSL VPN channel cannot be established and the SSL VPN service cannot be performed. message forwarding

Method used

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  • UDP (user datagram protocol) channel detection method and UDP (user datagram protocol) channel detection device
  • UDP (user datagram protocol) channel detection method and UDP (user datagram protocol) channel detection device
  • UDP (user datagram protocol) channel detection method and UDP (user datagram protocol) channel detection device

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Embodiment Construction

[0032] The exemplary embodiments will be described in detail here, and examples thereof are shown in the accompanying drawings. When the following description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementation manners described in the following exemplary embodiments do not represent all implementation manners consistent with the present application. Rather, they are merely examples of devices and methods consistent with some aspects of the application as detailed in the appended claims.

[0033] The terms used in this application are only for the purpose of describing specific embodiments, and are not intended to limit the application. The singular forms of "a", "said" and "the" used in this application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings. It should also be understood that the term "and...

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Abstract

The present invention provides a UDP (user datagram protocol) channel detection method and a UDP (user datagram protocol) channel detection device. The method includes the following steps that: a destination port number is selected from a port number list; a channel detection message is sent to a server according to the destination port number; whether a channel response message which is generated by the server for responding to the channel detection message is received in a preset message response duration is judged, if the channel response message which is generated by the server for responding to the channel detection message is not received in the preset message response duration, whether unselected destination port numbers exist in the port number list is confirmed; and when unselected destination port numbers exist in the port number list, one destination port number is selected from the unselected destination port numbers, and the method returns to execute UDP channel detection operation. With the UDP channel detection method and the UDP channel detection device of the invention adopted, the probability of discovering available UDP channels can be improved, and the smooth transmission of relevant services can be ensured.

Description

Technical field [0001] This application relates to the field of network communication technology, and in particular to a UDP channel detection method and device. Background technique [0002] SSL (Secure Sockets Layer, Secure Sockets Layer) VPN (Virtual Private Network, Virtual Private Network) is the simplest and safest solution technology for remote users to access sensitive company data. When using UDP (User Datagram Protocol, User Datagram Protocol) to transmit SSL VPN service packets, due to the complexity of the network environment, the transmission of UDP packets may be blocked, so that SSL VPN channels cannot be established and SSL VPN services cannot be established. Message forwarding. Summary of the invention [0003] In view of this, this application provides a UDP channel detection method and device. [0004] Specifically, this application is implemented through the following technical solutions: [0005] This application provides a UDP channel detection method, which i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/26H04L29/06
Inventor 康智勇
Owner HANGZHOU DPTECH TECH
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