Data transmission method and device of virtual network card

A data transmission method and technology of virtual network card, which are applied in the direction of data exchange and network interconnection through path configuration, can solve the problem that the data packets of the virtual network card cannot be transmitted correctly, and achieve low transformation cost, high processing efficiency, and guaranteed information. safe effect

Active Publication Date: 2020-05-12
HANGZHOU DPTECH TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of this, the present application provides a data transmission method and device for a virtual network card, which can solve the problem that the data packets of the virtual network card cannot be transmitted correctly

Method used

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  • Data transmission method and device of virtual network card
  • Data transmission method and device of virtual network card
  • Data transmission method and device of virtual network card

Examples

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Embodiment Construction

[0058] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present application.

[0059] The terminology used in the present invention is for the purpose of describing particular embodiments only and is not intended to limit the application. As used herein, the singular forms "a", "the", and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It should also be understood that the term "and / or" as used herein refers to and includes any and all possibl...

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Abstract

The invention provides a data transmission method and a data transmission device of a virtual network interface card. The method comprises the steps of acquiring a first IP address distributed to a target virtual network interface card by a gateway; detecting that whether the first IP address is in a same network segment with the IP address of a preset network interface card; when the first IP address is in the same network segment with the IP address of the preset network interface card, configuring a second IP address not in the same network segment with the IP address of the preset network interface card for the target virtual network interface card; and transmitting messages via the target virtual network interface card configured with the second IP address. According to the method, when the first IP address configured to the target virtual network interface card by the gateway is in the same network segment with the IP addresses of the other network interface cards, the second IP address in another different network segment is configured for the target virtual network interface card, so that the IP address conflict problem is avoided, the user information security can be ensured, and the information transmission reliability is improved.

Description

technical field [0001] The present application relates to the technical field of network communication, and in particular to a data transmission method and device of a virtual network card. Background technique [0002] VPN (Virtual Private Network, virtual private network) refers to a private network established on a public network. In order to transmit data packets between the computer and the VPN gateway in an encrypted manner, the user needs to install a VPN client corresponding to the VPN gateway (hereinafter referred to as the client). The client needs to use the VPN virtual network card (hereinafter referred to as the virtual network card) to divert the data packet to encapsulate and decapsulate the data packet, so as to complete the transmission of the data packet. [0003] With the rapid development of computer hardware, a computer can have multiple virtual network cards and physical network cards at the same time; the IP addresses of each network card are usually ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/46
Inventor 王永亮孔伟政
Owner HANGZHOU DPTECH TECH
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