Non-awareness network bridging method based on wireless network card

Abstract

The invention discloses a non-awareness network bridging method based on a wireless network card. The non-awareness network bridging method comprises the steps of: installing a driven network protocol corresponding to a promiscuous mode on the wireless network card of a windows system where a virtual machine is located; monitoring whether the virtual machine has data to be sent to the wireless network card or whether the wireless network card end receives the data to be sent to the virtual machine by using the driver; if monitoring that the virtual machine or the wireless network card has data to be sent through the driver, converting a source address of a sender and a network protocol according to a set condition, then sending the data to a receiver, establishing non-awareness network bridging through the protocol driver based on the wireless network card in the windows kernel, when the virtual machine carries out network transmission through the wireless network card of the host machine, not influencing the normal internet surfing function of the host machine, and achieving non-perception network data connection of the virtual machine.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a wireless network card-based non-perception network bridging method and a device thereof. Background technique [0002] A virtual machine refers to a complete computer system that is simulated by software and has complete hardware system functions and runs in a completely isolated environment. Everything that can be done on a physical computer can be done on a virtual machine. When creating a virtual machine on a computer, part of the hard disk and memory capacity of the physical machine needs to be used as the hard disk and memory capacity of the virtual machine. Each virtual machine has an independent CMOS, hard disk and operating system, and the virtual machine can be operated like a physical machine. [0003] In a Windows-based qemu virtual machine, there are two ways to allow the virtual machine to access the Internet. One is NAT (Network Address Translatio...

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Problems solved by technology

[0003] In a Windows-based qemu virtual machine, there are two ways to allow the virtual machine to access the Internet. One is NAT (Network Address Translation), but using NAT to achieve Internet access requires unified planning of the IP addresses of the virtual network and the LAN. , because this method is implemented by pure software and has incomplete functions (for example: it does not support the icmp protocol and cannot ping), so most people will choose to use the bridging method to enable the virtual machine to realize the Internet access function

[0004] In the prior art, it is usually necessary to use the TAP virtual network card, and then use the method of creating a network bridge in windows for network bridging to realize the windows qemu virtual machine to access the Internet, but this method often leads to disconnection of the network for a while in practice or cannot Restoration, it is very risky to apply it to the product

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