Win10 bridging network card enables QEMU virtual machine to access the network normally

1、 stay Windows Installed on the host TAP Network card driver :

Downloadable openvpn Client software , Install only one of them TAP drive ; In a network connection , You will see a new network card , Attributes are similar to TAP-Win32 Adapter…, Change its name to tap0.

Tap-windows Download address ：

https://en.filetogo.net/app/tap-windows

2、 take tap0 Virtual network card and Windows Bridge with a real network card connected to the Internet :

Choose Windows network card , In network card properties - Sharing interface , Check “ Allow other network users to pass through the Internet Connect to connect (N)”, After that Home network connection Select... In the selection box tap0;

3、qemu To configure :

Add the following network parameters on the virtual machine startup command line ：

-net nic -net tap,ifname=tap0

Parameter meaning ：-net nic To express hope QEMU Create a virtual network card in the virtual machine ,-net tap Indicates that the connection type is TAP, And specify the network card interface name ( Just created tap0, It is equivalent to connecting the virtual machine to the bridge ).

Such as ： Start command

qemu-system-aarch64.exe -m 8192 -cpu cortex-a72 -smp 8,sockets=4,cores=2 -M virt -bios E:\vm\arm64\QEMU_EFI.fd -device VGA -device nec-usb-xhci -device usb-mouse -device usb-kbd -drive if=none,file=E:\vm\arm64\kylindisk.qcow2,id=hd0 -device virtio-blk-device,drive=hd0 -drive if=none,file=,id=cdrom,media=cdrom -device virtio-scsi-device -device scsi-cd,drive=cdrom -net nic -net tap,ifname=tap0,script=no,downscript=no