How to create a virtual bridge for QEMU/KVM

If you want to play around with multiple virtual machines and various configurations with QEMU/KVM you will need a virtual bridge on your Linux machine. Here is how to make one.

[@shyamendrahazra3440]

This video is so concise and direct it made me immediately sub, keep doing theses

[@friendlyalien379]

Thank you so much

[@vinhphamquang8209]

I used to create one VM with default NAT mode, it provide ip 192.168.122.233 for my VM. Then I created a bridge ethernet, then change the NIC to Bridge with device name is nm-bridge, same as you but the after restart, it got the IP 192.168.122.233 again. I have also disable the default virtual network but still get the same result.

[@friendlyalien379]

@@vinhphamquang8209 Thanks for sharing. I am always interested in how other people do things. You can always learn something new.

[@woolfy02]

My laptop is connected to wifi and I'm trying to create a bridged network (Like in the video) I've tried but, it never seems to work. Is this possible when connected to wifi for internet? Ifconfig shows the 'nm-bridge' but no ip address. I just can't seem to figure it out.

[@friendlyalien379]

As far as I know, you can"t create bridge over WiFi with qemu and kvm. But you can with virtualbox.

[@woolfy02]

@@friendlyalien379 Dang, that's frustrating. I'll give VirtualBox a try though. Thank you.