Issue with setting up bridge networking (lemmy.ml)

submitted 1 year ago by nobloat@lemmy.ml to c/debian@lemmy.ml

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I've just switched from Fedora to Debian 12 and I can't seem to get bridge networking to work. I've followed the official guide and edited the /etc/network/interfaces. I double checked and everything is correct. I rebooted the system but my ethernet stopped working altogether. Are there any updated guides and common pitfalls that I should keep in mind. I need the bridge for kvm.

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[-] nobloat@lemmy.ml 1 points 1 year ago

Yes I tried that but the VMs still can't connect to it. I did the same setup as in Fedora but it doesn't work

[-] bartlbee@lemmy.sdf.org 1 points 1 year ago

I can't find my notes on how I got this to work on Debian 11 but, if I recall correctly, I had to disable NetworkManager and setup networking directly via /etc/network/interfaces. I no longer have Debian running but at the time this worked for me:

source /etc/network/interfaces.d/*

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
# allow-hotplug eno1
auto br0
iface br0 inet dhcp
    bridge_ports eno1

this post was submitted on 23 Jul 2023

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