In previous versions of GNOME (such as the version in RHEL 7.6), an active NetworkManager connection profile for virbr0 caused a wired Ethernet connection to appear in the top bar in GNOME Shell. It seems this is actually now suppressed, and GNOME Control Center does not expose the virbr0 device on the network panel (or allow it to be configured there).
For users who are looking to check if a NetworkManager connection profile is active excluding libvirt's, disabling NetworkManager's control of the bridge devices still seems to me like an appropriate method to adjust the behavior of nm-online. I'm not sure I agree with the comment about *never* using ifcfg: the configuration I provided above is equivalent to setting "unmanaged-devices=interface-name:virbr0" in /etc/NetworkManager/NetworkManager.conf. It is read by NetworkManager's ifcfg-rh settings plugin, versus NetworkManager's keyfile settings plugin. It's also worth mentioning that libvirt allows hook scripts to be run when a virtual network switch is started/stopped, which can substitute for NetworkManager dispatcher scripts for these devices: https://libvirt.org/hooks.html -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to network-manager in Ubuntu. https://bugs.launchpad.net/bugs/1432599 Title: Network-manager tries to manage virbr0, which it should not Status in network-manager package in Ubuntu: Confirmed Status in network-manager package in Fedora: Won't Fix Bug description: Since a recent upgrade in vivid, nm is trying to manage virbr0. This results in my main machine not getting a real IP address on eth0, and virtual machines not being able to use the network. This is probably related to https://bugzilla.redhat.com/show_bug.cgi?id=1166199 ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: network-manager 0.9.10.0-4ubuntu11 ProcVersionSignature: Ubuntu 3.19.0-9.9-generic 3.19.1 Uname: Linux 3.19.0-9-generic x86_64 ApportVersion: 2.16.2-0ubuntu3 Architecture: amd64 CurrentDesktop: Unity Date: Mon Mar 16 12:36:07 2015 IfupdownConfig: # interfaces(5) file used by ifup(8) and ifdown(8) auto lo iface lo inet loopback InstallationDate: Installed on 2014-12-13 (92 days ago) InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1) IpRoute: default via 10.0.0.1 dev eth0 proto static metric 1024 10.0.0.0/24 dev eth0 proto kernel scope link src 10.0.0.75 192.168.111.0/24 dev wlan0 proto kernel scope link src 192.168.111.8 192.168.122.0/24 dev virbr0 proto kernel scope link src 192.168.122.1 NetworkManager.state: [main] NetworkingEnabled=true WirelessEnabled=true WWANEnabled=true WimaxEnabled=true SourcePackage: network-manager UpgradeStatus: No upgrade log present (probably fresh install) http_proxy: http://localhost:8118/ nmcli-nm: Error: command ['nmcli', '-f', 'all', 'nm'] failed with exit code 2: Error: Object 'nm' is unknown, try 'nmcli help'. no_proxy: localhost,127.0.0.0/8,::1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1432599/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
