On Tue, 2 Jun 2020 at 06:39, Jerry Geis <jerry.geis at gmail.com> wrote: > Hello. I desire to get bridge network working using virt-manager. > Centos 7 and centos 7 guest. > > From researching I think I need to have a ifcfg-br0 file like this ? > > cat ifcfg-br0 > DEVICE=nm-bridge0 > STP=no > TYPE=Bridge > BOOTPROTO=none > IPADDR=192.168.1.8 > PREFIX=32 > GATEWAY=192.168.1.1 > IPV6INIT=no > NAME=br0 > ONBOOT=yes > DELAY=0 > Our virt-hosting systems all use bridges and I have the following setup for eth0 and br0 # ifcfg-eth0 NAME="eth0" TYPE=Ethernet ONBOOT=yes NETBOOT=yes BRIDGE="br0" UUID="<fill in uuidgen here>" HWADDR="<fill in mac address here>" # ifcfg-br0 NAME="br0" DEVICE="br0" ONBOOT=yes NETBOOT=no UUID="<<fill in uuidgen here>>" IPV6INIT=no BOOTPROTO=none IPADDR="<< fill in ip address >>" NETMASK="<< fill in netmask >>" GATEWAY="<< fill in gateway >>" TYPE=Bridge NAME="br0" DNS1="<< fill in dns1 >>" DNS2="<< fill in dns2 >>" STP="no" On EL8 systems it changes somewhat. If you just wants a bridge with no ip address associated with it.. leave those out. Some switches need that -- Stephen J Smoogen.