How to setup bridge networking with kvm on ubuntu

How to setup bridge networking with kvm on ubuntu. I did switch from WIndows to Ubuntu 20.04 on my computer, so need to do some reconfiguring on my virtualization setup. Commands: /etc/sysctl.d/bridge.conf net.bridge.bridge-nf-call-ip6tables=0 net.bridge.bridge-nf-call-iptables=0 net.bridge.bridge-nf-call-arptables=0 ACTION=="add", SUBSYSTEM=="module", KERNEL=="br_netfilter", RUN+="/sbin/sysctl -p /etc/sysctl.d/bridge.conf" virsh net-destroy default virsh net-undefine default virsh net-define host-bridge.xml virsh net-start host-bridge virsh net-autostart host-bridge