KVM known as kernel virtual machine uses QEMU for device emulation. In this there are two networking modes that are defined. First mode is root networking mode and another mode is network bridge mode. If the IP address to the virtual machines has to be assigned then the kvm need to be up and running. To setup the network interface across the host machine the command that is required to be followed is as follows:

/sbin/ip

/usr/sbin/brctl

/usr/sbin/tunctl