KVM : Install

	It's Virtualization with KVM ( Kernel-based Virtual Machine ) + QEMU. It requires that the CPU on your computer has a feature Intel VT or AMD-V.
[1]	Install required packages.

root@dlp:~#  apt -y install qemu-kvm libvirt-daemon-system libvirt-daemon virtinst bridge-utils libosinfo-bin libguestfs-tools # confirm modules are loaded root@dlp:~#  lsmod | grep kvm kvm_intel 413696 0 kvm 1396736 1 kvm_intel irqbypass 12288 1 kvm

[2]	Configure Bridge networking for KVM virtual machines.

root@dlp:~#  ip address 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo valid_lft forever preferred_lft forever inet6 ::1/128 scope host noprefixroute valid_lft forever preferred_lft forever 2: enp1s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000 link/ether 52:54:00:0a:a7:f3 brd ff:ff:ff:ff:ff:ff altname enx5254000aa7f3 inet 10.0.0.30/24 brd 10.0.0.255 scope global enp1s0 valid_lft forever preferred_lft forever inet6 fe80::5054:ff:fe0a:a7f3/64 scope link proto kernel_ll valid_lft forever preferred_lft forever root@dlp:~#  vi /etc/network/interfaces # This file describes the network interfaces available on your system # and how to activate them. For more information, see interfaces(5). source /etc/network/interfaces.d/* # The loopback network interface auto lo iface lo inet loopback # The primary network interface allow-hotplug enp1s0 # change existing setting like follows iface enp1s0 inet manual #address 10.0.0.30 #network 10.0.0.0 #netmask 255.255.255.0 #broadcast 10.0.0.255 #gateway 10.0.0.1 #dns-nameservers 10.0.0.10 # add bridge interface setting # for [hwaddress] line, specify the same MAC address with physical one ([enp1s0] on this example) # set this param explicitly if different MAC address is assigned to bridge ingterface auto br0 iface br0 inet static address 10.0.0.30 network 10.0.0.0 netmask 255.255.255.0 broadcast 10.0.0.255 gateway 10.0.0.1 dns-nameservers 10.0.0.10 bridge_ports enp1s0 bridge_stp off hwaddress ether 52:54:00:0a:a7:f3 root@dlp:~#  reboot root@dlp:~#  ip address 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo valid_lft forever preferred_lft forever inet6 ::1/128 scope host noprefixroute valid_lft forever preferred_lft forever 2: enp1s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel master br0 state UP group default qlen 1000 link/ether 52:54:00:0a:a7:f3 brd ff:ff:ff:ff:ff:ff altname enx5254000aa7f3 inet6 fe80::5054:ff:fe0a:a7f3/64 scope link proto kernel_ll valid_lft forever preferred_lft forever 3: br0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000 link/ether 52:54:00:0a:a7:f3 brd ff:ff:ff:ff:ff:ff inet 10.0.0.30/24 brd 10.0.0.255 scope global br0 valid_lft forever preferred_lft forever inet6 fe80::607b:eaff:fef1:a54d/64 scope link proto kernel_ll valid_lft forever preferred_lft forever