參考資訊：
https://alberand.com/host-only-networking-set-up-for-qemu-hypervisor.html
步驟如下：
$ sudo ip link add br0 type bridge $ sudo ip addr flush dev br0 $ sudo ip addr add 192.168.100.50/24 brd 192.168.100.255 dev br0 $ sudo ip tuntap add mode tap user $(whoami) $ ip tuntap show $ sudo ip link set tap0 master br0 $ sudo ip link set dev br0 up $ sudo ip link set dev tap0 up $ sudo dnsmasq --interface=br0 --bind-interfaces --dhcp-range=192.168.100.50,192.168.100.254
設置網卡的方式可以任選下面其中一個
$ qemu -device e1000,netdev=network0,mac=00:00:00:00:00:00 -netdev tap,id=network0,ifname=tap0,script=no,downscript=no $ qemu -device virtio-net-pci,netdev=n0,mac=FE:9c:37:4a:2c:93 -netdev tap,id=n0,ifname=tap0,script=no,downscript=no
設定Guest IP in QEMU
$ sudo ip addr add 192.168.100.224/24 broadcast 192.168.100.255 dev eth0