My host has 1 Ethernet controller with the IP address 192.168.1.2/24, and I want the virtual machine to be on the same subnet with the address 192.168.1.3/24.
Basically it is making a bridge interface on the host with the old IP address, and a tap interface as a member of that bridge, and use that tap interface as the backend of the virtual machine network interface. All tutorial I found always instruct me to use libvirt or virt-manager. I don't want any layer of abstration, and want to manually create the bridge on the host and use pure qemu-system-x86_64 syntax.
How can I do it? Command line syntax is fine, but I am also interested in netplan syntax because it is persistent between Ubuntu reboots. I can create the bridge using netplan configuration file already, but do not know how to add a tap device to it.
