How to set up a network between virtual machines on different hosts (QEMU/KVM)?

Question

Computer networks

There are two (host1, host2) pieces of iron with kvm installed on them.
Created one VM on each host.
How to make the VM on host1 see the VM on host2 (ping, netcat)?

Answer 1

Different virtual machines have their own network devices, combine them into a bridge (in win this is called a network bridge), you can combine them together with a physical network card, then from the network point of view these virtual machines will simply become separate devices on the local network, and your dhcp server (router) will give them each their own address (and NAT will work if used).

Answer 2

maybe someone has a configured environment, to look at the configs with one eye.