KVM. Host and guest can't see each other

Question

ubuntu

There is a computer running Ubuntu Server 14.04, qemu-kvm is installed on it, two (or maybe more) virtual machines are spinning under it. These virtual machines are included in a common local network and receive IP via DHCP from the main router. Virtual machines have the Internet, they see the entire local area (almost, but more on that). The host also has the Internet and it sees the local area (almost all.).
But the most interesting begins now. The host does not see the guests on the network, and the guests do not see the host. And they need to see each other. And for the guests to be visible in LAN.
Question: how to do it?

Answer 1

Solution:
1. Create an isolated network between host and guests.
2. Raise the second network with your hands in the guest.

Answer 2

You have a bridge.
How to configure bridge in KVM read here - https://debian.pro/1345