Foundations of Libvirt Development: How to Set Up and Maintain a Virtual Machine Environment with Python

© W. David Ashley 2019

W. David AshleyFoundations of Libvirt Development https://doi.org/10.1007/978-1-4842-4862-1_6

6. Virtual Networks

W. David Ashley¹ 

(1)

Austin, TX, USA

 

A virtual network provides a method for connecting the network devices of one or more guest domains within a single host. The virtual network can do either of the following:

• Remain isolated to the host.

• Allow routing of traffic off-node via the active network interfaces of the host OS. This includes the option to apply NAT to IPv4 traffic.

A virtual network is represented by an instance of the virNetwork class and has two unique identifiers.

• Name: This is a short string, unique among all the virtual networks on a single host, both running and inactive. For maximum portability between ...