Connecting a physical host to libvirt NAT network

A customer sent me an industrial server for testing, pretty interesting stuff for trains, planes and boats. I have added a new PCIe NIC to my workstation and I wanted to put it inside my libvirt NAT network which I use for testing Foreman and Satellite.

Network diagram

Surpringlisly it was not easy to figure out this for me, luckily Patrick Talbert of Red Hat helped me to find a command that does exactly what I wanted:

# nmcli con add type ethernet ifname eth1 slave-type bridge master virbr0

Assuming that eth1 is the physical interface and virbr0 is libvirt NAT network bridge (named default). For different networks find the proper network with the following command:

# virsh domiflist <guest>

And with the ‘source’ network name, find the actual bridge name:

# virsh net-info <network>

Thanks to Patrick for helping me with this!

19 February 2019 | linux | fedora
twitter.com linkedin.com
google.com/+ facebook.com
flickr.com youtube.com