How to fix the IP of a given VM?

[apparatus]

@qubes_wannabe

But in any case I would be curious to know what is the service (and in which VM) that is in charge of assigning these IPs.

The IPs are assigned by Qubes tools in dom0.

@qubes_wannabe

What if, for example, I don’t like the IP that was automatically given to a new VM and I want to force it to be 19.137.0.100 (assuming it is not already taken by other VMs)?

I think it’s not supported, but you can hack it by manually setting it in the libvirt config:

Qubes networking interface

You can connect the qube to the multiple other qubes by editing its Xen config in dom0. Custom libvirt config — core-admin v4.3.11-0-gdef2249 documentation Create /etc/qubes/templates/libvirt/xen-user.xml file with this content: <!-- import default template--> {% extends 'libvirt/xen.xml' %} <!-- we wanna alter the devices block --> {% block devices %} <!-- import default device block --> {{ super() }} <!-- First network interface will be connected to the net qube defined in this…

But maybe it could conflict with the Qubes tools in dom0 since they may not be aware of your change and reuse the same IP for another qube.