Hi, I made a simple script to run in dom0 (easy to audit) that will output a hierarchy tree of netvm and their qubes.
This is a rather simple rendering to figure your network topology.
You can get the sources from the git repository https://git.sr.ht/~solene/qubes-os-netvm-map
As an alternative, there is a tool generating a graph picture, but I can't remember the name. They can coexist well, I prefer mine because it has no dependency and works fine for me ~20 qubes, but for more complicated setup it may not be sufficient (also, one may not like how it looks).
Output example:
ONLINE QUBES
------------
sys-net:
| sys-firewall:
| | sys-vpn-protonvpn-wg:
| | | Tuta
| | sys-vpn-2hop:
| | | sys-whonix:
| | | | whonix-workstation-17-dvm
| | | | Wallet-watching
| | | | anon-whonix
| | | SSB
| | Windows10-install-fresh
| | default-dvm
| | Storage
| | sys-vpn-ivpn-wg-amsterdam:
| | | sys-vpn-intranet:
| | | | Communication
| | | | WWW-disposable
| | | | disp5436
| | Development
sys-usb
OFFLINE QUBES (no netvm)
------------------------
- fedora-39-xfce
- vault
- whonix-gateway-17
- default-mgmt-dvm
- whonix-workstation-17
- fedora-39-xfce-simple