Image of "sprawling" LAN diagrams?

Question

Computer networks

Task: to depict a "spreading" scheme of a local network.
Sprawling, in this context, is with the reflection of interfaces, their IP and MAC addresses, with the ability to reflect connections between elements, routes, and so on. Those. as detailed as possible.
At the same time, I would like to get a cross-platform tool (well, or only for Linux).
As an option, a UML diagram is considered, but all this is seen as some kind of bicycle.
What other options might there be?

Answer 1

You can use Dia
http://projects.gnome.org/dia/

Answer 2

May help)
www.gliffy.com/

Answer 3

You can also try draw.io , there are different ready-made icons for designating objects. By the way, there are also CISCO-vskie.