Create a new theme with cisco icons

First – go to https://www.cisco.com/c/en/us/about/brand-center/network-topology-icons.html

Download the PMS 3015 JPG icons. Unzip the file you download into an empty directory

From the top menu, select View – Gallery

At the top of the Gallery window that just appeared – click New Theme

In the General Tab – give it a name (dont click ok yet!) – then select the Files tab – select the directory that contains the contents of the zip file

Click “Add All”

Now click “OK”

Done!

You may also want to go to https://www.vrt.com.au/downloads/vrt-network-equipment and at the bottom of the page download their Network Equipment theme for LibreOffice