cp icons.svg /usr/share/inkscape/icons/
then open icons.svg by inkscape
/usr/share/inkscape/symbols/https://commons.wikimedia.org/wiki/Category:SVG_network_diagrams
cp icons.svg /usr/share/inkscape/icons/
then open icons.svg by inkscape
/usr/share/inkscape/symbols/https://commons.wikimedia.org/wiki/Category:SVG_network_diagrams