Install etherape by entering the following commands in the terminal:
sudo apt update sudo apt install etherape
Description:
graphical network monitor
EtherApe is a graphical network monitor modeled after etherman. it displays network activity graphically, showing active hosts as circles of varying size, and traffic among them as lines of varying width. . It features link layer, ip and TCP modes, color-color coded protocols display, Ethernet, FDDI, Token Ring, ISDN, PPP and SLIP devices. It can filter traffic to be shown, and can read traffic from a file as well as live from the network.
Homepage: http://etherape.sourceforge.net
Version: 0.9.16-1
Section: universe/gnome