Cisco Packet Tracer

Cisco Packet Tracer screenshots

Packet Tracer is a networking simulation software made by Cisco
Main Window
Cisco Packet Tracer 5.1 : Main Window

Alternative downloads

The Tracer
Combines different networking tools in a single software program.
2017.7
FREE
Colasoft Packet Player
Open captured packet trace files and play them back in the network.
2.3
The Tracer beta 1 - build 1-30
The Tracer shows information about single hops and geographical locations.
0.2
FREE