Ethereal

Those who do not know about this type of application, Ether is a sniffer, an application that can interpret all the packets sent through the network and see what works being done on the network.

Ethyl is a packet analyzer that can be completely recommended for professionals, because it displays all sort of information. You can capture data on both the network, and a disk capture, because it supports 20 different formats and 300 protocols.

Using a system to view ethernet information, and carrying a completely different and incompatible system captive (tcpdump).

Once Capture Parameters are established, Program 3 will show the results of information. Once done, you can access a list of all the capac pack packets, the relevant information and the ports that were used.