TCP/IP Packet Sniffer

A "Packet Sniffer" is a utility that sniffs without modifying the network's packets in any way.
By comparison, a firewall sees all of a computer's packet traffic as well, but it has the ability to block
and drop any packets that its programming dictates. Packet sniffers merely watch, display,
and log this traffic.

One disturbingly powerful aspect of packet sniffers is their ability to place the hosting
machine's network adapter into "promiscuous mode." Network adapters running in promiscuous
mode receive not only the data directed to the machine hosting the sniffing software,
but also ALL of the traffic on the physically connected local network.

This sniffer is very basic, it allows you to view the TCP & IP headers of the captured packets.