Although it's nice to use a tool such as Ethereal (Which is having monopoly in Sniffing), other sniffing tools are available n seriously i do suggest u to go for these raher than ethereal. they are Easy to use and having a very handy user interface. Packetyzer and Etherpeek are general sniffing tools, although others such as Dsniff allow the attacker to focus on one specific type of traffic. A few of these tools are highlighted here:
Packetyzer Provides a Windows user interface for Ethereal. Available free from http://www.networkchemistry.com/products...tyzer.php.
Etherpeek A commercial sniffer that offers a GUI interface and is used on the Windows platform. It is available at http://www.etherpeek.com
Dsniff Part of a collection of tools for network auditing and hacking. Includes dsniff, filesnarf, mailsnarf, msgsnarf, urlsnarf, and webspy. These tools allow the attacker to passively monitor a network for interesting data such as passwords, email, files, and web traffic. The Windows port is available at http://www.datanerds.net/~mike/dsniff.html.
TCPdump One of the most used network sniffer/analyzers for Linux. TCPdump is a command-line tool that is great for displaying header information. TCPdump is available at http://www.tcpdump.org
Windump A porting to the Windows platform of tcpdump, the most used network sniffer/analyzer for UNIX. This tool is similar to TCPdump in that it is a command-line tool that easily displays packet header information. It's available at http://www.winpcap.org/windump...........