Wireshark Networking and Admin

Wireshark is the world's foremost network protocol analyzer, and is the de facto criterion across many industries and instructive institutions.

Deep inspection of hundreds of protocols, with more being added all the time
Live capture and offline analysis
Standard three-pane packet browser
The most powerful display filters in the industry
Rich VoIP analysis
Live data can be read from Ethernet, IEEE 802.11, PPP/HDLC, ATM, Bluetooth, USB, Token Ring, Frame Relay, FDDI, and others (depending on your platfrom)
Decryption support for many protocols, including IPsec, ISAKMP, Kerberos, SNMPv3, SSL/TLS, WEP, and WPA/WPA2
Read/write many different capture file formats
Capture files compressed with gzip can be decompressed on the fly
Coloring rules can be applied to the packet list for quick, intuitive analysis
Output can be exported to XML, PostScript®, CSV, or plain text
Multi-platform: Runs on Windows, Linux, OS X, Solaris, FreeBSD, NetBSD, and many others
Captured network data can be browsed via a GUI, or via the TTY-mode TShark utility

Wireshark 1.6.1 (32-bit)       click to download

Wireshark 1.6.0 (32-bit)      click to download

Wireshark 1.6.1 (64-bit)     click to download

Wireshark 1.6.0 (64-bit)    click to download