Wireshark

Wireshark (also known as Ethereal) is a network protocol analyzer that enables you to capture and examine data from a live network or from a capture file on disk. You can interactively browse the capture data and view summary and detail information for each packet. Wireshark has several powerful features, including a rich display filter language and the ability to view the reconstructed stream of a TCP session. It can read capture files from tcpdump (libpcap), NAI Sniffer (compressed and uncompressed), Sniffer Pro, NetXray, snoop, Shomiti Surveyor, AIX s iptrace, Microsoft Network Monitor, Novell s LANalyzer, RADCOM s WAN/LAN Analyzer, HP-UX nettl, ISDN4BSD, Cisco Secure IDS iplog, the pppd log (pppdump-format), and the AG Group s/Wildpacket Etherpeek. It can also read traces made from Lucent/Ascend WAN routers and Toshiba ISDN routers. Any of these files can be compressed with gzip and Wireshark will decompress them on the fly.

http://www.wireshark.org/

Wireshark 1.2.5

What's New
Bug Fixes

The following vulnerabilities have been fixed. See the security advisory for details and a workaround.

The Daintree SNA file parser could overflow a buffer. (Bug 4294)

Versions affected: 1.2.0 to 1.2.4

The SMB and SMB2 dissectors could crash. (Bug 4301)

Versions affected: 0.9.0 to 1.2.4

The IPMI dissector could crash on Windows. (Bug 4319)

Versions affected: 1.2.0 to 1.2.4


The following bugs have been fixed:

Wireshark does not graph rtp streams. (Bug 3801)

Wireshark showing extraneous data in a TCP stream. (Bug 3955)

Wrong decoding of gtp.target identification. (Bug 3974)

TTE dissector bug. (Bug 4247)

Upper case in Lua pref symbol causes Wireshark to crash. (Bug 4255)

OpenBSD 4.5 build fails at epan/dissectors/packet-rpcap.c. (Bug 4258)

Incorrect display of stream data using "Follow tcp stream" option. (Bug 4288)

Custom RADIUS dictionary can cause a crash. (Bug 4316)

New and Updated Features

There are no new features in this release.
New Protocol Support

There are no new protocols in this release.
Updated Protocol Support

DAP, eDonkey, GTP, IPMI, MIP, RADIUS, RANAP, SMB, SMB2, TCP, TTE, VNC, X.509sat
Updated Capture File Support

Daintree SNA.
Getting Wireshark

Wireshark source code and installation packages are available from http://www.wireshark.org/download.html.
Vendor-supplied Packages

Most Linux and Unix vendors supply their own Wireshark packages. You can usually install or upgrade Wireshark using the package management system specific to that platform. A list of third-party packages can be found on the download page on the Wireshark web site.
File Locations

Wireshark and TShark look in several different locations for preference files, plugins, SNMP MIBS, and RADIUS dictionaries. These locations vary from platform to platform. You can use About->Folders to find the default locations on your system.
Known Problems

Wireshark may appear offscreen on multi-monitor Windows systems. (Bug 553)

Wireshark might make your system disassociate from a wireless network on OS X. (Bug 1315)

Dumpcap might not quit if Wireshark or TShark crashes. (Bug 1419)

The BER dissector might infinitely loop. (Bug 1516)

Wireshark can't dynamically update the packet list. This means that host name resolutions above a certain response time threshold won't show up in the packet list. (Bug 1605)

Capture filters aren't applied when capturing from named pipes. (Bug 1814)

Wireshark might freeze when reading from a pipe. (Bug 2082)

Filtering tshark captures with display filters (-R) no longer works. (Bug 2234)

The 64-bit Windows installer does not ship with the same libraries as the 32-bit installer. (Bug 3610)

http://www.wireshark.org/download.html

Wireshark 1.2.6

# The following bugs have been fixed:

* Wireshark could crash while decrypting Kerberos data.
* Address display filters hang Wireshark. (Bug 658)
* PSML - structure context node missing. (Bug 1564)
* Wireshark doesn't dynamically update the packet list. (Bug 1605)
* LUA: There's no tvb_get_stringz() equivalent. (Bug 2244)
* tvb_new_real_data is prone to memory leak. (Bug 3917)
* Malformed OPC UA traffic makes Wireshark "freeze". (Bug 3986)
* Analyze?Expert... doesn't show IP "Bad Checksum" errors. (Bug 4177)
* Wireshark can't decrypt WPA(2)-PSK when passphrase is 63 bytes. (Bug 4183)
* RTP stream analysis: Wrong jitter values after clicking the refresh button. (Bug 4340)
* Wireshark decodes bootp option 2 incorrectly. (Bug 4342)
* Deleting SMI modules causes Wireshark to crash. (Bug 4354)
* Wireshark decodes kerberos AS-REQ PADATA incorrect. (Bug 4363)
* PDML output from TShark includes invalid characters. (Bug 4402)
* Empty GPRS LLC S frames cause truncated data exception. (Bug 4417)

# New and Updated Features

* Feature parity between the 64- and 32-bit Windows installer has been improved. The 64-bit installer now supports the "matches" operator, GeoIP location, and most types of decryption. Kerberos decryption and OID resolution are still not supported.

# Updated Protocol Support

* BJNP, BOOTP/DHCP, DHCPv6, FIP, GPRS LLC, IEEE 802.11, IP, Kerberos, OPCUA, SCTP, SSL, ZRTP

http://www.wireshark.org/download.html