Ethereal is the world's most popular network protocol analyzer. It is used for troubleshooting, analysis, development, and education.

Three security vulnerabilities have been fixed since the previous release. See the application advisory for more details. The H.248 dissector could crash. Versions affected: 0.10.14. The UMA dissector could go into an infinite loop. Versions affected: ???. Win32: Unicode characters in the users profile path causes problems reading/writing the preferences (and alike) files. Versions affected: 0.10.14. Win32: Unicode characters in filenames given to the Ethereal command line doesn't work (used e.g. when "double-clicking" in explorer). Versions affected: 0.10.14.

The following features are new (or have been significantly updated) since the last release: Win32: Catch hardware exceptions caused by buggy dissectors. If e.g. a NULL pointer exceptions occurs, Ethereal won't crash now but displays the exception and tries to continue decoding packets.

Download ethereal-setup-&EtherealCurrentVersion;.exe from the Windows download area on the main web site. Double-click the installer executable.

Download the appropriate package from the Solaris download area on the main web site. Uncompress the package using bzip2, and install it using pkgadd.

Download ethereal-&EtherealCurrentVersion;.tar.gz from the main download area on the web site. Extract the package using tar and gzip. Run "configure ; make ; make install".

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

Ethereal and Tethereal 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.

On Windows systems the packet list scroll bar can sometimes disappear or become unusable. Until the problem is fixed you can work around it by resizing the packet list or the main window. (Bug #220)

Community support is available on the ethereal-users mailing list. Subscription information and archives for all of Ethereal's mailing lists can be found on the web site. There is also an IRC channel dedicated to Ethereal. Commercial support, training, and development services are available from Ethereal Software.

A complete FAQ is available on the Ethereal web site.