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Network Applications

Berkeley Packet Monitor

Home Page License:
Shareware; $6

Current Version: 1.5 (July 31, 2007)

Berkeley Packet Monitor is a Mac OS X network traffic monitoring and diagnostic utility. It uses the Berkeley Packet Filter devices built into the Mac OS X operating system to log and re-assemble all packets entering and exiting from a specific network interface. The software can be configured to log ICMP, TCP, and UDP packets and will allow you to view the raw data contained in each packet sent or received. If you like the program or use it frequently you may register your copy for $6 at

Version 1.5 - the first release since December 2005 - adds/changes the following:

  • Added a built-in "Help Book" with IP header informational references.
  • Universal binary.

User Reviews

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Also See . . .

Can't find what you're looking for? Try a search:

Also, if you have an older Mac, be sure to check out the "Classic" applications page for more options.

Finally, take a look at ALEMIA if you think you know that name of an application, but aren't quite sure.

Related Links

For an interesting and objective third-party view of Apple's networking technology - from MacTCP through Open Transport and beywond - Peter Sichel's Sustainable Softworks page is unparalleled.

Also Consider . . .

These are applications that are newer and of potential interest, but which I haven't yet selected for permanent inclusion. Have a look, and let me know if you think they deserve to be part of the permanent collection!