[Winpcap-announce] WinPcap 4.1 beta has been released

Gianluca Varenni gianluca.varenni at cacetech.com
Tue Jul 3 20:44:58 GMT 2007

As of today, WinPcap 4.1 beta is available in the download section of 
the WinPcap website, http://www.winpcap.org/install/ .
This software release contains some important security bug fixes to 
the kernel driver, as well as the update of libpcap to the 0.9.6 
Also, it includes some major experimental fixes to the filter compiler
to improve filtering over 802.11 networks. 
Finally this new version includes support for the Per Packet Info 
(PPI) encapsulation that will be available in the upcoming version of 
Full details can be found in the change log attached at the end of 
this message. 

Being a beta release, as usual we encourage people to test it and 
report any anomaly or strange behavior to the WinPcap mailing lists. 

Gianluca Varenni
WinPcap Team

Changelog from WinPcap 4.0.1

- Added support for the Per Packet Info (PPI) link type.
- wpcap.dll has been updated to the libpcap 0.9.6 branch from 
- Bug fixing:
  + Fixed a bug in pcap_open_live() by which we were silently ignoring
    a failure when switching into promiscuous mode. This fix solves 
    the outstanding issue of wireless cards that fail to go into 
    promiscuous mode and do not capture any packet. 
  + Experimental fixes to the BPF compiler (pcap_compile()) to better 
    support filters over 802.11. 
  + Minor fixes to remove several PFD (PreFAST for Drivers) warnings. 
  + (from libpcap 0.9.6) added additional filter operations for 802.11
    frame types 
  + (from libpcap 0.9.6) fixes to discard unread packets when changing

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