RE: [WinPcap-users] What is PROMISCOUS mode?

[Steighton_Haley]

The short answer is that a network card normally only accept and process unicast packets whose source or destination MAC address matches its own.  A NIC in promiscuous mode will accept and process all packets regardless of intended destination.   So, for example, it is critical that the NIC in a packet analyzer be put into promiscuous mode, otherwise the only packets it will be able to analyze will be broadcast packets, and unicast packets directed at the analyzer itself.   I hope that helps.   SLH.   --- Steighton Haley                          [EMAIL PROTECTED] "There are 10 types of people in this world, those who understand binary, and those who don't." -----Original Message----- From: Daniel Frimerman [mailto:[EMAIL PROTECTED] Sent: Monday, June 30, 2003 8:57 AM To: [EMAIL PROTECTED] Subject: [WinPcap-users] What is PROMISCOUS mode? Can anyone please explain to me what does promiscous mode mean?   Daniel