Wireshark-dev: Re: [Wireshark-dev] why there is no frame check sequence field in ethernet frame
From: Jeff Morriss <[email protected]>
Date: Thu, 08 Nov 2007 14:08:20 -0500

zhou rui wrote:
hi all
seems it is very confused that
there is no "frame check sequence"field in the ethernet frame captured by wireshark,while the other sniffer has that
Because most hardware (NICs) don't provide the checksum to the capturing 
engine.  Specialized (sniffer) hardware typically does since, well, it's 
whole purpose in life is capturing.