Wireshark-dev: Re: [Wireshark-dev] why there is no frame check sequence field in ethernet frame
From: Jeff Morriss <jeff.morriss.ws@xxxxxxxxx>
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.