Hi, In the MAC layer (i.e. ethernet layer for 802.3 networks) does any one know how the trailing checksum is calculated? Thanks and regards, Rajat. http://rajatswarup.blogspot.com/ -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/