program to communicate directly with ethernet

sabby · 12-17-2002, 06:57 PM

hi all

i need to write a program in C which communicated directly with the ethernet layer. it recieves packets from the ethernet layer, checks there headers, and based upon header information send it to the appropriate application running above it. is it possible to do such a thing?
can we communicate directly with the ethernet layer and bypass the other protocol layers?

sabby

no2nt · 12-17-2002, 09:43 PM

You might want to look at libpcap and winpcap (depending on platform) libraries. I've used them in sniffer and custom protocol apps.

Mik · 12-18-2002, 04:31 AM

If you don't want to use the library you might want to look at PF_PACKET. 'man 7 packet' for more info.

sabby · 12-18-2002, 11:36 AM

thanks guys

i will look over your suggestions. help me out more if u get more ideas

thanks

sabby

sabby · 12-18-2002, 11:37 AM

i should mention that i plan to do it in linux