Ether traffic information

[Jason C Austin]

I'm having trouble finding information about collecting ethernet traffic
information.  The little documentation in the manual pages doesn't come
close to giving enough information.  There is one manual page under
``ether'' that looks like what I need, but it doesn't go into any details
on using the C routines.  Is there anyone out there has done this and can
help me decipher how to use these?  I'm mainly interested in finding
packet quantity coming from a list of individual hosts.