Ethereal-users: [Ethereal-users] Dissecting the packet

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From: "Marc" <mcoffie@xxxxxxxxxxx>
Date: Tue, 14 May 2002 10:48:19 -0400
Hi all- I was wondering - is there a better explanation of the (for example):
 
    ether[0] & 1 != 0
 
from the tcpdump man page from ethereal's site?
 
This is what I am trying to do:
 
log every logon to the server using ethereal. I know that registration packets have unique info in them, i am just not familiar in how to specify and search the packet using ethereal. Any suggestions?
 
thanks,
marc coffie