Hello
I'm working in my final project, it's:
MEASURING ROUND TRIP TIMES TO DETERMINE THE DISTANCE BETWEEN WLAN NODES
It's very very important for me knows the time at which the packets arrive
at the wlan card.
Now, I have this problem.
For example, sometimes the ICMP request is timestamped later than the ICMP
reply.
Do you know how i can resolve this problem?
I'm using Windows XP Home and toshiba m70-155 lap top.
Maybe is better use other OS? For example WindowsXP Professional.
From: Guy Harris <gharris@xxxxxxxxx>
Reply-To: Ethereal user support <ethereal-users@xxxxxxxxxxxx>
To: Ethereal user support <ethereal-users@xxxxxxxxxxxx>
Subject: Re: [Ethereal-users] Frames and timestamps
Date: Wed, 29 Mar 2006 00:34:56 -0800
David L�pez P�rez wrote:
Why the frames and the timetamps aren't in the same order?
For example, in this figure:
Why the frame 38 is before in time than the frame 39?
-- frame 38 --> 4.781393s
-- frame 39 --> 4.781360s
Because some OSes apparently have the annoying habit of not delivering
packets to the mechanism used by libpcap in the order in which they're
time-stamped (note that the time at which a packet is time-stamped could be
different from the time at which it arrived at the host's network adapter).
(Is this Linux? Is it on a multiprocessor machine?)
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