[Winpcap-users] Statistical mode help
pro2c
pro2c at litrca.com
Mon Apr 12 13:30:43 PDT 2010
Boaz: it needs .Net 3.5
Thank you anyway
_____
From: winpcap-users-bounces at winpcap.org
[mailto:winpcap-users-bounces at winpcap.org] On Behalf Of Boaz Brickner
Sent: Monday, April 12, 2010 10:23 PM
To: winpcap-users at winpcap.org
Subject: Re: [Winpcap-users] Statistical mode help
Have you tried Pcap.Net?
http://pcapdotnet.codeplex.com
Boaz.
On Mon, Apr 12, 2010 at 23:06, pro2c <pro2c at litrca.com> wrote:
No, I didn't write the wrapper. But this is the only one for .NET 2.0
(sharppcap) :-(
_____
From: winpcap-users-bounces at winpcap.org
[mailto:winpcap-users-bounces at winpcap.org] On Behalf Of Gianluca Varenni
Sent: Monday, April 12, 2010 9:50 PM
To: winpcap-users at winpcap.org
Subject: Re: [Winpcap-users] Statistical mode help
The reason is probably in the .NET wrapper itself, then. Opening around 100
pcap instances is something that I've never tried, but it might definitely
impact the overall system performance.
If you have written the .NET wrapper yourself, I would look into optimizing
its code.
Have a nice day
GV
From: pro2c <mailto:pro2c at litrca.com>
Sent: Monday, April 12, 2010 12:40 PM
To: winpcap-users at winpcap.org
Subject: Re: [Winpcap-users] Statistical mode help
I'm doing this in VB.NET 2005 (.NET 2.0) and with 1,5Mbyte/sec (~3000
packets/sec) the cpu load is very high.
_____
From: winpcap-users-bounces at winpcap.org
[mailto:winpcap-users-bounces at winpcap.org] On Behalf Of Gianluca Varenni
Sent: Monday, April 12, 2010 9:31 PM
To: winpcap-users at winpcap.org
Subject: Re: [Winpcap-users] Statistical mode help
Then you should definitely be able to process that amount of packets with a
simple user mode application that sorts the packets by TCP port.
Have a nice day
GV
From: pro2c <mailto:pro2c at litrca.com>
Sent: Monday, April 12, 2010 12:15 PM
To: winpcap-users at winpcap.org
Subject: Re: [Winpcap-users] Statistical mode help
Not much. Traffic of an average computer... about 15Mbit down and 15 up
_____
From: winpcap-users-bounces at winpcap.org
[mailto:winpcap-users-bounces at winpcap.org] On Behalf Of Gianluca Varenni
Sent: Monday, April 12, 2010 9:02 PM
To: winpcap-users at winpcap.org
Subject: Re: [Winpcap-users] Statistical mode help
How much traffic are we talking about?
Have a nice day
GV
From: pro2c <mailto:pro2c at litrca.com>
Sent: Monday, April 12, 2010 11:55 AM
To: winpcap-users at winpcap.org
Subject: Re: [Winpcap-users] Statistical mode help
I already did this (capture all packets and sorted them on their ports) but
it was too slow when downloading at full speed. So I turned to statistics as
I only need the bytes up/down per port.
There are about 100 active ports on average, so 100 instances would be
neccessary...
_____
From: winpcap-users-bounces at winpcap.org
[mailto:winpcap-users-bounces at winpcap.org] On Behalf Of Gianluca Varenni
Sent: Monday, April 12, 2010 8:50 PM
To: winpcap-users at winpcap.org
Subject: Re: [Winpcap-users] Statistical mode help
It depends on the number of instances. For sure I wouldn't open 64k
instances to monitor all the ports. I would capture all the packets (i.e. no
statistics mode) and write my own code to disssect the packets and compute
the statistics.
GV
From: pro2c <mailto:pro2c at litrca.com>
Sent: Monday, April 12, 2010 11:42 AM
To: winpcap-users at winpcap.org
Subject: Re: [Winpcap-users] Statistical mode help
Thank you for your reply!
One more question: are several instances heavy on the cpu?...can I monitor
all the computer's ports without stressing the cpu too much?
_____
From: winpcap-users-bounces at winpcap.org
[mailto:winpcap-users-bounces at winpcap.org] On Behalf Of Gianluca Varenni
Sent: Monday, April 12, 2010 8:37 PM
To: winpcap-users at winpcap.org
Subject: Re: [Winpcap-users] Statistical mode help
you need to use several instances.
Have a nice day
GV
From: pro2c <mailto:pro2c at litrca.com>
Sent: Monday, April 12, 2010 11:24 AM
To: winpcap-users at winpcap.org
Subject: [Winpcap-users] Statistical mode help
Hello
I've set the stats filter to monitor several tcp ports. I recieve only the
data for all these ports together and I wish to be able to get the
individual data for each port. Is this possible with 1 instance or do I have
to create one instance of winpcap for every port?
Thanx
Michael
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