Wireshark-users: Re: [Wireshark-users] Memory question

From: M K <gedropi@xxxxxxxxx>
Date: Thu, 25 Mar 2010 07:32:49 -0800
If you repeat a capture are the malformed packets always in the same
place? Or is there any sameness between the malformed packets from
previously to the malformed packets currently?

On 3/25/10, János Löbb <janos.lobb@xxxxxxxx> wrote:
> Yes, I am, otherwise I cannot capture all the traffic on the switch- I
> might be wrong.  Something is causing malformed packets, but not
> regularly, so my thought is to use brute force and capture a whole day
> of traffic.  The hard drive would be able to hold it :-)
>
> Thanks ahead,
>
> János
> On Mar 25, 2010, at 11:23 AM, M K wrote:
>
>> Are you in promiscuous mode?  That consumes more.
>>
>> On 3/25/10, János Löbb <janos.lobb@xxxxxxxx> wrote:
>>> Hi,
>>>
>>> I thought that when I dedicate a file for the capture, the program
>>> will not run out of memory, but rather from time to time writes the
>>> captured data to this file.  Yesterday I tried to capture as much
>>> as I
>>> could on a PC with windows XP SP3 on it using WireShark 1.2.6 but
>>> after some 20 minutes the program stopped and told it is out of
>>> memory.  The data was in the file, but even after restarting the PC I
>>> was unable to open it.  WireShark again posted an out of memory
>>> message.  Looks to me that Wireshark wants to read all the content
>>> into real memory and it fails.  The size of the file is 321.9MB.  The
>>> machine is a 1.4Ghz Pentium 4 with 384MB of RAM
>>>
>>> Is there any setting I can change to be able to open the file and
>>> work
>>> with it ?  How folks are doing lengthier captures, like multiple
>>> hours ?
>>>
>>> Thanks ahead,
>>>
>>> János
>>>
>>>
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>>
>>
>> --
>> All that is necessary for evil to succeed is that good men do nothing.
>>
>>              ~Edmund Burke
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-- 
All that is necessary for evil to succeed is that good men do nothing.

              ~Edmund Burke