Wireshark-users: Re: [Wireshark-users] The capture file appears to be damaged or corrupt. (pcap:
Here is one of the files that loads and tells me the file is corrupt.
-----Original Message-----
From: wireshark-users-bounces@xxxxxxxxxxxxx [mailto:wireshark-users-bounces@xxxxxxxxxxxxx] On Behalf Of Joseph Laibach
Sent: Friday, May 14, 2010 3:32 PM
To: Community support list for Wireshark
Subject: Re: [Wireshark-users] The capture file appears to be damaged or corrupt. (pcap: Files has 109736-byte packet, bigger than maximum of 65535)
So I made the changes and once the network traffic starts picking up I get corrupted files again. Traffic is about 60MBit/sec.
Here is the command I'm running now:
C:\"Program Files"\Wireshark\dumpcap.exe -i \Device\NPF_{21741AFC-E45E-46A6-9740-9E233E4FF91D} -w d:\SFTI_capture -b files:20000 -b filesize:8192 -B 256
Thanks again
Joe
-----Original Message-----
From: wireshark-users-bounces@xxxxxxxxxxxxx [mailto:wireshark-users-bounces@xxxxxxxxxxxxx] On Behalf Of Joseph Laibach
Sent: Friday, May 14, 2010 11:47 AM
To: Community support list for Wireshark
Subject: Re: [Wireshark-users] The capture file appears to be damaged or corrupt. (pcap: Files has 109736-byte packet, bigger than maximum of 65535)
Thanks for catching it. I should be using the -b filesize:8192 instead. I'll make the changes and see what happens.
Thanks
Joe
-----Original Message-----
From: wireshark-users-bounces@xxxxxxxxxxxxx [mailto:wireshark-users-bounces@xxxxxxxxxxxxx] On Behalf Of Sake Blok
Sent: Friday, May 14, 2010 11:36 AM
To: Community support list for Wireshark
Subject: Re: [Wireshark-users] The capture file appears to be damaged or corrupt. (pcap: Files has 109736-byte packet, bigger than maximum of 65535)
Hmmm... reading back all the mails I see that you use:
dumpcap ... -b files:10000 -a filesize:8192 ...
Why are you mixing -b and -a options? "-a" options are for automatic finishing the capturing and "-b" options are for creating a ringbuffer. Which of the two were you planning to use?
If sticking to one of these two options does not solve the issue, are you able to share a file that is giving the error?
Cheers,
Sake
On 14 mei 2010, at 17:11, Joseph Laibach wrote:
> I open the file on the host that is was captured on, or I copy it via a Windows file share. Either way it gives me the same error. I'm capturing stock Market multicast data, if that matters. The traffic is very bursty and the data rate is around 200mb/sec. I switched from a Broadcom NIC to Intel NIC to see if that would help but no luck on that change either.
>
> -----Original Message-----
> From: wireshark-users-bounces@xxxxxxxxxxxxx [mailto:wireshark-users-bounces@xxxxxxxxxxxxx] On Behalf Of Sake Blok
> Sent: Friday, May 14, 2010 10:49 AM
> To: Community support list for Wireshark
> Subject: Re: [Wireshark-users] The capture file appears to be damaged or corrupt. (pcap: Files has 109736-byte packet, bigger than maximum of 65535)
>
> Did you open the file on the host on which it was captured? Or did you transfer the file from the capturing host to the host on which you try to read it? The error message that you get usually appears after the file has been transferred to another host with FTP in ASCII mode instead of BINARY mode.
>
> (FYI dumpcap writes libpcap based files which can not contain packets larger than 65535 bytes, so the file is most probably corrupted somehow)
>
> Cheers,
> Sake
>
> On 14 mei 2010, at 16:36, Joseph Laibach wrote:
>
>> Is there a way to remove the 65535 maximum from the reading of a capture?
>>
>> Thanks
>>
>> Joe
>>
>> -----Original Message-----
>> From: wireshark-users-bounces@xxxxxxxxxxxxx [mailto:wireshark-users-bounces@xxxxxxxxxxxxx] On Behalf Of Joseph Laibach
>> Sent: Tuesday, May 11, 2010 11:36 AM
>> To: Community support list for Wireshark
>> Subject: Re: [Wireshark-users] The capture file appears to be damaged or corrupt. (pcap: Files has 109736-byte packet, bigger than maximum of 65535)
>>
>> I'm running version 1.2.7 64bit.
>>
>> -----Original Message-----
>> From: wireshark-users-bounces@xxxxxxxxxxxxx [mailto:wireshark-users-bounces@xxxxxxxxxxxxx] On Behalf Of Jaap Keuter
>> Sent: Tuesday, May 11, 2010 11:29 AM
>> To: Community support list for Wireshark
>> Subject: Re: [Wireshark-users] The capture file appears to be damaged or corrupt. (pcap: Files has 109736-byte packet, bigger than maximum of 65535)
>>
>> But what release of Wireshark are you using?
>>
>> Thanks,
>> Jaap
>>
>> Send from my iPhone
>>
>> On 11 mei 2010, at 16:37, Joseph Laibach <jlaibach@xxxxxxxxxxxxx> wrote:
>>
>>> I am having an issue with some of the capture files. Some captures
>>> files spit back an error that the capture file appears to be damaged
>>> or corrupt. The capture is running on a Windows 2003 Sever R2 64bit,
>>> with 2 gigs of memory and a Inetl Xeon 2.33ghz processor.
>>>
>>>
>>>
>>> I am capturing with dumpcap. The syntax I am using is as follows: C:
>>> \"Program Files"\Wireshark\dumpcap.exe -i \Device\NPF_
>>> {ECC9D35A-826A-4A4F-B634-656EAD4EC7C9} -w d:\SFTI_capture -b files:
>>> 10000 -a filesize:8192 -B 128 -s 10000000
>>>
>>>
>>>
>>> I added the -s 10000000 to try and fix the large byte packet issue b
>>> ut that hasn't worked.
>>>
>>>
>>>
>>> Anyone have any suggestions on how to eliminated the corruption of
>>> capture files?
>>>
>>>
>>>
>>> Thanks
>>>
>>>
>>>
>>> Joe Laibach
>>>
>>>
>>>
>>>
>>> This communication is for informational purposes only. It is not
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