[Wireshark-users] tshark help

2006-11-13 Thread Andrew Watson
Hi, I know nothing about wireshark but I was advised to use it to check my webserver network traffic for a possible fault... the server is not local (it runs centos4) and I (having read a bit) found tshark and thought that that would probably be the way to go (although I could be

Re: [Wireshark-users] tshark help

2006-11-13 Thread Jaap Keuter
Hi, You may be on the right track, unable to see why not from the limited description of your requirements. Still the output you desire is available if you take notice of the comment on the -w option, found in the tshark man page: -w outfile|- Write raw packet data to outfile or to the

[Wireshark-users] How to extract ONLY the info I want from captured data(Ethereal, Windows XP)?

2006-11-13 Thread Sean WANG
Hi, I have a captured data file. How do I extract ONLY the info I am interested for each packet? I want the output file contain only (Source IP, Destination IP, Source Port, Destination Port, Protocol, Received Time). Is there any command of Ethereal that I can use? Or do you have any other

[Wireshark-users] Ethereal - how it reads data from NDIS driver

2006-11-13 Thread Maxim Bakushin
Hi, all. I have a WinXP SP2machine with a NDIS driver installed. Application running on this machine re-assembles VLAN-tagged Ethernet frames and sends them to a router via L2 switch. When I run Ethereal (0.99.0, WinPcap 3.1) on this machine, I can see correct VLAN-tagged

Re: [Wireshark-users] Ethereal - how it reads data from NDIS driver

2006-11-13 Thread LEGO
Are you sure that the monitor port of the switch you use is configured to forward tagged frames? On 11/13/06, Maxim Bakushin [EMAIL PROTECTED] wrote: Hi, all. I have a WinXP SP2 machine with a NDIS driver installed. Application running on this machine re-assembles VLAN-tagged Ethernet

Re: [Wireshark-users] How to extract ONLY the info I want from captured data(Ethereal, Windows XP)?

2006-11-13 Thread Jaap Keuter
Hi, Sure, output as textfile, postprocess with [perl, awk, your favorite]. String together the strength of small powerful tools, instead of putting all in one. Thanx, Jaap On Mon, 13 Nov 2006, Sean WANG wrote: Hi, I have a captured data file. How do I extract ONLY the info I am interested

[Wireshark-users] Capture filter for tcp retransmissions

2006-11-13 Thread Paul Jacobs
I found the display filter for tcp retransmissions but is there a capture filter for this? I am troubleshooting net congestion issues on our citrix server and thought that this might be a good filter to use. I wanted to run wireshark all day but didn't want too deal with loading a huge file.

Re: [Wireshark-users] Capture filter for tcp retransmissions

2006-11-13 Thread Guy Harris
Paul Jacobs wrote: I found the display filter for tcp retransmissions but is there a capture filter for this? No - libpcap's capture filter mechanism doesn't support any form of state kept between packets; each packet is treated independently from previous packets, so it'd be impossible for

Re: [Wireshark-users] help with results

2006-11-13 Thread Sake Blok
On Mon, Nov 13, 2006 at 02:02:44PM -, Andrew Watson wrote: I am a new user to wireshark so know very little... the reason I was advised to try wireshark was due to intremittent problems with my webserver whereby (usually) the first page request fails with an error message (the connection

Re: [Wireshark-users] tshark help

2006-11-13 Thread Guy Harris
Andrew Watson wrote: My questionis how can I output a file that I can then read / inspect? As Jaap Keuter noted, the output of the -w flag isn't a text file, it's a binary file containing raw packet data. Either 1) don't use the -w, just redirect the output, which will produce a

Re: [Wireshark-users] Exporting raw packet data?

2006-11-13 Thread Pete Fraser
At 06:24 PM 11/13/2006, Guy Harris wrote: On Nov 13, 2006, at 5:52 PM, Pete Fraser wrote: I want to export packet data in raw format, so that I end up with a binary file. Raw in what sense? In the sense that it's used in the Analyze-Follow TCP Stream dialogue. That is, binary data; not an

[Wireshark-users] AirPcap

2006-11-13 Thread Jeffrey Ross
Any plans on supporting the AirPcap under linux any time soon? ___ Wireshark-users mailing list Wireshark-users@wireshark.org http://www.wireshark.org/mailman/listinfo/wireshark-users

Re: [Wireshark-users] Exporting raw packet data?

2006-11-13 Thread Small, James
Replies in-line below... I didn't even realize you could do this until I read your question, but here is one way (not sure if this is exactly what you want): Open a capture Narrow down the interesting packets (For example, I do a lot of web traffic analysis so I might use a filter such as

Re: [Wireshark-users] Exporting raw packet data?

2006-11-13 Thread Stephen Fisher
On Mon, Nov 13, 2006 at 11:03:19PM -0500, Small, James wrote: I agree that it would be nice to have something like this for UDP but that means someone would have to write the dissector/re-assembler. Probably not an easy task. Feel free to add this to the wish list at