Wireshark · Wireshark-dev: Re: [Wireshark-dev] Capture from multiple remote machines

[Ozan T <ozan.tcn@xxxxxxxxx>]

Thank you.

I will have a look at that.

Thanks,

Ozan.

On Mon, Nov 17, 2014 at 11:38 AM, Roland Knall <rknall@xxxxxxxxx> wrote:

Hi

There exisyts a new interface in Wireshark, called extcap. It is a plugin interface, which allows you to use self-written programs as capture interfaces. So far the interface is only in main, but if you download any 1.9x version, it should be included.

This would allow you to write a program, which acts as a ssh-remote capture tool. Multiple instances of those interfaces may be used together, so you could, in theory, implement your scenario. Synchronizing the captures would be a totally different task altogether.

Documentation is not yet complete for extcap, but there is a basic python demo program in the ./doc folder of the current wireshark source tree.

regards,

Roland

On Mon, Nov 17, 2014 at 1:17 AM, Ozan T <ozan.tcn@xxxxxxxxx> wrote:

Hi all,

I am working in a company that develops network softwares. We often need to capture from multiple servers in order to see if there is a packet loss, blocked packet, or the original packet altered etc. So, everytime we capture from source and destination, then compare captures manually. ( Generally, we are not allowed to access to switch or anything that stays between source and destination )

I have searched a bit but I think it is not possible to capture from multiple machines remotely with wireshark.

We really need this feature/tool ( Also, I discussed with some other people around me, many of them think that this feature may make things easier for them ) . One way or another we will have to develop it. If you think such a feature would be useful in wireshark, we would like to target wireshark rather than a seperate project.

Ofcourse, if this is possible with current wireshark, I would like to learn :) or if there is an ongoing project about that.

I just need an idea what you think about that feature in wireshark project, then we can plan/discuss things according to it.

Basic representation of feature after our initial look :

Connect remote machines via ssh/pipe/rpcap as o now possible for single machine

Capture and merge in real time

Thanks.

Ozan.

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