Wireshark · Wireshark-users: Re: [Wireshark-users] Secured way of using Wireshark

[Martin Visser <martinvisser99@xxxxxxxxx>]

Nag.,

I think Guy has pretty much filled you in on the Remote Capture interface. The reality is that if your users do have admin rights to a machine then they can do pretty much anything they like. While you could make the Remote Packet Capture Service only runnable by certain users, you would need to make sure that no user can "trump" those change with Admin rights. 

(And of course you allow users to physical have access to machines (and don't lock down the BIOS, USB ports, etc), they can pretty much boot up anything they like. 

Usually many such security issues are better solved through human security controls (telling people to not do the wrong thing if they want to keep their job) then onerous technical measures. 

Regards, Martin

MartinVisser99@xxxxxxxxx

On Wed, Jun 16, 2010 at 3:01 PM, Maynard, Chris <Christopher.Maynard@xxxxxxxxx> wrote:

I was confused by the question too, but if I focus only on the question asked, namely, "Is there a way to capture packets from/to a selected list of IP address on a LAN?", then the answer is yes. 

 

First you must set things up so the machine doing the capturing has access to the packets of interest.  This may involve adding a hub, enabling port mirroring on a switch, etc.  See http://wiki.wireshark.org/CaptureSetup for more information.

 

And second, you must use an appropriate capture filter.  For example, if you want to capture all packets sent from/to 2 hosts (assume IP addresses IP1 and IP2), to any other host then you might use the following capture filter to accomplish this: "host IP1 or host IP2".  If you only want to see packets sent between those 2 hosts, then you would use, "host IP1 and host IP2".  See http://wiki.wireshark.org/CaptureFilters for more information on capture filters.

 

Now if you want to "restrict the packet capturing to a set of machines ...", then that's a different problem to solve.

 

- Chris

 

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From: wireshark-users-bounces@xxxxxxxxxxxxx [mailto:wireshark-users-bounces@xxxxxxxxxxxxx] On Behalf Of Martin Visser

Sent: Tuesday, June 15, 2010 8:57 PM

To: Community support list for Wireshark
Subject: Re: [Wireshark-users] Secured way of using Wireshark

Nag,

I'm not sure what you mean by your question. Capturing packets is for the most part passive, in that you are saving packets to a file for viewing. Wireshark does not propagate packets to the rest of the network, no matter how virus laden they are. (Certainly as long as those packets are not specially crafted to maybe exploit a vulnerability in wireshark itself, which while it ihas been done, is very very rarely actually seen in the wild).

Regards, Martin

MartinVisser99@xxxxxxxxx

On Tue, Jun 15, 2010 at 6:55 PM, Nagendrababu Maseedu <Nagendra.Babu.Maseedu@xxxxxxxxxxxxx> wrote:

Hi,

 

Is there a way to capture packets from/to a selected list of IP address on a LAN?

The need is to restrict the packet capturing to a set of machines so that security breach does not happen on other machines on the same network.

 

Please let me know if you have any other mechanism to satisfy this need.

 

 

Kind regards,

Nag.

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