Ethereal-users: RE: [Ethereal-users] How to block Ethereal from monitoring my LAN traffic

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From: Matt Bell <matt.bell@xxxxxxxxxxxxx>
Date: Tue, 15 Jun 2004 10:56:29 -0500
Title: RE: [Ethereal-users] How to block Ethereal from monitoring my LANtraffic

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Give these a try: (I have never used them myself, but worth a shot.)

http://ntsecurity.nu/toolbox/promiscdetect/
http://www.securityfocus.com/tools/1039


Got spare cash?
http://www.securityfriday.com/products/promiscan.html
Or at one time L0pht had a product called "antisniff", but I am sure it cost $$$$ now that they bedded up with @Stake.

Lock down the permissions to make it difficult for them... I would also sneak in a software audit on them.

Cheers!
mb


- -----Original Message-----
From: Keith W. Hare [mailto:Keith@xxxxxxx]
Sent: Tuesday, June 15, 2004 10:42 AM
To: sim@xxxxxxxxxxx; Ethereal user support
Subject: RE: [Ethereal-users] How to block Ethereal from monitoring my LANtraffic

There is really no way (that I know of) to detect if a device is listening to the network in promiscuous mode.

If users have sufficient control of their machines to set the network port to promiscuous mode, then:

  If they are connected to the network using hubs, there is no way to stop them
  from listening to traffic.

  If they are connected to the network using switches, and they do not have the capability
  of setting the switch to pass all traffic to their switch port, they will only be able
  to capture their own network traffic.

Keith Hare



- -----Original Message-----
From: Sim Kok Eng [mailto:smsb7@xxxxxxxxxxxx]
Sent: Monday, June 14, 2004 9:09 PM
To: ethereal-users@xxxxxxxxxxxx
Subject: [Ethereal-users] How to block Ethereal from monitoring my LANtraffic


Hello, ethereal-users,

If I have suspected that someone in my LAN has installed Ethereal on
his/her PC. How do I block Ethereal from monitoring my LAN traffic?
Thank you.

Best regards.

Sim Kok Eng
sim@xxxxxxxxxxx
2004-06-15


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