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

["Lampkin, Brad" <brad.lampkin@xxxxxxx>]

	You are correct. Only its own traffic, but don't forget about
broadcasts! If a switch is involved, broadcasts from other machines on the
same network/vlan/subnet still come across all ports but the one it came in
on.

Brad Lampkin

-----Original Message-----
From: ethereal-users-bounces@xxxxxxxxxxxx
[mailto:ethereal-users-bounces@xxxxxxxxxxxx] On Behalf Of Keith W. Hare
Sent: Tuesday, June 15, 2004 11:42 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


_______________________________________________
Ethereal-users mailing list
Ethereal-users@xxxxxxxxxxxx
http://www.ethereal.com/mailman/listinfo/ethereal-users

_______________________________________________
Ethereal-users mailing list
Ethereal-users@xxxxxxxxxxxx
http://www.ethereal.com/mailman/listinfo/ethereal-users