Security Basics mailing list archives

Re: Sniffing


From: Devilscrow Sr <devilscrow () gawab com>
Date: Tue, 16 Dec 2003 02:13:42 +0530

Hi,

Comments inline.....

Shah H (Comp) wrote:

1) On a Switched Network can Sniffers capture Network Traffic only for
the switch it is connected to switch or for all the switches on the
network?
Yes you can capture traffic on your switch, but if you use conventional sniffers then you would receive only what is sent to you, unless you are using technologies like span / port mirror etc. The other way to sniff on your switch would be to use tools like dsniff / ettercap etc. These tools use cache poisoning techniques to get their way thru. To read more .... google is you friend.

2) Can Sniffing be detected using a Network Intrusion Detection System
and if yes then are there any Sniffing ways which are not detected by
NDIS?
Yes sinffing can be detected. Well evading detection would mean sniffing with your adapter running normally (!= promiscuous)

-dev

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