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Re: Detect Network Sniffing
From: Kurt Buff <kurt.buff () gmail com>
Date: Tue, 8 Nov 2011 10:25:08 -0800

On Mon, Nov 7, 2011 at 16:11, Dagni McPhee <dagnimcphee () gmail com> wrote:
Is there any way to detect if a sniffer is being used to analyze my traffic
before it gets onto the Internet? Also is it required for a sniffer to have
an IP address or can it sniff while remaining "uncontactable" on the
network?

What's your environment look like? Are you worried about wired or
wireless, or both? Are your switches protected against ARP cache
flooding attacks? Have you physically secured your switches so that
they can't be used to span/mirror traffic by unauthorized personnel?
Are you using 802.1x to secure your wireless traffic?

Take a look at [at least] the links of the first page of this query:
https://www.google.com/search?q=detect%20promiscuous%20mode%20sniffing


Kurt

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