IDS: SourceFire RNA

[Lior Tal <lior () us-path com>]

Hi,
Did anyone had a chance to evaluate the RNA published on SourceFire web site?
> From what I coule understand, they claim that by passive traffic analysis the RNA can trace every network device, 
> service and open port within a network. It is difficult for me to understand how can passive traffic analysis detect 
> inactive devices and services which do not transmit any network traffic?
Can anyone help figure that one?
Lior
US-Path Inc.

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