Snort - the de facto standard for intrusion detection/prevention
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3.7 My IP address is assigned dynamically to my interface, can I use Snort with it?

Yes. With Snort 1.7 and later, $<$interface$>$_ADDRESS variable is available. The value of this variable will be always set to IP address/Netmask of the interface which you run snort at. if interface goes down and up again (and an IP address is reassigned) you will have to restart snort. For earlier versions of snort numerous scripts to achieve the same result are available.



Nigel Houghton 2006-10-02