Re: snort rate filtering

[Russ Combs <rcombs () sourcefire com>]

On Tue, Nov 13, 2012 at 11:20 PM, amin Salehi <seyedamin_salehi () yahoo com>wrote:

> hi.i have a rule in local.rules file:
> "alert icmp 10.10.7.2 any -> 10.10.8.2 any (msg:"ping probe";sid:1000001;)"
> i add in snort.conf following command:
> rate_filter gen_id 1, sig_id 1000001, track by_src, count 5, seconds 10,
> new_action drop, timeout 15
> this mean that if this match occur 5 time in 10 second for 15 second drop
> the packet.but when the match reach this threshold all packet will be
> dropped not for 15 second.all packet after this threshold will be drop.what
> is the problem?
>
> rate_filter won't revert until the rate of events drops below the
configured threshold.

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