Snort mailing list archives

frag3_engine policy in heterogeneous env.


From: chris ryan <chris.ryan () gmx de>
Date: Wed, 25 Jun 2008 14:32:34 +0200

Hi,

as far as i understand, the policies "emulate" the target host OS
defragmentation to avoid an evasion of the ids.

For now, we have a very heterogeneous environment and cannot map the
subnets to specific operating systems. In effect, the "bind-to" combined
with "policy xyz" is not applicable.

So, my guess is, i've to use one frag3_engine policy for all the traffic
(with possible evasion side effect to ids). The default engine is "BSD".

Is "BSD" a good choice for such a heterogeneous environment?


Thanks in advance, Chris.

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