Snort mailing list archives

Re: home_net/external_net problem


From: Jack Pepper <pepperjack () afferentsecurity com>
Date: Wed, 02 Sep 2009 13:28:36 -0500

This is a known issue:

   "external_net cannot be a proper subset of home_net and vice versa."

It's not broke, it's just that when you get down into some of the more  
complex rules, you end up creating crazy logic anomalies when negating  
nested ranges.

You could do it like this:
Home_net  [10.10.10.0/24,10.10.11.0/24 ... etc ]

Or some variant of that idea.


jp


Quoting "Jefferson, Shawn" <Shawn.Jefferson () bcferries com>:

Hi,

I have a problem with defining my networks in snort.conf.

My home net is 10.10.0.0/13, but I want to set 10.10.22.0/24 as  
external since it is a VPN assigned range.

I can't figure out how to easily specify the ranges in home_net and  
external_net to do this.

--
Shawn Jefferson







-- 

Framework?  I don't need no stinking framework!

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