[Snort-users] Queries regarding FRAG3 & STREAM5

Hui Cao hcao at ...1935...
Tue Nov 12 09:59:02 EST 2013


We haven't updated these configurations for Frag3 and Stream5. If we
verified those configurations on these latest windows system, the
documents will be updated too. In term of timeline, we don't have a
firm date yet.

Best,
Hui.

On Thu, Nov 7, 2013 at 3:23 AM, Anshuman Anil Deshmukh
<anshuman at ...16510...> wrote:
> Hi,
>
> Could you please elaborate on the internal bug for tracking this issue? So do you meant to say that I need to put these on your bug tracking system? Or you meant something else?
>
> Though I got answers to my question number 3, but yet to get for question number 1 & 2.
>
>
> Thanks and Regards,
> Anshuman
>
>
> -----Original Message-----
> From: Hui Cao [mailto:hcao at ...1935...]
> Sent: Monday, October 28, 2013 9:26 PM
> To: Anshuman Anil Deshmukh
> Cc: snort-users at lists.sourceforge.net
> Subject: Re: [Snort-users] Queries regarding FRAG3 & STREAM5
>
> Hi Anshuman,
>
> Thanks for the questions. We have internal bug to track this issue.
>
> You can bind to more than two policies.
>
> preprocessor stream5_tcp: bind_to 192.168.1.0/24, policy windows preprocessor stream5_tcp: bind_to 10.1.1.0/24, policy linux preprocessor stream5_tcp: bind_to 172.1.1.0/24, policy linux
>
> Best,
> Hui.
>
> On Mon, Oct 28, 2013 at 7:12 AM, Anshuman Anil Deshmukh <anshuman at ...16512...0...> wrote:
>> Hi,
>>
>>
>>
>> I have some questions regarding FRAG3 & STREAM5 preprocessor. I did
>> try to get answers in the previous posts but couldn't find it there
>> and hence putting it here.
>>
>>
>>
>> 1.  For the said processors it's about defining policy for windows. As
>> per the snort manual it is said that for FRAG3, windows version
>> supported are 95/98/NT4/W2K/XP and for STREAM5 support is upto Vista.
>> Just need to understand if both these preprocessors supports all the
>> other windows versions that are currently available i.e. Windows
>> server 2003/2008/2012, Windows Vista, Windows 7 & Windows 8 (some
>> already covered in stream5, but still not all of them).
>>
>> 2.  Does said preprocessors support all the 64 bit Windows versions
>> and Server Core installations. If answer to all of these is yes, then
>> why not include this in the snort manual? If answer is no, then how
>> soon would they would be included?
>>
>> 3.  What if the ratio of windows:linux machine is around 50:50? Then,
>> for configuring the target based IDS how should these preprocessors configured?
>> And that too in a DHCP environment. If I am not wrong for DHCP
>> environment, it can be achieved by having IP reservations on DHCP
>> server for one of them as one can plan to have bind_to for networking
>> devices as well. As per the snort design we can only have 2
>> definitions for bind_to
>>
>>
>>
>> Thanks and Regards,
>>
>> Anshuman
>>
>>
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