Re: Queries regarding FRAG3 & STREAM5

[Hui Cao <hcao () sourcefire com>]

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 () cybage com> 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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