Suresh,
This syntax is technically invalid. The range portion of your
construct is going to be ignored using this syntax. For example,
itype:> x <> y will be evaluated as itype:> x.
Thanks,
Justin Heath
On 4/4/07, Suresh Kumar J <suresh.kumar.j@gmail.com> wrote:
> I wanted to hear from the Snort developers/experts about the validity
> of the following usages of 'itype' and 'icode' constructs. These
> options are accepted by the Snort 2.6 tool, but am not sure if they
> make any sense:
> itype:> x <> y
> itype:< x <> y
> itype:> x > y
> itype:< x < y
>
> --Suresh
>
> On 4/4/07, Joel Esler <joel.esler@sourcefire.com> wrote:
> > When in doubt, test it out!
> >
> >
> > On Wed, Apr 04, 2007 at 12:38:20PM +0530, it looks like Suresh Kumar J sent
> > me:
> > > Just to clarify, I have used '41' and '80' just as an example. My
> > > question was on the syntax of the 'itype' and 'icode' constructs...
> > >
> > >
> > > On 4/4/07, Suresh Kumar J <suresh.kumar.j@gmail.com> wrote:
> > > > Hi!
> > > >
> > > > I have a question on the format of the 'icode' and 'itype' options
> > > > since it seems to cause confusion.
> > > >
> > > > Below is the format of the 'itype' and 'icode' options as defined in
> > > > v2.6.x:
> > > > itype: [<|>]<number>[<><number>];
> > > > icode: [<|>]<number>[<><number>];
> > > >
> > > > With this format, I know that the following options are valid:
> > > > (itype:<41;)
> > > > (itype:>80;)
> > > > (itype:41<>80;)
> > > >
> > > > I wanted to know whether or not the following options are valid and
> > > > really make sense:
> > > > (itype:>41<80)
> > > > (itype:>41<>80)
> > > > (itype:<41<>80)
> > > > (itype:>41>80)
> > > > (itype:<41<80)
> > > >
> > > > Appreciate your inputs.
> > > >
> > > > --
> > > > Thanks and Regards,
> > > > Suresh Kumar J
> > > >
> > >
> > >
> > > --
> > > Thanks and Regards,
> > > Suresh Kumar J
> > >
> > > -------------------------------------------------------------------------
> > > Take Surveys. Earn Cash. Influence the Future of IT
> > > Join SourceForge.net's Techsay panel and you'll get the chance to share
> > > your
> > > opinions on IT & business topics through brief surveys-and earn cash
> > > http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV
> > > _______________________________________________
> > > Snort-users mailing list
> > > Snort-users@lists.sourceforge.net
> > > Go to this URL to change user options or unsubscribe:
> > > https://lists.sourceforge.net/lists/listinfo/snort-users
> > > Snort-users list archive:
> > > http://www.geocrawler.com/redir-sf.php3?list=snort-users
> > >
> >
> >
> >
> > +---------------------------------------------------------------------+
> > Joel Esler Security Consultant
> > gpg key: http://demo.sourcefire.com/jesler.pgp.key
> > +---------------------------------------------------------------------+
> >
>
>
> --
> Thanks and Regards,
> Suresh Kumar J
>
> -------------------------------------------------------------------------
> Take Surveys. Earn Cash. Influence the Future of IT
> Join SourceForge.net's Techsay panel and you'll get the chance to share your
> opinions on IT & business topics through brief surveys-and earn cash
> http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV
> _______________________________________________
> Snort-users mailing list
> Snort-users@lists.sourceforge.net
> Go to this URL to change user options or unsubscribe:
> https://lists.sourceforge.net/lists/listinfo/snort-users
> Snort-users list archive:
> http://www.geocrawler.com/redir-sf.php3?list=snort-users
>
-------------------------------------------------------------------------
Take Surveys. Earn Cash. Influence the Future of IT
Join SourceForge.net's Techsay panel and you'll get the chance to share your
opinions on IT & business topics through brief surveys-and earn cash
http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV
_______________________________________________
Snort-users mailing list
Snort-users@lists.sourceforge.net
Go to this URL to change user options or unsubscribe:
https://lists.sourceforge.net/lists/listinfo/snort-users
Snort-users list archive:
http://www.geocrawler.com/redir-sf.php3?list=snort-users
|