[Snort-users] Pass rules need SID in 2.6.1

Justin Heath justin.heath at ...11827...
Fri Nov 17 10:05:59 EST 2006


It's not just pass rules that require SID.

SID's act as a unique identifier for a rule. This is why they are
required. Plus it's just good practice.

Cheers,
Justin Heath

On 11/17/06, James Lay <jlay at ...13475...> wrote:
> On Fri, 17 Nov 2006 07:07:11 -0500
> "Jeff Dell" <jdell at ...1095...> wrote:
>
> > You will need to put a sid value in the rule. While you are at it I
> > would probably put a rev too. Per the FAQ private SID numbers start
> > with 1000000 but you will want to make sure you don't have any
> > conflicts.
> >
> >  pass icmp $EXTERNAL_NET any -> $HOME_NET any (icode:3; itype:3;
> > sid:1000000; rev:1;)
> >  pass icmp any any -> any any (icode:13; itype:3; sid:1000001; rev:1;)
> >
> > Cheers,
> >
> > Jeff
> >
> > > -----Original Message-----
> > > From: snort-users-bounces at lists.sourceforge.net
> > > [mailto:snort-users-bounces at lists.sourceforge.net] On Behalf
> > > Of James Lay
> > > Sent: Friday, November 17, 2006 6:12 AM
> > > To: Snort
> > > Subject: [Snort-users] Pass rules need SID in 2.6.1
> > >
> > > Hrmmm:
> > >
> > > Nov 17 04:07:33 myshield snort[29024]: FATAL
> > > ERROR: /chroot/snort/etc/snort/rules/myshield.rules(1) => Each rule
> > > must contain a Rule-sid
> > >
> > > myshield.rules:
> > >
> > > pass icmp $EXTERNAL_NET any -> $HOME_NET any (icode:3; itype:3;)
> > > pass icmp any any -> any any (icode:13; itype:3;)
> > >
> > > Looked in the docs but didn't see why this is now...
> > >
> > > James
> > >
> > > --------------------------------------------------------------
>
> Thanks Jeff....interesting that it just kicked in with version 2.6.1.
> Personally I'm not sure I see the benefit of sidding pass rules..but
> eh..guess I'll just have to add them now.
>
> James
>
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