From: Jason Guy \(jguy\) (jguy@cisco.com)
Date: Mon Jun 04 2007 - 10:51:33 ART
Oops...I am off by a bit...Bhaskar is correct.
Jason
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
Of
> Jason Guy (jguy)
> Sent: Monday, June 04, 2007 9:27 AM
> To: prashant sansare; ccielab@groupstudy.com
> Subject: RE: ROute Filtering clarification
>
> Prashant,
>
> You just need the right ACL and wcard mask. So for the 3rd octet to
be
> even, the second bit must be a 1. I have not verified this on a
router
> to double check, but try this:
>
> access-list 2 permit 201.1.2.0 0.0.253.255
>
> This should allow anything that has the second bit set (anything that
is
> a multiple of 2) to be matched.
>
> Jason
>
> > -----Original Message-----
> > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
> Of
> > prashant sansare
> > Sent: Monday, June 04, 2007 7:07 AM
> > To: ccielab@groupstudy.com
> > Subject: ROute Filtering clarification
> >
> > Hi
> > Can some one please help me to understand the ACL
> >
> > Scenerio:Route filtering
> >
> > R1-----se0/0-----R2
> >
> >
> > Networks on R2
> > 201.1.1.1/24
> > 201.1.2.1/24
> > 201.1.3.1/24
> > 201.1.4.1/24
> > 201.1.5.1/24
> >
> > EIgrp is the routing protocol running R1 needs to receive the
routers
> > with
> > 201.1.x.0 range that have even number in the third octet
> > can some one pls explain me how do we filter the third octet evn
> > numbers,please explain me the logic of filter the even numbers
> >
> > i know how acl works and stuff and how to do router filtering
> >
> > access-list 2 deny 201.1.1.0 0.0.254.255
> > access-list 2 permit any
> >
> > router eigrp 123
> > network 201.1.1.0
> > network 201.1.2.0
> > network 201.1.3.0
> > network 201.1.4.0
> > network 201.1.5.0
> > network 201.1.6.0
> >
> > distribute-list 2 out se 0/0
> >
> > can any one please me explain me the logic of filtring the even from
> the
> > acl
> > how to play with wild card mask to acheive our requirment
> >
> >
> > Regards
> > Prashant
> >
> >
>
This archive was generated by hypermail 2.1.4 : Sun Jul 01 2007 - 17:24:46 ART