RE: ACL question

Whoops...and this is why you pay EXTRA attention to detail : )

You have 2 bits of difference, the 1 bit AND the 2 bit

13 1101
14 1110
----------------------
        0011

So this makes things a little more interesting...because there are 2 bits of
difference it will allow 4 routes .... So you can either explicity permit
the 2 you want and the implicit deny at the end will take care of everything
else, or you can play with a bunch of other denies...

Permit 172.168.13.0
Permit 172.168.14.0

This might actually be the easiest way to do this.

Regards,

Joe Astorino
CCIE #24347 (R&S)
Sr. Support Engineer - IPexpert, Inc.
URL: http://www.IPexpert.com
 
-----Original Message-----
From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of
Bobby Kimble
Sent: Monday, June 08, 2009 12:19 PM
To: Cisco certification
Subject: ACL question

Hello All,
I have the following question:

Say I have a router that is receiving the following addresses via rip:

 172.168.15.0/24
.172.168.14.0/24
 172.168.13.0/24
 172.168.12.0/24

If I only want to receive .12 and .13 I would use the following acl:

permit 172.168.12.0 0.0.1.0

What would I use if I only want to receive .13 and .14?

I tried 172.168.13.0 0.0.1.0 , but I am still only receiving .12 and .13.
Where am I going wrong?

-Bobby

Blogs and organic groups at http://www.ccie.net
Received on Mon Jun 08 2009 - 12:36:41 ART