Re: IP Prefix-List question

Hello Nitin,

I think I was pretty clear in my e-mail:

"I have a task in a preparation Lab for CCIE RS"

Preparation Lab = workbook, mock lab, etc; this is what I understand
from my phrase.

This is not a task from the actual lab. Since I did not sit yet for the
latest version (v4 I believe) of the lab, it4s pretty hard to guess the
tasks :)

Cheers,
Calin

On 04/03/2012 05:47 AM, nitin shettigar wrote:
> Hi Calin,
>
> The Cisco NDA policy restricts one to discuss any thing which is related
> directly to the LAB examination. Hope the Cisco guys don't come running
> after you and debar you from the cisco community for life-time.
>
> regards,
>
> Nitin
>
> On Tue, Apr 3, 2012 at 12:59 AM, Calin Chiorean <calin_at_engineer.com
> <mailto:calin_at_engineer.com>> wrote:
>
> Hello,
>
> I have a task in a preparation Lab for CCIE RS and I would like your
> opinion on this.
>
> I have a number of subnets from which the followings are important for
> this task:
>
> 10.4.1.4/30 <http://10.4.1.4/30>
> 10.4.2.8/29 <http://10.4.2.8/29>
> 10.4.3.16/28 <http://10.4.3.16/28>
> 10.4.4.32/27 <http://10.4.4.32/27>
> 10.4.5.64/26 <http://10.4.5.64/26>
> 10.4.6.128/25 <http://10.4.6.128/25>
>
> The other present subnets are something like 10.7.x.x
>
> The request is to configure a prefix-list with base on:
> - allow all subnets in 10.4.0.0
> - as specific as possible, I should not allow other prefixes
> - minimum number of prefix-lists
>
> Considering the above one I did
> ip prefix-list ONE permit 10.4.0.0/21 <http://10.4.0.0/21> ge 25 le 30
>
> However the proposed solution is:
> ip prefix-list ONE seq 5 permit 10.4.0.0/22 <http://10.4.0.0/22> ge
> 23 le 30
> ip prefix-list ONE seq 10 permit 10.4.4.0/22 <http://10.4.4.0/22> ge
> 23 le 28
>
> Both solutions are working, nevertheless which one would you choose in
> an exam?
>
> Thanks and cheers,
> Calin
>
>
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Received on Tue Apr 03 2012 - 08:58:43 ART