From: Victor Cappuccio (cvictor@protokolgroup.com)
Date: Sun Oct 30 2005 - 20:36:11 GMT-3
Hi Montain
it depends, because the first one (I have not done the calculations), will
only permit Network Routes in the class 192.168.20.0/24 to 192.168.23.0/24
(again I have not done the calculations for the wildcard I'm just trusting
your values, but its a simple Xor and And operation in the binaries), and in
the second case one will permit subnets (all 0's) / and also host in that
range---
IMHO I think that It will depend on your CCIE Lab Wording
HTH
Victor Cappuccio
cvictor@protokolgroup.com
..O.
....O
OOO
----- Original Message -----
From: "Montiean" <noktes@bellsouth.net>
To: <ccielab@groupstudy.com>
Sent: Sunday, October 30, 2005 7:24 PM
Subject: wildcard mask question
> Folks,
> Just want to get the idea on wildcard mask using acl in the lab.
> For an example, let say we need to use only one statement in acl to filter
> routes below
>
> 192.168.20.0/24
> 192.168.21.0/24
> 192.168.22.0/24
> 192.168.23.0/24
>
> So we can use either ways as below
>
> access-list 1 permit 192.168.20.0 0.0.3.0
> or
> access-list 1 permit 192.168.20.0 0.0.3.255
>
> The result is going to be the same but which way should be right in the
lab.
> Any comments would be appreciate.
>
> Thanks,
> Montiean
>
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