From: Brian (briane@surewest.net)
Date: Fri Jul 28 2006 - 13:17:02 ART
I was using http://mathworld.wolfram.com/XOR.html as a reference. I am
interested in the specific process (steps) that were used in the
example.
Brian
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Mienbaikebi Patani
Sent: Friday, July 28, 2006 9:00 AM
To: Brian
Cc: ccielab@groupstudy.com
Subject: Re: XOR for Computing ACL Masks
I think the XOR works such that u need to have equal number of 0 and 1
for
the result to be equal to 1. Anything other than equal number of 0 and 1
results in a value equal to 0.
Hope that was informative brother.
On 7/28/06, Brian <briane@surewest.net> wrote:
>
> I have been looking at the following example on how to calculate an
> appropriate mask.
> http://www.internetworkexpert.com/resources/01700370.htm. While I
> understand the process that was use (and it works well) I cannot
figure
> out how the mask was calculated using XOR in example 2. If I
understand
> XOR correctly anytime there are an even number of 1's in a computation
> the result of XOR will be 0. When there are an odd number of 1's the
> result will be 1. This does not seem to hold true in the example.
>
> Can someone please help me understand how XOR was applied to come up
> with the mask in example 2. Specifically the second octet is where
the
> confusion comes in. The only conclusions I can draw are that this is
> not truly an XOR or I do not understand XOR.
>
> By the way I tried to XOR 0011 in the MS calculator and the result is
0.
>
> Thanks!
>
>
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