Wildcard mask

From: Rods Rods2 (rods1234@hotmail.com)
Date: Fri Feb 22 2008 - 00:56:17 ARST

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Hello masters.

I am getting confusing studying some kinds of wildcard masks. I understand
well the tradional wildcard mask for VLSM, but others are very weird.
I would like to know how to calculate this masks, as example:
How to only permit routes that the third octect is 5, 10, 13, 14 using only
two ACL. (Net 192.168.x.0) ?

I got the answer from a book:

access-list 10 permit 192.168.5.0 0.0.8.255
access-list 10 permit 192.168.10.0 0.0.4.255

How to get that answer? I really didn't undestand. Is that rigth ?

Thanks in advance.

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