From: Clay K Auch (clauch) (clauch@cisco.com)
Date: Mon Oct 01 2007 - 23:48:36 ART
Hello Joseph,
I highly recommend this link below. They have laid out the information in such a way that allows you to understand it by the end of the read.
http://www.internetworkexpert.com/resources/01700370.htm
Enjoy!
Clay
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of Joseph Brunner
Sent: Monday, October 01, 2007 9:08 PM
To: 'Cisco certification'
Subject: help with complex wildcard masks
Good evening (or morning/afternoon if you are east of ZULU time),
I was wondering if someone can point me to a good source of information for calculating complex wild card masks. I'm very fast/accurate and anding/xoring a few
Ip addresses and coming up with an ip address and a discontinuous-ones wild card mask to permit several addresses on one acl line thanks to the Brians's nice paper we all see here often. I'm more interested in things like this.
Match 10.0.1.0/24 through 10.248.0.0/24 in as few acl lines as possible.
What is the trick to calculation of the wild card masks? I often see weird answers here and there that wont match a few subnets from that group (say 3), then they bundle them in to make 4 or 5 lines to solve the above question.
I would really appreciate some direction here.
Thanks,
Joseph Brunner
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