From: Joseph Brunner (joe@affirmedsystems.com)
Date: Mon Oct 01 2007 - 22:08:28 ART
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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