From: Greg Wendel (gwendel@gmail.com)
Date: Mon Oct 01 2007 - 22:46:19 ART
Joe,
Do you have a copy of the Caslow book? It has a good few pages on ACL's
using a combination of permits and denies. Below is the info. I can get
you the specific pages if you need it.
*Cisco Certification: Bridges, Routers and Switches for ccies*, 2nd Edition
by Andrew Bruce Caslow Caslow, Valeriy Pavlichenko Pavlichenko *...*
On 10/1/07, Joseph Brunner <joe@affirmedsystems.com> wrote:
>
> 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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>
-- Gregory Wendel Springfield VA, 22153
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