RE: PERMITING ODD\EVEN PREFIXES

Tannie,

> -----Original Message-----
> Sent: Tuesday, March 23, 2010 12:15 PM
> To: ccielab_at_groupstudy.com
> Subject: PERMITING ODD\EVEN PREFIXES
>
> Hi all,
>
> Please I need someone to help me out in explaining how to derive odd\even
> prefixes (wildcards).
>
> Forinstance,
> ip aceess-list standard ODD_FIRST_OCTET
> permit 1.0.0.0 254.255.255.255
>
> Is there a formular for arriving at this wildcard?
>

Binary math, parts I and II by Scott is the way to go:

http://blog.ine.com/2008/09/15/binary-math-part-i/

Blogs and organic groups at http://www.ccie.net
Received on Tue Mar 23 2010 - 16:23:45 ART