Re: Match prefixes gt using access-list? (Old Thread) Never Mind

From: Michael Snyder (msnyder@xxxxxxx)
Date: Fri Aug 10 2001 - 17:00:38 GMT-3


   
Never Mind, I answered my own questions. Sometimes it helps to write it
out.

>
> Q1. Is the second piece of data being processed against the access list
in
> fact the mask of the route? I think it's safe to assume it is.
>
Yes.
>

> Q2. What is the nature of operation two? Lesser than, Greater than, And,
> Or, XOR. within, match, inclusive, exclusive all come to mind. Because a
> mask has little meaning by itself, (it's mainly an offset, used to find
the
> upper limit of a range of numbers) I'm having trouble wrapping my mind
> around what a result of operation two could be true, or false.

Thinking too hard. The mask number is just compared to a range setup by the
access list, if it's within the range, the condition is true.

>
>
> Q3. Does Operation One and Operation Two effect each other, other than
> Operation One has to be true before Operation Two is checked.
>

No, it's exactly the same as before.
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