RE: prefix lists .. [7:34312]

From: McCallum, Robert (Robert.McCallum@xxxxxxxxxxxxxxxxxx)
Date: Mon Feb 04 2002 - 10:32:51 GMT-3


   
gt = greater than so gt /23 = subnets with a mask of above /23.
lt = less than so lt /17 = subnets with a mask less than /17.

so using prefix lists can you give me an answer which would do the following:-

1. Deny subnets of class B networks
2. Deny supernets of Class C networks
3. Deny networks starting 193.x.x.x
4. permit all else.

For the 1st one ask yourself what makes a class B network a Class B network? F
rom this you will find out what your /x prefix should be. Then what mask = sub
nets of a class B network gt or lt.

and so on

-----Original Message-----
From: dk [mailto:dave.kent@btinternet.com]
Sent: 04 February 2002 12:07
To: cisco@groupstudy.com
Subject: prefix lists .. [7:34312]

Can anyone help me get a handle on the "ge" and "le" options on prefix
lists?
I find them totaly confusing.

Thanks in advance for any advice offered

David



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