From: Tim Fletcher (tim@fletchmail.net)
Date: Tue Mar 25 2003 - 12:52:54 GMT-3
Frank,
You prefix list would also match 200.201.X.0, 200.202.X.0 ... 200.207.X.0.
Although the last 3 bits of the 2nd octet are 0s, we still need to match
all of them to match 200 exactly.
-Tim Fletcher
At 06:52 AM 3/25/2003 -0700, Frank Maisano wrote:
>I think your idea would work but I would venture a more correct
>answer would be: 200.200.x.0/13 ge24 le24
>
>I have not been able to find a lot of good documentation, but
>from what I have seen, you need to find the significant bits
>for the octet you care about (like a CIDR address).
>
>Your second octet is 200 which looks like this:
>
>11001000
>
>You really only care about the first 5 bits. The last 3 are zeros
>and therefore, can be subtracted from the /16 you indicated.
>
>If this is not correct, I invite any and all to correct me so I can
>get it right as well.
>
>-----Original Message-----
>From: Motohiro Yamanaka [mailto:yamanaka@fsas.fujitsu.com]
>Sent: Tuesday, March 25, 2003 2:54 AM
>To: ccielab@groupstudy.com
>Subject: Prefix-list
>
>
>Hi all
>
>I want to write the undermentioned network by one line by using
>"Prefix-list". How should I do?
>
>200.200.X.0/24 (X is arbitrary)
>
>
>My idea is
>
>#ip prefix-list ATM-EIGRP seq 5 permit 200.200.0.0/16 ge 24 le 24
>
>Is this correct?
>
>Thanks
>
>-------------------
>Motohiro Yamanaka
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