From: Peter van Oene (pvo@usermail.com)
Date: Tue Feb 18 2003 - 18:31:15 GMT-3
At 02:47 PM 2/18/2003 -0500, Cameron, John wrote:
>Muyeen,
>
>I agree with you that you may not want to do this in the real world - but
>technically you can use
>the aggregate-address command to announce networks that you learned from
>other AS's. Please
>see Halabi page 354-362. In his examples he takes 192.68.10.0/24 from AS2
>and 192.68.11.0/24
>from AS1 and summarizes them to 192.68.0.0/16 within AS3 and then announces
>this summarization
>to AS5.
Of note, the original poster was looking to aggregate /24 with a /24. This
is likely not to be functional.
>
>JDC
>
>
>C i s c o S y s t e m s John Cameron, AES EAST
> Network Consulting Engineer
> Research Triangle Park
> || || Cisco Systems, Inc.
> || || Phone: 919 392-3435
> |||| |||| Pager: 800 365-4578
>..:||||||:..:||||||:.. Email: cameron@cisco.com
>
>-----Original Message-----
>From: Muyeenp@aol.com [mailto:Muyeenp@aol.com]
>Sent: Tuesday, February 18, 2003 2:22 PM
>To: Cameron, John; love_cisco@hotmail.com; ccielab@groupstudy.com
>Subject: Re: GBP Question
>
>
>You cannot aggregate an address that does not belong to you. Here
>150.50.31.0/24 belongs to AS100 not to AS200.
>It is not recommended to remove or hide any AS number in its path. If you
>do, you are disabling its loop avoidance feature.
>
>M
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