RE: BGP customers?

From: Peter van Oene (pvo@usermail.com)
Date: Fri May 28 2004 - 22:44:02 GMT-3


At 04:20 PM 5/28/2004, MMoniz wrote:
>Also in the real world, most ISP's will offer to advertise either customer
>only or all routes.
>I would assume they accomplish this with an AS-path filter to you! Much
>simpler!!

usually communities if they are clueful.

>Just as you can filter the same with an AS-path filter from your ISP.

agree

>We have this exact scenario where we are multihomed with our own AS and
>accept full routes. In fact if
>you are multihomed I think you must have your own AS, or an agreement
>between your different ISP's.
>
>Good luck on that!!!
>
>
>Mike
>CCIE# 13347
>
>
>
>-----Original Message-----
>From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
>Scott Morris
>Sent: Friday, May 28, 2004 1:54 PM
>To: 'ccie2be'; 'Group Study'
>Subject: RE: BGP customers?
>
>
>I wouldn't say 'typically' at all. I've worked with a number of enterprise
>custmers that are multihomed with their own IP addresses that do indeed have
>their own AS number. Some have a real need, others a perceived need...
>But, many do!
>
>As for the lab though, it is possible to filter prefixes without taking the
>AS number into account. If you're given a different AS, you can work with
>it. If you aren't given this information you can work without it. Assume
>that both are fair game!
>
>
>Scott Morris, CCIE4 (R&S/ISP-Dial/Security/Service Provider) #4713, CISSP,
>JNCIP, et al.
>IPExpert CCIE Program Manager
>IPExpert Sr. Technical Instructor
>swm@emanon.com/smorris@ipexpert.net
>http://www.ipexpert.net
>
>
>
>-----Original Message-----
>From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
>ccie2be
>Sent: Friday, May 28, 2004 12:52 PM
>To: Group Study
>Subject: BGP customers?
>
>Hi Guys,
>
>Typically, in the real world, an ISP's customers don't have their own
>registered AS number. But, in the lab, if wer'e told to filter the prefixes
>of an ISP's customers, should we assume then, this ISP's customers have
>their own AS number unless we're given the actual prefixes?
>
>Thanks, Tim
>
>_______________________________________________________________________
>Please help support GroupStudy by purchasing your study materials from:
>http://shop.groupstudy.com
>
>Subscription information may be found at:
>http://www.groupstudy.com/list/CCIELab.html
>
>_______________________________________________________________________
>Please help support GroupStudy by purchasing your study materials from:
>http://shop.groupstudy.com
>
>Subscription information may be found at:
>http://www.groupstudy.com/list/CCIELab.html
>
>_______________________________________________________________________
>Please help support GroupStudy by purchasing your study materials from:
>http://shop.groupstudy.com
>
>Subscription information may be found at:
>http://www.groupstudy.com/list/CCIELab.html



This archive was generated by hypermail 2.1.4 : Wed Jun 02 2004 - 11:12:19 GMT-3