From: MMoniz (ccie2002@tampabay.rr.com)
Date: Fri May 28 2004 - 17:20:32 GMT-3
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!!
Just as you can filter the same with an AS-path filter from your ISP.
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
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