From: Tom Rogers (cccie71@yahoo.com)
Date: Sat May 29 2004 - 11:24:38 GMT-3
Howard,
We were thinking of multihoming. I have few questions to ask U.
1)Do we have to justify for desiring an AS , IIRC from ARIN ?
2)Where do we get the independent network #s?
3)Will my 2 diiferent ISPs route my class c network? (I was reading in the group somewhere that only /19 re routable..
Thanx in advance
Tom
"Howard C. Berkowitz" <hcb@gettcomm.com> wrote:
At 9:44 PM -0400 5/28/04, Peter van Oene wrote:
>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.
Peter, did you just use "clueful ISP practice" in the same thought as
"CCIE lab"?
>
>>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.
It's really not that difficult to get an AS -- $500 per year, IIRC
from ARIN and probably about the same from the other routing
registries. RIPE-NCC requires and ARIN recommends that you register
your routing policy in their routing registry database -- and if you
don't know how to do that, you really shouldn't be running BGP in the
Internet. A competent consultant can set up a reasonable multihoming
policy and do your application in under a day. Get a consultant and
watch closely -- make training a part of the contract.
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