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Re: Implementations/suggestions for Multihoming IPv6 for DSL sites
From: Joe Maimon <jmaimon () ttec com>
Date: Fri, 08 Apr 2011 09:54:39 -0400

Owen DeLong wrote:

On Apr 7, 2011, at 8:13 PM, Tom Limoncelli wrote:

On Thu, Apr 7, 2011 at 10:51 PM, Owen DeLong<owen () delong com>  wrote:
There is no need for NAT in order to multiple-home. BGP is every bit as effective and much simpler.

I know a lot of small businesses with one FiOS link and one Comcast
link and I don't think they're going to be able to do BGP. Their
providers won't do it and their prem equipment doesn't support it and
the local IT person doesn't have the know-how to do it.  I know that
the typical NANOG member isn't in this category, but this is a
use-case that is very common and outnumbers NANOG members.

I have one DSL and one Cable. Neither the DSL provider nor Comcast
will do BGP. I do BGP just fine without them doing BGP.


Your use case requires at minimum a triangle, ideally a rectangle.

Along for the ride comes encapsulation, overhead, additional bottlenecks and failure scenarios. The payoff has to be worth it and that usually means something more than the elimination of napt on outbound internet access, such as inbound access to bring-your-own-ip.

For anyone to do this requires beyond basic know-how and a willing 3rd point. I'll do it for a customer, but it is by no means readily available, or even ideal, so lets stop hyping it.


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