nanog mailing list archives

Re: ISP customer assignments


From: Nathan Ward <nanog () daork net>
Date: Wed, 14 Oct 2009 22:54:02 +1300


On 14/10/2009, at 7:23 PM, Mark Andrews wrote:

DS-Lite is there for when the ISP runs out of IPv4 addresses to
hand one to each customer.  Many customers don't need a unique IPv4
address, these are the ones you switch to DS-Lite.  Those that do
require a unique IPv4 you leave on full dual stack for as long as
you can.
The authors of DS-lite say it's because running a dual stack network is hard.

You clearly don't share that view , so in your view what's wrong with dual stack with IPv4for everyone then, whether they need a unique address or not?

DS-lite requires CGN, so does dual stack without enough IPv4 addresses.

This is probably the wrong forum for a DS-lite debate. I'm sure people have a use for it, they actually might have gear that can only do IPv4 OR IPv6 but not both or something. My problem with it is that it's being seen as a solution for a whole lot of people, when in reality it's a solution for a small number of people.



Thanks for the point about the tunnel brokers though, I missed that, I'll update this tomorrow with any suggestions I get before then.

--
Nathan Ward


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