[c-nsp] ipv6

[Justin M. Streiner]

On Wed, 5 Jun 2013, Aaron wrote:

> There seems to be so many ways to do ipv6..(I'm not clear on what to use and
> why to use it and when to use it..)
>
> What is the best way to migrate my customers to IPv6 with zero impact
> (meaning, all internet and services are still reachable when done moving to
> ipv6) ?

Define "migrate".  Do you mean doing dual-stack to the end-users?  If 
not, you will need to provide a transition mechanism for your IPv6-only 
user base to see the IPv4-only Internet.  That means some of flavor of 
NAT, such as NAT64.  Different people have had different experiences in 
deploying LSN/CGN solutions.

I suspect if your customers suddenly couldn't reach large chunks of the 
Internet after the migration, they would not be happy ;)

If you are making IPv6 available to your end users, does their CPE support 
it?  Some CPE does support it today.  Some can do it with a firmware 
upgrade, and the rest will need to be replaced.

Does your infrastructure (not just the network hardware, but also your
provisioning systems, IPAM, customer support tools, other back-end systems,
etc) support it today?

> I don't need configs and technical details, just a technique or technology
> answer for now will suffice to get my moving in a research direction.

Beyond that, you need to give a lot of careful thought to your IPv6 
addressing plan.  This has been discussed quite a bit in recent months on 
NANOG, and possibly a bit here, but this is your chance to correct address 
assignment mistakes that were made (often, unavoidably, due to address 
scarcity) in IPv4.

jms