So the question is: where do you perform the NAT and how can it be redundant?




Thanks,

Joshua Moore
Network Engineer
ATC Broadband
912.632.3161

> On Jul 5, 2015, at 10:12 AM, Mel Beckman <m...@beckman.org> wrote:
> 
> Josh,
> 
> Your job is simple, then. Deliver dual-stack to your customers and if they 
> want IPv6 they need only get an IPv6-enabled firewall. Unless you're also an 
> IT consultant to your customers, your job is done. If you already supply the 
> CPE firewall, then you need only turn on IPv6 for customers who request it. 
> With the right kind of CPE, you can run MPLS or EoIP and deliver public IPv4 
> /32s to customers willing to pay for them. Otherwise it's private IPv4 and 
> NAT as usual for IPv4 traffic. 
> 
> -mel via cell
> 
>> On Jul 5, 2015, at 6:57 AM, Josh Moore <jmo...@atcnetworks.net> wrote:
>> 
>> We are the ISP and I have a /32 :)
>> 
>> I'm simply looking at the best strategy for migrating my subscribers off v4 
>> from the perspective of solving the address utilization crisis while still 
>> providing compatibility for those one-off sites and services that are still 
>> on v4.
>> 
>> 
>> 
>> 
>> Thanks,
>> 
>> Joshua Moore
>> Network Engineer
>> ATC Broadband
>> 912.632.3161
>> 
>> On Jul 5, 2015, at 9:55 AM, Mel Beckman <m...@beckman.org> wrote:
>> 
>>>> 
>>>> Josh Moore wrote:
>>>> 
>>>> Tunnels behind a CPE and 4to6 NAT seem like bandaid fixes as they do not 
>>>> give the benefit of true end to end IPv6 connectivity in the sense of 
>>>> every device has a one to one global address mapping.
>>> 
>>> No, tunnels do give you one to one global IPv6 address mapping for every 
>>> device. From a testing perspective, a tunnelbroker  works just as if you 
>>> had a second IPv6-only ISP. If you're fortunate enough to have a dual-stack 
>>> ISP already, you can forgo tunneling altogether and just use an 
>>> IPv6-capable border firewall. 
>>> 
>>> William Waites wrote:
>>>> I was helping my
>>>> friend who likes Apple things connect to the local community
>>>> network. He wanted to use an Airport as his home gateway rather than
>>>> the router that we normally use. Turns out these things can *only* do
>>>> IPv6 with tunnels and cannot do IPv6 on PPPoE. Go figure. So there is
>>>> not exactly a clear path to native IPv6 for your lab this way.
>>> 
>>> Nobody is recommending the Apple router as a border firewall. It's terrible 
>>> for that. But it's a ready-to-go tunnelbroker gateway. If your ISP can't 
>>> deliver IPv6, tunneling is the clear path to building a lab. If you have a 
>>> dual-stack ISP already, the clear path is to use an IPv6-capable border 
>>> firewall. 
>>> 
>>> So you are in a maze of non-twisty paths, all alike :)

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