Throw me a IPv6 bone (sort of was IPv6 ignorance)

Mark Radabaugh mark at
Sat Sep 22 13:23:10 UTC 2012

On 9/22/12 4:03 AM, Tore Anderson wrote:
> * Mark Radabaugh
>> We can already do dual stack - that's not really a problem.  I was
>> really rather hoping to avoid the giant NAT box.  I'll take a look at DS
>> Lite and or NAT64/DNS64 and see if that makes any sense.
> Both DS-Lite and NAT64 contain some form of a «giant NAT box» as part of
> the solution, I'm afraid. Same shit, different wrapping.
> You might want to look into MAP, which to the best of my knowledge is
> the only solution that facilitates IPv4 address sharing between
> subscribers without any form of (centralised) NAT.
>> Running dual stack to residential consumers still has huge issues with
>> CPE.  It's not an environment where we have control over the router the
>> customer picks up at Walmart.
> In that case, running IPv6-only to your subscribers isn't a realistic
> proposition at this point in time. Unfortunately. If you're running out
> of IPv4 addresses, you better try to get your hands on more of them,
> somehow, or start planning for the «giant NAT box» you're going to need.
> Alternatively, you could begin providing all your *new* subscribers with
> managed CPEs that support DS-Lite, MAP, NAT64/DNS64/464XLAT (or
> whichever other IPv4 life-support technology you end up choosing), while
> at the same time letting your old subscribers with their IPv4-only
> Walmart CPEs hang on to their public IPv4 address for as long as they
> need it.
> Best regards,

Thanks for the help.  We are actually in decent shape with respect to 
IPv4, probably at least 1 if not 2 years at current growth rate. We can 
deliver dual stack with public IPv4/6 to customers now.  This is the 
planning stage for <<giant NAT box>>, assuming there are no better options.

We are starting to provide some customers with managed CPE and your 
alternative suggestion may be the way to go.  There are several other 
business/management/support advantages to Amplex supplying the CPE.   
This may be reason enough to expand that program.

I didn't really think we would be able to run IPv6 only in the near 
future but wanted to make sure I wasn't missing something obvious.

Mark Radabaugh

mark at  419.837.5015

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