Re: IPv6 NAT64

[William Herrin <bill () herrin us>]

On Wed, Jan 23, 2019 at 1:06 PM Art Stephens <astephens () ptera com> wrote:
> I know this might be off topic but hopefully not too far off.
> I heard rumors that there are ISPs out there running IPv6 only
> networks where the clients can still get to the IPv4 world without the
> $30,000 plus dollar expense of buying a NAT64 appliance to service
> 4,000 plus customers.
> Anyone have some insight into this?

Hi Art,

Less ISPs than mobile carriers (e.g. T-Mobile) where the operator has
substantial control over the subscriber's CPE and can require the
presence of a CLAT client for 464XLAT.

The key challenge (and key cost driver) with v6-only eyeball networks
is the wealth of obsolete v4-only client software your customers use
that might, if you're lucky, dribble away over the next few decades.

Useful references:
ftp://ftp.registro.br/pub/gter/gter43/06-ipv6-464xlat-residencial.pdf
http://www.litech.org/tayga/

Regards,
Bill Herrin

-- 
William Herrin ................ herrin () dirtside com  bill () herrin us
Dirtside Systems ......... Web: <http://www.dirtside.com/>