RE: Looking for an IPv6 naysayer...

["George Bonser" <gbonser () seven com>]

> Hmm, I am not aware of Comcast (or any other large MSO) doing any NAT
> on
> large scale.  Having said that almost all of the DSL customers in the
> US
> are being NAT'ed, but on the edge device (DSL modem) rather than in
the
> core.
>
> --
> Scott Helms
> Vice President of Technology
> ISP Alliance, Inc. DBA ZCorum


How many instances of 10/8 did they say they were running?  I was behind
a NAT when I had Comcast service. I am behind a NAT currently with my
AT&T service.

Note that the NAT was done on the "cable modem" in both cases and not
further in to their network.  That said, from my reading of some
industry large scale NAT devices (the A10 AX series is one which I am
familiar with), they do things such as full cone NAT so it will still
work with many applications that might break with conventional overload
dynamic NAT.