[154216] in North American Network Operators' Group
Re: technical contact at ATT Wireless
daemon@ATHENA.MIT.EDU (PC)
Thu Jun 28 16:22:13 2012
In-Reply-To: <CAL9jLaazvGAHj+KoSMJ3yZXc9JFPV8S-XcULryuVL07D2epF9w@mail.gmail.com>
Date: Thu, 28 Jun 2012 14:20:51 -0600
From: PC <paul4004@gmail.com>
To: Christopher Morrow <morrowc.lists@gmail.com>
Cc: NANOG <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
I'm sure they use carrier grade NAT, yes.
However, nothing would prevent them from using a unique public IP assigned
to them for their DNS servers like others do.
Using RFC1918 space for a routed destination of an ISP service (DNS) is
particularly problematic for many VPN client configurations with corporate
address range overlap.
-Paul
On Thu, Jun 28, 2012 at 1:40 PM, Christopher Morrow <morrowc.lists@gmail.com
> wrote:
> On Thu, Jun 28, 2012 at 3:35 PM, PC <paul4004@gmail.com> wrote:
>
> > Why they don't use public IP space belonging to them for DNS servers, I
> do
> > not know.
>
> they have the same addresses used in multiple VRF's? so much simpler
> for them to manage...
>
