Home page logo
/

nanog logo nanog mailing list archives

Re: Verizon DSL moving to CGN
From: "Rajiv Asati (rajiva)" <rajiva () cisco com>
Date: Mon, 8 Apr 2013 01:38:13 +0000

In all fairness, upgrading the legacy last-mile e.g. DSL infrastructure to support native IPv6 may be too expensive to 
make any economic sense.

Note that Vz FiOS users are not affected by this. And noting that Vz has ~5.5M FiOS HSI customers and ~3M DSL customers 
(per the last earning report), and noting that DSL network is not getting any new investment (in fact, customers are 
being moved from DSL to FiOS), the CGN usage for DSL customers isn't quite surprising.
http://stopthecap.com/2012/08/20/verizon-declares-copper-dead-quietly-moving-copper-customers-to-fios-network/


Many ISPs around the world are choosing to not to invest in the DSL network the way they used to.

Cheers,
Rajiv

Sent from my Phone

On Apr 6, 2013, at 10:13 PM, "Constantine A. Murenin" <mureninc () gmail com<mailto:mureninc () gmail com>> wrote:

On 6 April 2013 18:24, cb.list6 <cb.list6 () gmail com<mailto:cb.list6 () gmail com>> wrote:
Interesting.

http://www22.verizon.com/support/residential/internet/highspeedinternet/networking/troubleshooting/portforwarding/123897.htm

<blockquote>

What is  CGN - and How to opt-out The number and types of devices using the Internet have increased dramatically in 
recent years and, as a result, address space for these devices is being rapidly exhausted. Today’s technology for IP 
addresses is referred to as IPv4 (Internet Protocol version 4). The IP addresses aligned with IPv4 are expected to be 
depleted at some point in the near future. The next generation of IP address space is IPv6, which will enable far more 
addresses to be assigned than IPv4. Unfortunately, most servers and other Internet devices will not be speaking IPv6 
for a while, so IPv4 will remain standard for some time to come.

During this transitional period, in select areas for High Speed Internet residential customers, Verizon will be 
implementing Carrier Grade Network Address Translation (CGN or Carrier Grade NAT). Verizon FiOS and Verizon Business 
customers are not impacted at this time by the change. This transition will enable Verizon to continue serving 
customers with IPv4 internet addresses. CGN will not impact the access, reliability, speed, or security of Verizon’s 
broadband services. However, there are some applications such as online gaming, VPN access, FTP service, surveillance 
cameras, etc., that may not work when broadband service is provided via a CGN.

For our customers utilizing these types of applications, Verizon provides the ability to "opt out “of CGN. To "opt out" 
you must:

   Be a Residential customer with High Speed Internet Service. There is no need to “opt-out” if you are a FiOS or 
Business customer.
   Have already been transitioned to the Carrier Grade Network by Verizon. If you are a Residential High Speed Internet 
customer and are unable to opt-out, it is likely that you have not yet been transitioned to CGN.


To "opt out" of CGN sign onto your My Verizon account and select "Opt out of Carrier Grade Network".

</blockquote>


I like how, according to the document, Verizon must first break your
connectivity, prior to you being able to opt-out. :-)

Also:

select "Opt out of Carrier Grade Network"

Smart wording. :-)

Frankly, I'm surprised to see this news.  I thought Verizon had better
things to do that plan any kind of upgrades or changes to something
that everyone thought they consider dead anyways.

C.


  By Date           By Thread  

Current thread:
[ Nmap | Sec Tools | Mailing Lists | Site News | About/Contact | Advertising | Privacy ]
AlienVault