RE: Quantifying the customer support and impact of cgnat for residential ipv4

[Travis Garrison <tgarrison () netviscom com>]

We have 10,000+ customers and by default everyone is behind CGNAT. Around 25 customers have asked for a dedicated 
public IP address and we usually just give them one free of charge. For our case, very low percentage actually request 
one.

Travis

From: NANOG <nanog-bounces+tgarrison=netviscom.com () nanog org> On Behalf Of Eric Kuhnke
Sent: Sunday, November 21, 2021 6:18 PM
To: nanog () nanog org list <nanog () nanog org>
Subject: Quantifying the customer support and impact of cgnat for residential ipv4

Looking for anecdotal examples of the following:

If you put N number of individual DHCP client residential broadband customers behind cgnat for ipv4, what percent of 
customers contact support and become a support/troubleshooting case later.

And what percent of customers have a significant problem with it, to the extent that they either need to be offered a 
$5-10/mo extra /32 dedicated real address, or possibly cancel?

Hopefully on sample sizes of 5000 or more.

All else assuming that the customers are also dual stack v4/v6 and can reach v6 things normally without any of that 
traffic going through the cgnat.