Mailing List Archive

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.

I have >50,000 subscribers behind CGNat. I would have to find out from the assigners group, the rate at which static/public IP address sales increased during our CGNat deployment over the last few years. I do understand that we had an up-tick in public IP sales, but unsure of the rate at which it occurred… actually I may have to get in contact with the sales group for a question like that.



About problems (BTW, we use Juniper MX platform with service mic/mpc) … we had some significant issues initially… but things like…



* Tuning the IGP to route to the closest CGNat boundary node, consistently
* AMS interface source-ip load balancing
* APP
* EIM
* EIF



…help greatly in fixing issue with authentication on websites (webmail, banking) and also, vpn issues, and issues with gaming consoles, were largely resolved with those aforementioned enhancements



-Aaron

>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

Out of curiosity, based on your experience, or anyone else that wishes to respond, how many public IPs are required per 1000 customers?