Re: IPv6 native percentage (end user perspective)

["Curtis, Bruce via NANOG" <nanog () lists nanog org>]

On Jun 19, 2025, at 3:12 PM, Forrest Christian (List Account) via NANOG <nanog () lists nanog org> wrote:

That is, if I switch to IPv6 on my eyeball network, how much of my existing
traffic will I have to CGNAT in some way to reach the IPv4-only network?


At NDSU we see between 55% and 65% of inbound traffic is IPv6.

So if you are sizing your CGNAT box based on bandwidth it can be about half the size if you have IPv6 enabled 
everywhere.

If you are sizing your CGNAT box based on flows/sessions rather than bandwidth the split is still about 50% for us.

We have had IPv6 enabled on our entire campus network including wireless since 2008.




Bruce Curtis
Network Engineer  /  Information Technology
NORTH DAKOTA STATE UNIVERSITY
phone: 701.231.8527
bruce.curtis () ndsu edu





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