Ipv6 help

Thu Aug 27 05:58:15 UTC 2020

Brian Johnson <brian.johnson at netgeek.us> writes:

>> 1) It needs *much less* IPv4 addresses (in the NAT64) for the same number of customers.
>
> I cannot see how this is even possible. If I use private space
> internally to the CGN, then the available external space is the same
> and the internal customers are the same and I can do the same over sub
> ratio under both circumstance. Tell me how the math is different.

Because NAT64 implies DNS64, which avoids NATing any dual stack service.
This makes a major difference today.

Bjørn