Reply to post: Re: Analogy Units

Stern Vint Cerf blasts techies for lackluster worldwide IPv6 adoption

TheVogon Silver badge

Re: Analogy Units

"this means that in practice that there are 2^53 usable IPv6 addresses."

No, it means that IPV6 can handle 2^53 routable networks.

"What it means is that in practice, an IPv6 /56 prefix is the same as an IPv4 single address with NAT"

Sure. But it's now the routable address of a network.

"2^53 usable IPv6 addresses. This is 2 million times (2^(53-32) = 2^21) more than IPv4"

No, IPv6 can handle ~ 2 million times more routable networks. IPv6 can also handle ~ 2^85 times more addresses than IPv4.

POST COMMENT House rules

Not a member of The Register? Create a new account here.

  • Enter your comment

  • Add an icon

Anonymous cowards cannot choose their icon

Biting the hand that feeds IT © 1998–2019