Access to the IPv4 net for IPv6-only systems, was: Re: WG Action: Conclusion of IP Version 6 (ipv6)

Thu Oct 4 03:59:54 UTC 2007

-----Original Message-----
From: JAKO Andras [mailto:jako.andras at eik.bme.hu] 
Sent: Wednesday, October 03, 2007 8:59 PM
To: Church, Charles
Cc: nanog at merit.edu
Subject: RE: Access to the IPv4 net for IPv6-only systems, was: Re: WG
Action: Conclusion of IP Version 6 (ipv6)

>An IPv6-only ISP with enough IPv4 addresses for its concurrent online 
>users seems strange. Why wouldn't that ISP give those v4 addresses to
the 
>online users instead of the NAT-PT box? And why do you call it
IPv6-only?

>Andras

Because not all users are online at the same time.  Think back to the
days where you had x number of dialup lines for y number of subscribers.
It might be a 2:1 ratio.  Maybe more, depending on how many time zones
an ISP serves.  It's not a huge plus, but once IPv4 content providers
can see where x% of their web hits are coming from these NAT-PT blocks,
they might be more motivated to go dual-stack.

Chuck 