In message <[email protected]>, Matt Hoppes writes: > I disagree. Any data center or hosting provider is going to continue to > offer IPv4 lest they island themselves from subscribers who have IPv4 > only - which no data center is going to do. > > One can not run IPv6 only because there are sites that are only IPv4. > > Thus, as an ISP you can safely continue to run IPv4. Ipv4 won't be going > away for at least ten years or more - if ever. > > I'm not saying don't be ready for IPv6. I'm not saying don't understand > how it works. But doomsday isn't here.
There are ISP's that are essentially IPv6 only today as they do not have enough IPv4 addresses to give all their customers a public IPv4 address. Once you need to run a GGN you may as well run DS-Lite, MAP* or (shudder) DNS64/NAT64 as NAT444. There is no need to talk IPv4 to your customers today. You still need a small number of IPv4 address to talk to legacy IPv4 servers on the internet. Just because there owners don't know they are legacy servers doesn't mean they aren't. Mark -- Mark Andrews, ISC 1 Seymour St., Dundas Valley, NSW 2117, Australia PHONE: +61 2 9871 4742 INTERNET: [email protected]
