NAT444 alone is not enough. You will need to deploy it along with 6rd or DS-lite.
Whilst you still have global v4, use it. The best is to deploy dual-stack, but that won't last for too long. Regards, as- On 1 Sep 2011, at 15:36, Serge Vautour wrote: > Hello, > > Things I understand: IPv6 is the long term solution to IPv4 exhaustion. For > IPv6 to work correctly, most of the IPv4 content has to be on IPv6. That's > not there yet. IPv6 deployment to end users is not trivial (end user support, > CPE support, etc...). Translation techniques are generally evil. IPv6->IPv4 > still requires 1 IPv4 IP per end user or else you're doing NAT. IPv4->IPv6 > (1-1) doesn't solve our main problem of giving users access to the IPv4 > Internet. > > > I expect like most companies we're faced with having to extend the life of > IPv4 since our users will continue to want access to the IPv4 content. Doing > that by giving them an IPv6 address is not very feasible yet for many > reasons. NAT444 seems like the only solution available while we slowly > transition over to IPv6 over the next 20 years. Based on the this RFC, NAT444 > breaks a lot of applications! > > http://tools.ietf.org/html/draft-donley-nat444-impacts-01 > > Has anyone deployed NAT444? Can folks share their experiences? Does it really > break this many apps? What other options do we have? > > > Thanks, > Serge