Hi Vaibhav, Jen, and list, Jen Linkova <furry13@gmail.com> writes:
On Wed, May 4, 2016 at 7:51 PM, Bajpai, Vaibhav <v.bajpai@jacobs-university.de> wrote:
Hello,
What does v6-only mean?
a) A client only has v6 address and can only route to v6 destinations
b) A client only has v6 address but can route to dual-stack destinations using a network translator (such as NAT64)
From a client perspective, there is no difference between a) and b) - in both cases the client has no IPv4 address and all communications happen over IPv6 only.
put differently: "v6-only" only makes sense with regard to a specific machine, or set of load-balanced machines, or similar. If you bring in NAT64, forward proxies or similar, then "v6-only" as a term doesn't really make much sense anymore. That said, I'd call the combination of a "v6-only server" and a reverse proxy viewed as a whole dual-stacked.
However there might be additional services provided to allow access to non-IPv6-enabled destinations. It might be a service provided by the network (such as NAT64+DNS64) or it might be smth on a host itself (464XLAT).
Don't forget a forward proxy in the DMZ of the user. That's what you almost always find in enterprise environments. Cheers, Benedikt -- Benedikt Stockebrand, Stepladder IT Training+Consulting Dipl.-Inform. http://www.stepladder-it.com/ Business Grade IPv6 --- Consulting, Training, Projects BIVBlog---Benedikt's IT Video Blog: http://www.stepladder-it.com/bivblog/