I have a machine running Windows server 2012, whose external IPv6 address is "2a01:4f8:190:7449::4". Let's assume it has no external IPv4 address, so the v6 address is the only way of accessing it from outside. But I have services running which are not compatible with IPv6. I want the machine to forward incoming traffic on "2a01:4f8:190:7449::4" to "127.0.0.1", and back. Is this possible?
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You'll want a HTTP proxy that runs on windows and speaks IPv4/IPv6. However, the premise is somewhat absurd -- at the very least you could give it an IPv4 address on the internal private network and arrange for IPv4 SNAT on your router...– Shadur-don't-feed-the-AIMar 29, 2015 at 15:03
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I need this to work for any TCP or UDP port, not just HTTP.– hammereditorMar 29, 2015 at 15:06
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Then you definitely want SNAT– Shadur-don't-feed-the-AIMar 29, 2015 at 20:30
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1 Answer
The technology you're looking for is called NAT64. Note that this will generally run on a router upstream of your IPv4-only service, rather than on the server itself. What to use to implement NAT64, and where in your network to put it, is going to depend on your existing network architecture and the services that need to be accessed using it.
Speaking of those services, if at all possible, they should be made IPv6-capable, or replaced.
answered Mar 29, 2015 at 17:25
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I'm afraid this won't work because I have a single dedicated server, not a whole network and a router. Mar 30, 2015 at 0:45
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You need to fix the service, then, whatever it is. As far as I know there is no NAT64 implementation for Windows. Mar 30, 2015 at 0:46