Yes there is, you have the device the software is on do the translation transparently. The software thinks its talking to 1.2.3.4, it's actually talking to ::ff

Yes there is, you have the device the software is on do the translation transparently. The software thinks its talking to 1.2.3.4, it's actually talking to ::ffff:1.2.3.4, but the application doesn't need to know that as the translation is occuring in the network stack (driver, module, whatever). > There are lots of places that have IPv6-only networks and access IPv4 through NAT64 I've just deployed a new mostly internal network, and this was my plan. The network itself worked, but the applications wouldn't. Most required applications could cope, but not all, meaning I need to deploy ipv4, meaning that there's no point in deploying ipv6 as well as ipv4, just increases the maintenance and security for no business benefits.