In our ınfrastructure we use dual-stack. We configured our cluster firewall and router (BGPv6).
Now we have an application server whichs 's run only over IPv6 address. We want to connect this server over RDP service from our edge sites which's run on IPv4 public address. Is it possible ? If possible what we're supposed to do ?
If your firewall has NAT46 capability it is possible, but of all the possible NAT things you can try, that direction is the ugliest. The "right" answer is to dual-stack the edge networks, but that is presumably a long-run solution for you, not a short run one. I don't think RDP embeds IPv4 addresses in the content, so it can probably work. In general, doing protocol translation between IPv4 and IPv6 in either direction on things that aren't simple 1:1 TCP connections is a bad idea.