We have Oracle instance with encryption network connections configured on it in corporate network (172 network). We have appropriate Internet address (registered address) for that box to connect to the box from the outside of the firewall. We have Oracle names server inside corporate network (172 network).
Is there any way for a client to connect to that box from the Internet? I can see after connect request coming to the Oracle Listener it makes request back to the client on port 1390. Does anybody have experience with such kind network configuration?