nowadays most of the LAN networks use NAT to link all the computers to the internet using only one External IP address. what if have only one computer and i want it to use that external ip address directly on it's interface without using NAT, PAT and PortForwarding as it's nowadays done for global IPV6 adddresses ??? how it can be technically done ??? is there additional devices that should be present to implement this solution or should the router be replaced by another equipment ???