Full Cone NAT (One-to-One NAT)

• is a type of Static NAT
• is the only type of NAT where the port is permanently open and allows inbound connections from any external host
• maps a (public IP address and port) to a (private IP and port)
• any external host can send data to the LAN’s private IP address through the mapped NAT’s public IP address and port. If it tries to send data through a different port it will fail
• this type of NAT is also known as port forwarding

Comparisons to Other NATs

see: Network Address Translation (NAT)