Comtrend Corporation AR-5381u User Manual page 57

Select a Service, then click the Save/Apply button.
One to One: mapping one local IP to a specific public IP
Many to One: mapping a range of local IP to a specific public IP
Many to Many(Overload): mapping a range of local IP to a different range of
public IP
Many to Many(No Overload): mapping a range of local IP to a same range of
public IP
56