This Forum Beta is ONLY for registered owners of D-Link products in the USA for which we have created boards at this time.
The translation from external IP address to LAN side IP address is done by the main host router that had NAT. How NAT WorksMDL sort of handles the data like web browsing. Not dependent upon any ports or IPs being used. Just so long as NAT is single and cameras have access to the Internet with out any hindrances.