Zoom 4420-A - Manual (Page 50)

50 Zoom AP+4 User Guide
Port Forwarding
Port forwarding is a way of creating a tunnel through the AP+4’s
firewall so that computers on the Internet can communicate via a
single port to one of the computers on your LAN. Port forwarding
is safer than creating a DMZ – where all ports on one computer
inside the LAN are opened to all Internet traffic – because only
one port (or a small series of ports) is exposed to the Internet.
Parameter Select or enter . . .
Enable Port
Forwarding Select this check box to allow one or a small
number of ports on a network computer to be
opened to external Internet communication.
IP Address Enter the IP address of the network computer
allowed to receive direct Internet traffic.
Protocol Select TCP, UDP, or Both.
Port Range Enter one port or a small range of ports to
receive direct traffic.
Apply Changes Click this button to save your entries.
Reset Click this button to clear all entries.
Current Port Forwarding Table
Delete Selected In the Current Port Forwarding Table click
the Select check box for one or more IP
addresses and then click this button to delete.
Delete All Click this button to clear the table.
Reset Click to clear the Select check boxes.