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3.4.5 Port Forwarding
When NAT mode is enabled as the WAN interface type
communication request from one address and port number combination to another. Only
the IP address on the WAN side is open to the Internet. If a computer on the LAN is enabled
to provide services for the Internet (for example, work as an FTP server), port forwarding is
required so that all access requests to the external server port from the Internet are
redirected to the server on the LAN.
To add a port forwarding rule, select the Enable check box and click on ADD LIST (Figure
3-29). Enter the parameters per the field descriptions in Table 3-4.
Figure 3-29 Port Forwarding
Table 3-4 Port Forwarding
Field Name
Description
Service Type
Select the type of service, either Custom, DNS, FTP, IPSec, POP3,
SMTP, PPTP, Realplay, SSH, HTTPs, SNMP, SNMP Trap, Telnet,
TFTP, or HTTP
Protocol
Select the type of data protocol, either TCP, UDP, or TCP&UDP
Remote Port
Enter the port number range for the remote device in the format of
Range
1000 to 1500
Local Host
Enter the local host IP address. The address must be different from
the IP address that is set for the LAN Host Settings parameter, but
(section
2.2.2), you can redirect a
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