C
HAPTER
5
| Gateway Configuration
NAT
– 38 –
192.168.7.9 on port 80. Therefore, by just using your external IP address
provided by your ISP, Internet users can access the services they need at
the local addresses to which you redirect them.
The more common TCP service port numbers include: HTTP: 80, FTP: 21,
Telnet: 23, and SSH: 22.
Figure 27: Port Mapping
The following parameters are displayed on this page:
◆
Private IP
– The IP address of the server on the local Ethernet
network. The specified address must be in the same subnet as the
RG231 and its DHCP server address pool. Alternatively, the IP address
can be set by selecting a PC from the DHCP client list. (Range:
192.168.1.1 to 192.168.1.254)
◆
Use Client List
– Allows the Private IP to be selected from the DHCP
client list.
◆
Private Port
– Specifies the TCP/UDP port number used on the local
server for the service. (Range: 1-65535)
◆
Public Port
– Specifies the public TCP/UDP port used for the service on
the WAN interface. (Range: 1-65535)
◆
Services
– Specifies port numbers for some of the more common
services. (Options: FTP, SSH, Telnet, SMTP, HTTP, HTTPS)
◆
Comment
– A text comment for the forwarding rule.
◆
Add Rules
– Adds the defined rule to the port forwarding table. Use
the Delete button next to a rule to remove it from the table.