Firewall - Single Port Forwarding - Cisco RV220W User Manual
Dual-band wireless vpn router with gbe switch
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Firewall - Single Port Forwarding
This is one of the NAPT (Network Address Port Translation) feature. Use the Single Port
Forwarding screen when you want to open specific services (that use single port). This allows
users on the Internet to access this server by using the WAN port address and the matched
external port number. When users send these types of request to your WAN port IP address via
the Internet, the NAT Router will forward those requests to the appropriate servers on your
LAN.
Single Port Forwarding
Application
Enter the name of the application you wish to configure.
This is the port number used by the service or Internet application.
External Port
Internet users must connect using this port number. Check with the
software documentation of the Internet application for more informa-
tion.
Internal Port
This is the port number used by the Router when forwarding Internet
traffic to the PC or server on your LAN and is usually the same as the
External Port number. If it is different, the Router performs a Port
Translation, so that the port number used by Internet users is different
from the port number used by the server or Internet application.
For example, you could configure your Web Server to accept connec-
tions on both port 80 (standard) and port 8080. Then, enable Port
Forwarding, set the External Port to 80 and the Internal Port to 8080.
Now, any traffic from the Internet to your Web server will be using
port 8080, even though the Internet users used the standard port, 80.
(Users on the local LAN can and should connect to your Web Server
Figure 33: Single Port Forwarding Screen
54
- Quick Links:
- Configuration Program
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