Accton Wireless Broadband Corp. FIU176205000W User Manual
System Configuration
5-44
5
WAN Multicast Routing — IP addresses of upstream multicast routers on the WAN
interface. You can add, edit, and delete IP addresses from the list.
• IP Address – Specifies an IP address to route to.
• Net Mask – Specifies a network mask.
interface. You can add, edit, and delete IP addresses from the list.
• IP Address – Specifies an IP address to route to.
• Net Mask – Specifies a network mask.
Firewall
The wireless AP/Router provides extensive firewall protection by restricting
connection parameters to limit the risk of intrusion and defending against a wide
array of common hacker attacks.
connection parameters to limit the risk of intrusion and defending against a wide
array of common hacker attacks.
NAT
Network Address Translation (NAT) is a standard method of mapping multiple
"internal" IP addresses to one "external" IP address on devices at the edge of a
network. For the wireless AP/Router, the internal (local) IP addresses are the IP
addresses assigned to PCs and wireless clients by the DHCP server, and the
external IP address is the IP address assigned to the WAN port.
"internal" IP addresses to one "external" IP address on devices at the edge of a
network. For the wireless AP/Router, the internal (local) IP addresses are the IP
addresses assigned to PCs and wireless clients by the DHCP server, and the
external IP address is the IP address assigned to the WAN port.
If you configure the wireless AP/Router as a virtual server, remote users accessing
services such as web or FTP at your local site through public IP addresses can be
automatically redirected to local servers configured with private IP addresses. In
other words, depending on the requested service (TCP/UDP port number), the
wireless AP/Router redirects the external service request to the appropriate server
(located at another internal IP address).
services such as web or FTP at your local site through public IP addresses can be
automatically redirected to local servers configured with private IP addresses. In
other words, depending on the requested service (TCP/UDP port number), the
wireless AP/Router redirects the external service request to the appropriate server
(located at another internal IP address).
For example, if you set Type/Public Port to TCP/80 (HTTP or web) and the Private
IP/Port to 192.168.2.2/80, then all HTTP requests from outside users will be
transferred to 192.168.2.2 on port 80. Therefore, by just entering the IP address
provided by the ISP, Internet users can access the service they need at the local
address to which you redirect them.
IP/Port to 192.168.2.2/80, then all HTTP requests from outside users will be
transferred to 192.168.2.2 on port 80. Therefore, by just entering the IP address
provided by the ISP, Internet users can access the service they need at the local
address to which you redirect them.
The more common TCP service port numbers include: HTTP: 80, FTP: 21,
Telnet: 23, and POP3: 110.
Telnet: 23, and POP3: 110.
Some applications, such as Internet gaming, videoconferencing, Internet telephony
and others, require multiple connections. These applications cannot work with
Network Address Translation (NAT) enabled. If you need to run applications that
require multiple connections, use port mapping to specify the additional public ports
to be opened for each application.
and others, require multiple connections. These applications cannot work with
Network Address Translation (NAT) enabled. If you need to run applications that
require multiple connections, use port mapping to specify the additional public ports
to be opened for each application.
Click "Network Settings" followed by "NAT."