Advanced Settings Webpages; Nat - Philips CGA5722/05 User Manual

4.6 Advanced settings webpages

4.6.1 NAT

Network Address Translation allows multiple users to access the
Internet sharing one public IP.
Address Mapping:
Allows one or more public IP addresses to be shared by multiple
internal users. This also hides the internal network for increased privacy
and security. Enter the Public IP address you wish to share into the
Global IP field. Enter a range of internal IPs that will share the global IP
into the "from" field.
Virtual Server:
If you configure the ADSL Wireless Base Station as a virtual server,
remote users accessing services such as web or FTP at your local site
via 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 ADSL Wireless Base
Station redirects the external service request to the appropriate server
(located at another internal IP address).
Configuring the Wireless ADSL Modem Routerr
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.
A list of ports is maintained at the following link:
http://www.iana.org/assignments/ports-numbers
Special Applications
Some applications require multiple connections, such as Internet
gaming, video-conferencing, and Internet telephony.
These applications may not work when Network Address Translation
(NAT) is enabled. If you need to run applications that require multiple
connections, use these pages to specify the additional public ports to be
opened for each application.
NAT Mapping Table:
This page displays the current NAPT (Network Address Port
Translation) address mappings.
13