Siemens SpeedStream 5450 User Manual page 65

5450 Four-Port Router User's Guide
Address Translation With NAPT
Many applications require special port access to the Internet in order to function. By enabling Network
Address Port Translation (NAPT), multiple computers in your home network have access to the Internet
by translating port addresses to an Internet IP address while masking their IP addresses from outside
users. Only TCP, UDP, and ICMP protocols support NAPT.
To enable and configure NAPT address translation:
1. Select Port By-Pass (NAPT) from the
2. Click the Configure hyperlink next to Port By-Pass (NAPT). This displays the "Port-By-Pass
Configuration" window.
3. To enable an application for NAPT, click the desired application from the Available Applications
list. The application is moved to the Enabled Applications list.
4. Optionally, click the Add a custom bypass entry hyperlink. This displays the advanced features on
the Port By-Pass Configuration" window. The advanced option allows you to configure special port
access to the Internet.
"Address Translation (NAT/NAPT)" window.
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Configuring Advanced Features