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53 SBG1000 Wireless Cable Modem Gateway User Guide
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Configuration: Basic Gateway TCP/IP Wireless Print Server USB
Gateway > PORT TRIGGERS — predefined Page
When running an application on your PC that accesses the internet, the application typically initiates
communications with a computer on the internet. With certain applications, primarily gaming applications, the
computer on the internet also initiates communications with the application on your PC. Normally, NAT does not
allow this incoming communication. Port triggering is a mechanism that allows these incoming connections to
occur.
The SBG1000 is preconfigured with port triggering for common applications. You can also configure additional
port triggers if needed. To do so requires a technical understanding of how the application works. To configure port
triggers for an application you need to know the transport protocol (TCP or UDP) and the application port number
(which depends on the application you are using). You can use the default values for the remaining parameters.
If an application requires port triggering, only one PC attached to the SBG1000 can be using that application at
any given time.