Grundig GD-RN-CT8832N User Manual page 162

Note:
You can use the default <Port No.> or change it according to actual requirements.
<External Port> indicates the <Port No.> for <Port Mapping> in the router.
The value of the <RTSP Port No.> should be <554> or between <1024> and <65535> while the value of the
other ports should be between <1> and <65535> and the value must be different from each other. If multiple
devices are configured for the <UPnP™ Settings> under the same router, the value of the <Port No.> for each
device should be unique.
3) Click the <Apply> button to save the settings.
4) You can click the <Refresh> button to get the latest status of the <Port Mapping>.
Manual Mapping:

If your router does not support the UPnP™ function, perform the following steps to map the port
manually in an easy way.
Before you start:
Make sure the router supports the configuration of the <Internal Port> and the <External Port> in the
interface of <Forwarding>.
Steps:
1. Enter the <Network Settings> interface.
2. Menu > Configuration > Network
3. Select the <NAT> tab to enter the port mapping interface.
External Port Settings Dialog Box
UPnP™ Settings Finished-Manual
162 ENGLISH