Zhone 6238-I2 User Manual page 36

Select the virtual server from the drop-down list and complete the server IP
address, then click on the Save/Apply button.
Port Triggering
Click on the Add button to add Port Triggering to your Internet application.
The following screen appears when you click on Add allowing you to select
the application that you want to set the port settings for. After a selection has
been made, click on the Save/Apply button.
36 6238 Wi-Fi Router with VOIP User's Guide 6238-A2-ZB20-10