DGS-3630 Series Layer 3 Stackable Managed Switch Web UI Reference Guide 
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Click the Apply button to accept the changes made. 
Click the Delete button to delete the specified entry. 
Enter a page number and click the Go button to navigate to a specific page when multiple pages exist. 
 
Null Interface 
This window is used to display and configure the Null interface settings. 
To view the following window, click L3 Features > Interface > Null Interface, as shown below: 
 
Figure 6-18 Null Interface Window 
 
The fields that can be configured are described below: 
Parameter  Description 
Interface Null 
Enter the Null interface ID here. This value can only be 0. 
Description 
After clicking the Edit button, enter the description for the Null interface here. This 
string can be up to 64 characters long. 
Click the Apply button to accept the changes made. 
Click the Edit button to modify the description for the Null interface. 
 
UDP Helper 
IP Forward Protocol 
This window is used to display and configure the IP forward protocol settings. This feature is used to enable the 
forwarding of a specific UDP service type of packets. 
To view the following window, click L3 Features > UDP Helper > IP Forward Protocol, as shown below: 
 
Figure 6-19 IP Forward Protocol Window