ZyXEL Communications NBG420N User Manual

 Chapter 17 Bandwidth Management

NBG420N User’s Guide

To edit a bandwidth management rule for the pre-defined service in the NBG420N, click the 
Edit icon in the Application List table of the Advanced screen. The following screen 
displays.

Figure 123   Bandwidth Management Rule Configuration: Pre-defined Service

The following table describes the labels in this screen.

If you want to edit a bandwidth management rule for other applications and/or subnets, click 
the Edit icon in the User-defined Service table of the Advanced screen. The following screen 
displays.

Table 77   Bandwidth Management Rule Configuration: Pre-defined Service

#

This is the number of an individual bandwidth management rule.

Enable

Select an interface’s check box to enable bandwidth management on that 

interface. 

Direction 

These read-only labels represent the physical interfaces. Bandwidth management 

applies to all traffic flowing out of the router through the interface, regardless of 

the traffic’s source.
Traffic redirect or IP alias may cause LAN-to-LAN traffic to pass through the 

NBG420N and be managed by bandwidth management.

Bandwidth

Select Maximum Bandwidth or Minimum Bandwidth and specify the maximum 

or minimum bandwidth allowed for the rule in kilobits per second. 

Destination Port

This is the port number of the destination. See 

common services and port numbers.

Source Port

This is the port number of the source. See 

 for some 

common services and port numbers.

Protocol

This is the protocol (TCP or UDP) used for the service.

OK

Click OK to save your customized settings.

Cancel

Click Cancel to exit this screen without saving.