ZyXEL Communications VSG1432-B101 Series Manual De Usuario

 Chapter 16 Firewall

VSG1432-B101 Series User’s Guide

Use this screen to set the security level of the firewall on the ZyXEL Device. 
Firewall rules are grouped based on the direction of travel of packets to which they 
apply. 

Click Security Settings > Firewall to display the following screen. 

Figure 92   Security Settings > Firewall

The following table describes the labels in this screen.

You can configure customized services and port numbers in the Protocol screen. 
For a comprehensive list of port numbers and services, visit the IANA (Internet 
Assigned Number Authority) website. See 

 for some 

examples. 

Table 65   Security Settings > Firewall

Low

Select Low to allow LAN to WAN and WAN to LAN packet directions.

Medium

Select Medium to allow LAN to WAN but deny WAN to LAN packet 
directions.

High

Select High to deny LAN to WAN and WAN to LAN packet directions.

Apply

Click Apply to save your changes.

Cancel

Click Cancel to restore your previously saved settings.