ZyXEL P-663H-51 Guia Do Utilizador

Chapter 8 Security

P-663H-51 User’s Guide

To add an outgoing IP filtering rule, click Advanced Setup > Security > IP Filtering > 
Outgoing > Add. The screen appears as shown.

Figure 41   Advanced Setup > Security > IP Filtering > Outgoing > Add

The following table describes the labels in this menu.

By default, the ZyXEL Device blocks traffic from the Internet from going to the LAN. Use 
incoming IP filtering to allow certain traffic to come in from the Internet to the LAN. For 
example, you could allow access to a web server on your LAN to let people access a website 
that it is hosting. Click Advanced Setup > Security > IP Filtering > Incoming to open the 
following screen. This screen lists the currently configured filtering entries. 

Table 26   Advanced Setup > Security > IP Filtering > Outgoing > Add

Filter Name

Type the name configured to identify the filter entry.

Protocol

Select the type of packets to which this entry applies (TCP, UDP, or both).

Source IP 
Address 

Type the IP address of a LAN computer to which this entry applies.

Source 
Subnet 
Mask

Type the subnet mask of a LAN computer to which this entry applies.

Source Port

Type the source port for traffic (from the LAN) to which this entry applies.

Destination 
IP Address

This is the IP address and subnet mask of a computer on the Internet to which this entry 
applies.

Destination 
Subnet 
Mask

Type the subnet mask of a computer on the Internet to which this entry applies.

Destination 
Port

Type the destination port for traffic to which this entry applies.

Save/Apply

Click this button to save the changes and have the ZyXEL Device start using them.