ZyXEL Communications EMG5324-D10A ユーザーズマニュアル

 Chapter 13 Firewall

EMG5324-D10A User’s Guide

Click Security > Firewall > Access Control to display the following screen. This screen displays a 
list of the configured incoming or outgoing filtering rules. 

Security > Firewall > Access Control 

The following table describes the labels in this screen. 

Protocol 
Number

This field is displayed if you select Other as the protocol.

Enter the protocol number of your customized port. 

Source/
Destination Port

These fields are displayed if you select TCP or UDP as the IP port. 

Select Single to specify one port only or Range to specify a span of ports that define your 
customized service. If you select Any, the service is applied to all ports.

Type a single port number or the range of port numbers that define your customized 
service.

Apply

Click Apply to save your changes.

Back

Click Back to exit this screen without saving.

Service: Add/Edit (continued)

Security > Firewall > Access Control

Add new ACL 
rule

Click this to go to add a filter rule for incoming or outgoing IP traffic.

Name

This displays the name of the rule.

Src IP 

This displays the source IP addresses to which this rule applies. Please note that a blank 
source address is equivalent to Any.

Dst IP

This displays the destination IP addresses to which this rule applies. Please note that a 
blank destination address is equivalent to Any.

Services

This displays the transport layer protocol that defines the service and the direction of traffic 
to which this rule applies. 

Policy

This field displays whether the rule silently discards packets (DROP), discards packets and 
sends a TCP reset packet or an ICMP destination-unreachable message to the sender 
(REJECT) or allows the passage of packets (ACCEPT).

Modify

Click the Edit icon to edit the rule.

Click the Delete icon to delete an existing rule. Note that subsequent rules move up by one 
when you take this action.