ZyXEL Communications Corporation EMG2881-T20A Benutzerhandbuch

 Chapter 10 Security

EMG2881-T20A User’s Guide

This chapter shows you how to enable and create IPv6 firewall rules to filter IPv6 traffic.

Dest IP Address

Enter the IP address of the computer to which traffic for the application or service is entering. 

The EMG2881-T20A applies the firewall rule to traffic initiating from this computer. 

Source IP Address

Enter the IP address of the computer that initializes traffic for the application or service.

The EMG2881-T20A applies the firewall rule to traffic initiating from this computer.

Protocol 

Select the protocol (TCP, UDP or ICMP) used to transport the packets for which you want to 
apply the firewall rule.

Dest Port Range

This is the port number/range of the destination that define the traffic type, for example TCP 
port 80 defines web traffic.

Source Port Range This is the port number/range of the source that define the traffic type, for example TCP port 

80 defines web traffic.

Add Rule

Click Add Rule to save the firewall rule. 

Firewall Rule

#

This is your firewall rule number. The ordering of your rules is important as rules are applied in 
turn. 

Service Name

This is a name that identifies or describes the firewall rule.

MAC address

This is the MAC address of the computer for which the firewall rule applies.

Dest IP

This is the IP address of the computer to which traffic for the application or service is entering. 

Source IP

This is the IP address of the computer from which traffic for the application or service is 
initialized. 

Protocol

This is the protocol (TCP, UDP or ICMP) used to transport the packets for which you want to 
apply the firewall rule. 

Dest Port Range

This is the port number/range of the destination that define the traffic type, for example TCP 
port 80 defines web traffic.

Source Port Range This is the port number/range of the source that define the traffic type, for example TCP port 

80 defines web traffic.

Delete

Click 

 to remove the firewall rule.

Apply

Click Apply to save the settings. 

Cancel

Click Cancel to start configuring this screen again. 

Table 40   Configuration > Security > IPv4 Firewall  (continued)