ZyXEL nbg-4615 Betriebsanweisung

Chapter 23 Firewall

NBG4615 User’s Guide

See 

 for commonly used services and port numbers.

Dest IP Address Enter the IP address of the computer to which traffic for the application 

or service is entering. 

The NBG4615 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 NBG4615 applies the firewall rule to traffic initiating from this 
computer. 

Protocol

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

Dest Port Range Enter the port number/range of the destination that define the traffic 

type, for example TCP port 80 defines web traffic.

Source Port 
Range

Enter the port number/range of the source that define the traffic type, 
for example TCP port 80 defines web traffic.

Add Rule

Click Add 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.

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 (ALL,TCP, UDP or BOTH) 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.

Action

Drop - Traffic matching the conditions of the firewall rule are stopped.

Delete

Click Delete to remove the firewall rule.

Cancel

Click Cancel to start configuring this screen again. 

Table 72   Security > Firewall > Services (continued)