ZyXEL Communications NBG-419N v2 User Manual page 156

Chapter 20 Firewall
Table 70 Security > Firewall > Services (continued)
LABEL
Enable Firewall Rule
Enable Firewall
Rule
Apply
Add Firewall Rule
Service Name
MAC Address
Dest IP Address Enter the IP address of the computer to which traffic for the application or service is
Source IP
Address
Protocol
Dest Port
Range
Source Port
Range
Add Rule
Firewall Rule
#
Service Name
MAC Address
Dest IP Address This is the IP address of the computer to which traffic for the application or service is
Source IP
Address
Protocol
Dest Port
Range
Source Port
Range
Action
Delete
Reset
See Appendix E on page 261
156
DESCRIPTION
Select this check box to activate the firewall rules that you define (see Add Firewall Rule
below)
Click Apply to save the settings.
Enter a name that identifies or describes the firewall rule.
Enter the MAC address of the computer for which the firewall rule applies.
entering.
The Router applies the firewall rule to traffic initiating from this computer.
Enter the IP address of the computer that initializes traffic for the application or service.
The Router applies the firewall rule to traffic initiating from this computer.
Select the protocol (TCP, UDP, ICMP or None) used to transport the packets for which you
want to apply the firewall rule.
Enter the port number/range of the destination that define the traffic type, for example TCP
port 80 defines web traffic.
Enter the port number/range of the source that define the traffic type, for example TCP port
80 defines web traffic.
Click Add to save the firewall rule.
This is your firewall rule number. The ordering of your rules is important as rules are applied
in turn.
This is a name that identifies or describes the firewall rule.
This is the MAC address of the computer for which the firewall rule applies.
entering.
This is the IP address of the computer from which traffic for the application or service is
initialized.
This is the protocol (TCP, UDP, ICMP or None) used to transport the packets for which you
want to apply the firewall rule.
This is the port number/range of the destination that define the traffic type, for example
TCP port 80 defines web traffic.
This is the port number/range of the source that define the traffic type, for example TCP
port 80 defines web traffic.
Drop - Traffic matching the conditions of the firewall rule are stopped.
Click this to remove the firewall rule.
Click Reset to start configuring this screen again.
for commonly used services and port numbers.
NBG-419N v2 User's Guide