19216811.liveChapter 19 Firewall
NBG-419N User’s Guide
146
See
Appendix E on page 259
for commonly used services and port numbers.
Enable Firewall
Rule
Select this check box to activate the firewall rules that you define (see
Add
Firewall Rule
below)
Apply
Click
Apply
to save the settings.
Add Firewall Rule
Service Name
Enter a name that identifies or describes the firewall rule.
MAC Address
Enter the MAC address of the computer for which the firewall rule applies.
Dest IP Address
Enter the IP address of the computer to which traffic for the application or
service is entering.
The NBG-419N 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 NBG-419N applies the firewall rule to traffic initiating from this computer.
Protocol
Select the protocol (
TCP
,
UDP
,
ICMP
or
None
) 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.
MAC Address
This is the MAC address of the computer for which the firewall rule applies.
Dest IP Address
This is the IP address of the computer to which traffic for the application or
service is entering.
Source IP Address
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
,
ICMP
or
None
) 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 this to remove the firewall rule.
Reset
Click
Reset
to start configuring this screen again.
Table 64
Security > Firewall > Services
LABEL
DESCRIPTION