ZyXEL nbg-5715 用户指南
Chapter 17 Firewall
NBG5715 User’s Guide
123
See
Source IP Address Enter the IP address of the computer that initializes traffic for the application or
service.
The NBG5715 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.
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.
example TCP port 80 defines web traffic.
Source Port
Range
Range
Enter the port number/range of the source that define the traffic type, for
example TCP port 80 defines web traffic.
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.
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.
service is entering.
Source IP
This is the IP address of the computer from which traffic for the application or
service is initialized.
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.
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.
example TCP port 80 defines web traffic.
Source Port
Range
Range
This is the port number/range of the source that define the traffic type, for
example TCP port 80 defines web traffic.
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.
Reset
Click Reset to start configuring this screen again.
Table 52
Security > Firewall > Services (continued)
LABEL
DESCRIPTION