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After configure Rule 1
Schedule Enable
Selected if you want to Enable the Scheduler.
Edit
To edit the schedule rule.
Delete
To delete the schedule rule, and the rule# of the rules behind the deleted one will decrease one automatically.
Schedule Rule can be apply to Virtual server and Packet Filter, for example:
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Exanple1:
Virtual Server
–
Apply Rule#1 (ftp time: everyday 14:10 to 16:20)
Exanple2:
Packet Filter
–
Apply Rule#1 (ftp time: everyday 14:10 to 16:20).
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38
4.4.8 Virtual Server
This product
’
s NAT firewall filters out unrecognized packets to protect your Intranet, so all hosts behind this product
are invisible to the outside world. If you wish, you can make some of them accessible by enabling the Virtual Server
Mapping.
A virtual server is defined as a
Service Port
, and all requests to this port will be redirected to the computer specified
by the
Server IP
.
Virtual Server
can work with
Scheduling Rules
, and give user more flexibility on Access
control. For Detail, please refer to
Scheduling Rule
.
For example, if you have an FTP server (port 21) at 192.168.1.1, a Web server (port 80) at 192.168.1.2, and a VPN
server at 192.168.1.6, then you need to specify the following virtual server mapping table:
Service Port
Server IP
Enable
21
192.168.1.1
V
80
192.168.1.2
V
1723
192.168.1.6
V
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4.4.9 DMZ
IP Address of DMZ Host
DMZ (DeMilitarized Zone) Host is a host without the protection of firewall. It allows a computer to be exposed to
unrestricted 2-way communication for Internet games, Video conferencing, Internet telephony and other special
applications.
NOTE: This feature should be used only when needed.
Non-standard FTP port
You have to configure this item if you want to access an FTP server whose port number is not 21. This setting will be
lost after rebooting.
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4.4.10 Special AP
Some applications require multiple connections, like Internet games, Video conferencing, Internet telephony, etc.
Because of the firewall function, these applications cannot work with a pure NAT router. The
Special Applications
feature allows some of these applications to work with this product. If the mechanism of Special Applications fails to
make an application work, try setting your computer as the
DMZ
host instead.
1.
Trigger
: the outbound port number issued by the application..
2.
Incoming Ports
: when the trigger packet is detected, the inbound packets sent to the specified port numbers are
allowed to pass through the firewall.
This product provides some predefined settings Select your application and click
Copy
to
to add the predefined
setting to your list.
Note! At any given time, only one PC can use each Special Application tunnel.
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