User's Manual

Enterprise 5-Port 10/100/1000T VPN Security Router
VR-300 series
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Object
Description
Rule Name
Enter any words for recognition.
Protocol
Select the protocol type (TCP, UDP or both). If you are unsure,
please leave it to the default both protocols.
External Service Port
Enter the external ports you want to control. For TCP and UDP
services, enter the beginning of the range of port numbers used by
the service. If the service uses a single port number, enter it in both
the start and finish fields.
Virtual Server IP Address
Enter the local IP address.
Internal Service Port
Enter local ports you want to control. For TCP and UDP Services,
enter the beginning of the range of port numbers used by the
service. If the service uses a single port number, enter it in both the
start and finish fields.
4.6.6 DMZ
A Demilitarized Zone is used to provide Internet services without sacrificing unauthorized access to its
local private network as shown in Figure 4-46.Typically, the DMZ host contains devices accessible to
Internet traffic, such as Web (HTTP) servers, FTP servers, SMTP (e-mail) servers and DNS servers.
Figure 4-46: DMZ
Object
Description
DMZ
Set the function as enable or disable. If the DMZ function is enabled,
it means that you set up DMZ at a particular computer to be exposed
to the Internet so that some applications/software, especially
Internet/online game can have two way connections.