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4.6.

DHCP

4.6.1.

DHCP Settings

4.6.2.

DHCP Clients List

Display the state of assigned IP by DHCP Server.

4.6.3.

Address Reservation



Address Reservation: reserve IP address for designed physical address host. If you want

to configure a fixed IP address for some host, please input physical address and IP

address, then click add.

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4.7.

Forwarding

4.7.1.

Virtual Servers



Description: Describe current virtual server item.



Internal Host IP Address: The “Internal Host IP Address” indicates IP address of the

internal host using virtual server.



Protocol: The protocol item supplies several protocols. For example, if you have web

server within LAN, you can select the HTTP template then the router will input port

number 80 automatically.



External Port: Input an extranet port number (the users in Internet can see these ports).



Internal Port: Input an intranet port number.

4.7.2.

Port Triggering

Port trigger module dynamically registers virtual server rules when any IP host generates the

packet from the specified trigger protocol and port. Port trigger module use forward protocol

type and port number and use the IP address of host that generates the trigger packet when it

registers a rule.

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

Predefined Trigger Rules: select one of the Predefined Rules.



Rule Name: describe one Predefined Trigger that you will configure.



Trigger Protocol: you can select TCP/UDP.



Trigger Port: you can select a part of ports.



Forward Protocol: you can select TCP/UDP.



Forward Port: you can select a part of ports.

4.7.3.

DMZ

DMZ opens all the ports of one computer, exposing the computer to the Internet. So it should

only be used for some special-purpose, especial for Internet online games. Using this function

you can select “DMZ” item and input IP address of DMZ host, then click “Save”. For the

purpose of security, we suggested that using “Virtual servicer” instead of “DMZ”.

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4.7.4.

UPnP

The UPnP function supports load Application’s port forward record automatically. Select

“Enable” to enable this function.

4.7.5.

FTP Private Port

Some games, servers, and applications (such as BT, QQ video, Edunkey, Web server) are no

longer effect when behind the NAT router, so this item provides function of port mapping from

LAN to WAN.

4.8.

Security

4.8.1.

Security Settings

VPN is commonly used for encapsulate and encrypt data across the public network. For VPN

tunnel, the router supports IPSEC pass-through, PPTP pass-through and L2TP pass-through.

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4.8.2.

IP Address Filtering



Status: the default is disable. The rules of “Internet access control” based on source IP,

port number and protocol.



Description: describe IP Firewall list to tell from different IP Firewall lists.



Rule: you can select permit or deny. The default is permit.



Source IP address: input the source IP address that you want to control. The default

format is ***.***.***.***(e.g: 192.168.2.3).



Protocol and Port: If the rule has already existed in “Protocol Template”. You can select

appropriate item and apply it. Or you can input protocol type and port number manually,

click “add” button, then the item will displayed in the list.

Follow the following steps to set Internet Access Control:

1. You can select “enable” and click “Save” to enable “IP Firewall” function. This is only the

first step; you should continue to create appropriate rules for “IP Firewall”.

2. Input description information for current access control rule in the “Description” field. Input

IP address of host you want to restrict.

3. There are two items supplied, “Permit through the router for IP address listed, others are