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devices in your wireless network.



Preamble Type: "Short Preamble" is suitable for heavy traffic wireless network. "Long

Preamble" provides much communication reliability; the default setting is "Long

Preamble”.

4.5.6.

Wireless Statistics

Display current status of the wireless client associate with AP.

Figure 4-32

4.5.7.

Multiple AP Settings

The default status of secondary AP is disable, you can select enable to enable the secondary

AP. Please refer to

Quick SetupWireless Security

and

Wireless Statistics

for details.

Figure 4-33

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4.6.

DHCP

4.6.1.

DHCP Settings

Figure 4-34

4.6.2.

DHCP Clients List

Display the state of assigned IP by DHCP Server.

Figure 4-35

4.6.3.

Address Reservation

Figure 4-36



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

Figure 4-37



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 IPaddress of host that generates the trigger packet when it

registers a rule.

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Figure 4-38



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”.

Figure 4-39

4.7.4.

UPnP

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

“Enable” to enable this function.

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Figure 4-40

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.

Figure 4-41

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.

Figure 4-42