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D-Link DIR-6±5 User Manual

Section ² - Configuration

SPI (Stateful Packet Inspection, also known as dynamic packet

filtering) helps to prevent cyber attacks by tracking more state per

session. It validates that the traffic passing through the session

conforms to the protocol.

Select one of the following for TCP and UDP ports:

Endpoint Independent

- Any incoming traffic sent to an open port

will be forwarded to the application that opened the port. The port

will close if idle for 5 minutes.

Address Restricted

- Incoming traffic must match the IP address

of the outgoing connection.

Address + Port Restriction

- Incoming traffic must match the IP

address and port of the outgoing connection.

If an application has trouble working from behind the router, you

can expose one computer to the Internet and run the application

on that computer.

Note:

Placing a computer in the DMZ may expose that computer to

a variety of security risks. Use of this option is only recommended

as a last resort.

Specify the IP address of the computer on the LAN that you want to

have unrestricted Internet communication. If this computer obtains

it’s IP address automatically using DHCP, be sure to make a static

reservation on the Basic > DHCP page so that the IP address of

the DMZ machine does not change.

Enable SPI:

NAT Endpoint

Filtering:

Enable DMZ Host:

IP Address:

Firewall Settings

A firewall protects your network from the outside world. The D-Link DIR-625 offers a firewall type functionality. The SPI

feature helps prevent cyber attacks. Sometimes you may want a computer exposed to the outside world for certain

types of applications. If you choose to expose a computer, you cam enable DMZ. DMZ is short for Demilitarized Zone.

This option will expose the chosen computer completely to the outside world.

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D-Link DIR-6±5 User Manual

Section ² - Configuration

Application Level Gateway (ALG) Configuration

Here you can enable or disable ALG’s. Some protocols and applications require special handling of the IP payload to

make them work with network address translation (NAT). Each ALG provides special handling for a specific protocol

or application. A number of ALGs for common applications are enabled by default.

Allows multiple machines on the LAN to connect to their corporate network using PPTP protocol.

Allows multiple VPN clients to connect to their corporate network using IPSec. Some VPN clients support traversal of IPSec

through NAT. This ALG may interfere with the operation of such VPN clients. If you are having trouble connecting with your

corporate network, try turning this ALG off. Please check with the system adminstrator of your corporate network whether

your VPN client supports NAT traversal.

Allows applications that use Real Time Streaming Protocol to receive streaming media from the internet. QuickTime and

Real Player are some of the common applications using this protocol.

Allows all of the Windows/MSN Messenger functions to work properly through the router.

Allows FTP clients and servers to transfer data across NAT. Refer to the Advanced > Virtual Server page if you want to

host an FTP server.

Allows Microsoft NetMeeting clients to communicate across NAT. Note that if you want your buddies to call you, you should

also set up a virtual server for NetMeeting. Refer to the Advanced > Virtual Server page for information on how to set up

a virtual server.

Allows devices and applications using VoIP (Voice over IP) to communicate across NAT. Some VoIP applications and devices

have the ability to discover NAT devices and work around them. This ALG may interfere with the operation of such devices.

If you are having trouble making VoIP calls, try turning this ALG off.

Allows Ethernet network adapters with Wake-On-LAN (WOL) to function.

Allows Windows Media Player, using MMS protocol, to receive streaming media from the Internet.

PPTP:

IPSEC (VPN):

RTSP:

MSN Messenger:

FTP:

H.323

(Netmeeting):

SIP:

Wake-On-LAN:

MMS:

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D-Link DIR-6±5 User Manual

Section ² - Configuration

Set the transmit power of the antennas.

Beacons are packets sent by an Access Point to

synchronize a wireless network. Specify a value.

100 is the default setting and is recommended.

This value should remain at its default setting of

2432. If inconsistent data flow is a problem, only a

minor modification should be made.

The fragmentation threshold, which is specified

in bytes, determines whether packets will be

fragmented. Packets exceeding the 2346 byte

setting will be fragmented before transmission. 2346

is the default setting.

(Delivery Traffic Indication Message) 3 is the default

setting. A DTIM is a countdown informing clients

of the next window for listening to broadcast and

multicast messages.

This enables 802.11d opration. 802.11d is a wireless specification developed to allow implementation of wireless networks in

countries that cannot use the 802.11 standard. This feature should only be enabled if you are in a country that requires it.

WMM is QoS for your wireless network. Enable this option to improve the quality of video and voice applications for your

wireless clients.

Check this box to reduce the guard interval time therefore increasing the data capacity.

However, it’s less reliable and may

create higher data loss.

Transmit Power:

Beacon Period:

RTS Threshold:

Fragmentation

Threshold:

DTIM Interval:

802.11d:

WMM Function:

Short GI:

Advanced Wireless Settings

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D-Link DIR-6±5 User Manual

Section ² - Configuration

To use the Universal Plug and Play (UPnP

™

)

feature click on

Enabled

. UPNP provides

compatibility with networking equipment, software

and peripherals.

Unchecking the box will not allow the DIR-625 to

respond to pings. Blocking the Ping may provide

some extra security from hackers. Check the box

to allow the Internet port to be “pinged”.

You may set the port speed of the Internet port

to 10Mbps, 100Mbps, or auto. Some older cable

or DSL modems may require you to set the port

speed to 10Mbps.

Check the box to allow multicast traffic to pass

through the router from the Internet.

UPnP Settings:

Internet Ping:

Internet Port

Speed:

Multicast

streams:

Advanced Network Settings

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D-Link DIR-6±5 User Manual

Section ² - Configuration

Enter a new password for the Administrator Login Name. The

administrator can make changes to the settings.

Enter the new password for the User login. If you login as

the User, you can only see the settings, but cannot change

them.

Enter a name for the DIR-625 router.

Remote management allows the DIR-625 to be configured

from the Internet by a web browser. A username and

password is still required to access the Web-Management

interface. In general, only a member of your network can

browse the built-in web pages to perform Administrator tasks.

This feature enables you to perform Administrator tasks from

the remote (Internet) host.

The port number used to access the DIR-625.

Example: http://x.x.x.x:8080 whereas x.x.x.x is the Internet

IP address of the DIR-625 and 8080 is the port used for the

Web Management interface.

This section will list any rules that are created. You may click

the

Edit

icon to change the settings or enable/disable the

rule, or click the

Delete

icon to remove the rule.

Admin Password:

User Password:

Gateway Name:

Remote

Management:

Remote Admin

Port:

Inbound Filter:

Administrator Settings

This page will allow you to change the Administrator and User passwords. You can also enable Remote Management.

There are two accounts that can access the management interface through the web browser. The accounts are admin

and user. Admin has read/write access while user has read-only access. User can only view the settings but cannot

make any changes. Only the admin account has the ability to change both admin and user account passwords.

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