May 25

1.DIR-855 Media Router PPTP Setup

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Choose PPTP (Point-to-Point-Tunneling Protocol ) if your ISP uses a PPTP connection. Your ISP will provide you with a username and password. This option is typically used for DSL services.

Address Mode:Select Static if your ISP assigned you the IP address, subnet mask, gateway, and DNS server addresses. In most cases, select Dynamic.

PPTP IP Address:Enter the IP address (Static PPTP only).

PPTP Subnet Mask:Enter the Primary and Secondary DNS Server Addresses (Static PPTP only).

PPTP Gateway:Enter the Gateway IP Address provided by your ISP.

PPTP Server IP:Enter the Server IP provided by your ISP (optional).

Username:Enter your PPTP username.

Password:Enter your PPTP password and then retype the password in the next box.

Reconnect Mode:Select either Always-on, On-Demand, or Manual.

Maximum Idle Time:Enter a maximum idle time during which the Internet connection is maintained during inactivity. To disable this feature, enable Auto-reconnect.

DNS Servers:The DNS server information will be supplied by your ISP (Internet Service Provider.)

MTU:Maximum Transmission Unit – you may need to change the MTU for optimal performance with your specific ISP. 1400 is the default MTU.

MAC Address:The default MAC Address is set to the Internet port’s physical interface MAC address on the Broadband Router. It is not recommended that you change the default MAC address unless required by your ISP. You can use the Clone Your PC’s MAC Address button to replace the Internet port’s MAC address with the MAC address of your Ethernet card.

2.DIR-855 Media Router L2TP Setup

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Choose L2TP (Layer 2 Tunneling Protocol) if your ISP uses a L2TP connection. Your ISP will provide you with a username and password. This option is typically used for DSL services.

Address Mode:Select Static if your ISP assigned you the IP address, subnet mask, gateway, and DNS server addresses. In most cases, select Dynamic.

L2TP IP Address:Enter the L2TP IP address supplied by your ISP (Static only).

L2TP Subnet Mask:Enter the Subnet Mask supplied by your ISP (Static only).

L2TP Gateway:Enter the Gateway IP Address provided by your ISP.

L2TP Server IP:Enter the Server IP provided by your ISP (optional).

Username:Enter your L2TP username.

Password:Enter your L2TP password and then retype the password in the next box.

Reconnect Mode:Select either Always-on, On-Demand, or Manual.

Maximum Idle Time:Enter a maximum idle time during which the Internet connection is maintained during inactivity. To disable this feature, enable Auto-reconnect.

DNS Servers:Enter the Primary and Secondary DNS Server Addresses (Static L2TP only).

MTU:Maximum Transmission Unit – you may need to change the MTU for optimal performance with your specific ISP. 1400 is the default MTU.

Clone MAC Address:The default MAC Address is set to the Internet port’s physical interface MAC address on the Broadband Router. It is not recommended that you change the default MAC address unless required by your ISP. You can use the Clone Your PC’s MAC Address button to replace the Internet port’s MAC address with the MAC address of your Ethernet card.

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May 25

D-Link DIR-855 Media Router Network Diagram

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Wireless Installation Considerations

The D-Link wireless router lets you access your network using a wireless connection from virtually anywhere within the operating range of your wireless network. Keep in mind, however, that the number, thickness and location of walls, ceilings, or other objects that the wireless signals must pass through, may limit the range. Typical ranges vary depending on the types of materials and background RF (radio frequency) noise in your home or business. The key to maximizing wireless range is to follow these basic guidelines:

1. Keep the number of walls and ceilings between the D-Link router and other network devices to a minimum – each wall or ceiling can reduce your adapter’s range from 3-90 feet (1-30 meters.) Position your devices so that the number of walls or ceilings is minimized.

2. Be aware of the direct line between network devices. A wall that is 1.5 feet thick (.5 meters), at a 45-degree angle appears to be almost 3 feet (1 meter) thick. At a 2-degree angle it looks over 42 feet (14 meters) thick! Position devices so that the signal will travel straight through a wall or ceiling (instead of at an angle) for better reception.

3. Building Materials make a difference. A solid metal door or aluminum studs may have a negative effect on range. Try to position access points, wireless routers, and computers so that the signal passes through drywall or open doorways. Materials and objects such as glass, steel, metal, walls with insulation, water (fish tanks), mirrors, file cabinets, brick, and concrete will degrade your wireless signal.

4. Keep your product away (at least 3-6 feet or 1-2 meters) from electrical devices or appliances that generate RF noise.

5. If you are using 2.4GHz cordless phones or X-10 (wireless products such as ceiling fans, lights, and home security systems), your wireless connection may degrade dramatically or drop completely. Make sure your 2.4GHz phone base is as far away from your wireless devices as possible. The base transmits a signal even if the phone in not in use.

Connect to Cable/DSL/Satellite Modem

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If you are connecting the router to a cable/DSL/satellite modem, please follow the steps below:

1. Place the router in an open and central location. Do not plug the power adapter into the router.

2. Turn the power off on your modem. If there is no on/off switch, then unplug the modem’s power adapter. Shut down your computer.

3. Unplug the Ethernet cable (that connects your computer to your modem) from your computer and place it into the Internet port on the router.

4. Plug an Ethernet cable into one of the four LAN ports on the router. Plug the other end into the Ethernet port on your computer.

5. Turn on or plug in your modem. Wait for the modem to boot (about 30 seconds).

6. Plug the power adapter to the router and connect to an outlet or power strip. Wait about 30 seconds for the router to boot.

7. Turn on your computer.

8. Refer to page 13 to configure your router.

Connect to Another Router

If you are connecting the D-Link router to another router to use as a wireless access point and/or switch, you will have to do the following before connecting the router to your network:

• Disable UPnP™

• Disable DHCP

• Change the LAN IP address to an available address on your network. The LAN ports on the router cannot accept a

DHCP address from your other router.

To connect to another router, please follow the steps below:

1. Plug the power into the router. Connect one of your computers to the router (LAN port) using an Ethernet cable. Make sure your IP address on the computer is 192.168.0.xxx (where xxx is between 2 and 254). Please see the Networking Basics section for more information. If you need to change the settings, write down your existing settings before making any changes. In most cases, your computer should be set to receive an IP address automatically in which case you will not have to do anything to your computer.

2. Open a web browser and enter http://www.dlink.cc and press Enter. When the login window appears, set the user name to Admin and leave the password box empty. Click Log In to continue.

3. Click on Advanced and then click Advanced Network. Uncheck the Enable UPnP checkbox. Click Save Settings to continue.

4. Click Setup and then click Network Settings. Uncheck the Enable DHCP Server checkbox. Click Save Settings to continue.

5. Under Router Settings, enter an available IP address and the subnet mask of your network. Click Save Settings to save your settings. Use this new IP address to access the configuration utility of the router in the future. Close the browser and change your computer’s IP settings back to the original values as in Step 1.

6. Disconnect the Ethernet cable from the router and reconnect your computer to your network.

7. Connect an Ethernet cable in one of the LAN ports of the router and connect it to your other router. Do not plug anything into the Internet port of the D-Link router.

8. You may now use the other 3 LAN ports to connect other Ethernet devices and computers. To configure your wireless network, open a web browser and enter the IP address you assigned to the router. Refer to the Configuration and Wireless Security sections for more information on setting up your wireless network.

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Aug 25

To allow traffic from the Internet to your local network, you will need to open up ports or the router will block the request.

Because our routers use NAT (Network Address Translation), you can only open a specific port or ports to one computer at a time. For example: If you have 2 web servers on your network, you cannot open port 80 to both computers. You will need to configure 1 of the web servers to use port 81 (or any other non-80 port). Now you can open port 80 to the first computer and then open port 81 to the other computer.

Step 1: Open your web browser and type in the IP address of the router (192.168.0.1 by default)and hit Enter.

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Step 2: Enter the username (admin) and password (blank by default), and then click Log In.

Step 3: Click on the Advanced tab along the top and then click on Port Forwarding on the left-hand side.

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Step 4: Next to IP Address, enter the IP address of the computer, or select your computer from the drop down box and click the arrow (<<) button.

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Step 5: Enter a Name for your Port Forwarding entry.

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Note: The Application Name drop down menu contains a list of predefined server types. If you select one of the predefined server types, click the arrow button next to the drop down menu to fill out the corresponding field. This will also fill in the TCP Port and UDP Port. If you choose this option, skip to Step 7.

Step 6: Enter the port information under TCP Port and/or UDP Port.

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Note: This feature allows you to open a range of TCP and/or UDP ports to a computer on your network. Separate multiple port entries by a comma (,) (Ex. 88,3074), and a dash (-) for a range of port entries (Ex. 1500-4999) . To open a single port using this feature, simply enter the same number in both the TCP and UDP fields.

Choose the Schedule from the drop down menu.

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Note: This will be the schedule of time when the Port Forwarding Rule will be active. Schedules can be defined on the Tools>Schedules page.

Step 8: Next to that, choose the Inbound Filter from the drop down menu and select a filter that controls access as needed for this rule. If you do not see the filter you need in the list of filters, go to the Advanced>Inbound Filter screen and create a new filter.

Note: The Inbound Filter option is an advanced method of controlling data received from the Internet. With this feature you can configure inbound data filtering rules that control data based on an IP address range. Inbound Filters can be used for limiting access to a server on your network to a system or group of systems.

Step 9: Click the check box to activate the entry.

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Step 10: Click Save Settings at the top to save your changes.

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Feb 01

DIR-855 Product summary

The good: True dual-band; great throughput performance; intuitive and responsive browser interface; gigabit LAN and WAN; easy to set up; supports separate wireless networks for guests; network activity display offers quick access to a variety of network information; convenient preset settings.

The bad: Middling range; confusing network activity display; expensive; bulky design; no print-serving or NAS functionality.

The bottom line: The D-Link Xtreme N Duo Media Router DIR-855 is a stable performer with excellent Web interface. But because it comes in a bulky, old-school design, has a relatively short range, and carries a hefty price tag, consider waiting for the price to drop before investing in this router.

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DIR-855 Description

Out of the box, the D-Link DIR-855 looks like a differently colored D-Link DGL-4500 . (The DIR-855 is white, while the DGL-4500 is dark blue.) The DIR-855 has three antennas attached to the back of the router–not a good design, as they crowd the network ports. The antennae are, however, removable, in case you need to install an external high-power antenna for longer range. Like most D-Link routers, the DIR-855 is wall-mountable and also comes with a vertical mount base. Similar to the DGL-4500, the DIR-855 has a top-mounted, organic light-emitting diode (OLED) Network Activity Display (ONAD) that shows more than just the network’s connection status–the two navigation buttons display WAN, LAN, and wireless information via the little blue screen. However, in our tests, the screen timed out after a minute or two. The ONAD is fun to play around with at first, and is indeed useful in a number of situations, such as checking on the Internet connection, number of wireless clients, and so on, but in the long term, you might miss the regular LED status light found on most routers.

Like the name suggests, the D-Link DIR-855 comes with two Draft N 2.0 access points. One of them uses the ubiquitous 2.4Ghz frequency, while the other works in the new 5Ghz frequency; the two can run simultaneously. This is the first router from D-Link that offers true dual-band operation.

The DIR-855 gave a mixed performance in our tests. On our maximum throughput test, the router registered 101.7Mbps and 77Mbps for the 5Ghz frequency and 2.4Ghz frequency, respectively–both high, though not perfect, scores that bested the LinksysWRT610N, which came in at 101Mbps and 53.3Mbps.

User Reviews

azz710 said:Excellent wireless speed and reach. Excellent performance, in general. Fast, simple web-based configuration. Stable operation (no memory leaks, no need for periodic rebooting as with many other home routers).If you have the cash, buy this router and you will probably discover it will be the last router you buy for many, many years.

inachu1 said:Solid wifi connections at all hours of the day suing any channels.Routers menu system is a pain to learn and memorize.This router is what separates the trash from class series of home routers
I am very impressed not having ay dropped wifi connections for more than 6 weeks in a row. If you are conecerned about uptime then let this be your purchase.

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