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Advanced > Virtual Server

Using the Configuration Menu (continued)

The DI-774 can be configured as a virtual server so that remote users accessing Web
or FTP services via the public IP Address can be automatically redirected to local
servers in the LAN (Local Area Network).

The DI-774 firewall feature filters out unrecognized packets to protect your LAN
network so all computers networked with the DI-774 are invisible to the outside world.
If you wish, you can make some of the LAN computers accessible from the Internet
by enabling

Virtual Server.

Depending on the requested service, the DI-774 redirects

the external service request to the appropriate server within the LAN network.

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Содержание Air Xpert DI-774

Страница 1: ...2 4 GHz 5 GHz Tri Mode Dualband Manual Building Networks for People D Link Air Xpert DI 774 Wireless Router ...

Страница 2: ...tions 5 Features 6 LEDs 7 Wireless Basics 8 Getting Started 10 Using the Configuration Menu 11 Networking Basics 40 Troubleshooting 55 Technical Specifications 61 FrequentlyAsked Questions 64 Contacting Technical Support 92 Warranty and Registration 93 ...

Страница 3: ...ackage Contents Computer with Windows Macintosh or Linux based operating system with an installed Ethernet adapter Note Using a power supply with a different voltage rating than the one included with the DI 774 will cause damage and void the warranty for this product If any of the above items are missing please contact your reseller System Requirements For Configuration ...

Страница 4: ...fied document transfer and communications With the DI 774 you can securely connect to wireless clients on the network using 802 1x for wireless user authentication as well as WPA Wi Fi Protected Access providing you a much higher level of security for your data and communications than has previously been available Through its easy to use Web based user interface the DI 774 lets you control the inf...

Страница 5: ...ssover Ethernet cable Auto MDI MDIX LAN ports automatically sense the cable type when connecting to Ethernet enabled computers TheAuto MDI MDIX WAN port is the connection for the Ethernet cable to the Cable or DSL modem Receptor for the Power Adapter Pressing the Reset Button restores the router to its original factory default settings ...

Страница 6: ...gy Orthogonal Frequency Division Multiplexing to ensure strong wireless signals for both 802 11g and 802 11a 802 1x Authentication in conjunction with the RADIUS server verifies the identity of would be clients WPA Wi Fi Protected Access authorizes and identifies users based on a secret key that changes automatically at a regular interval for example Backwards compatible with the 802 11b standard ...

Страница 7: ...LEDs blink during wireless data transmission WAN LED A solid light indicates connec tion on the WAN port This LED blinks during data transmission Local Network LEDs A solid light indicates a connection to an Ethernet enabled computer on ports 1 4 The LEDs blink during data transmis sion Status A blinking light indicates that the DI 774 is ready Power A solid light indicates a proper connection to ...

Страница 8: ...wireless LAN technology for many different purposes Mobility Productivity increases when people have access to data in any location within the operating range of the WLAN Management decisions based on real time information can significantly improve worker efficiency Low Implementation Costs WLANs are easy to set up manage change and relocate Networks that frequently change can benefit from WLANs e...

Страница 9: ...ion 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 Keep the number of walls and ceilings between the DI 624 and other network devices to a minimum each wa...

Страница 10: ...ir Xpert DWL AG520 wireless PCI adapter into an available PCI slot on your desktop computer See the printed Quick Installation Guide included with the network adapter Install the D Link DWL AG650 wireless Cardbus adapter into a laptop computer See the printed Quick Installation Guide included with the DWL AG650 Install the D Link DFE 530TX wireless Cardbus adapter into a desktop com puter The four...

Страница 11: ...d Leave the Password blank Click OK Using the Configuration Menu Home Wizard The Home Wizard screen will appear Please refer to the Quick Installation Guide for more information regarding the Setup Wizard Note if you have changed the default IP Address assigned to the DI 774 make sure to enter the correct IP Address These buttons appear on most of the configu ration screens in this section Please ...

Страница 12: ...Hexadecimal digits consist of the numbers 0 9 and the letters A F ASCII American Standard Code for Information Interchange is a code for repre senting English letters as numbers from 0 127 Keys 1 4 Input up to 4 WEP keys select the one you wish to use Key Type Select HEX or ASCII WEP Wired Equivalent Privacy If you enable encryption on the DI 774 make sure to also enable encryption on all 802 11a ...

Страница 13: ...etting All devices on the network must share the same SSID The SSID may be up to 32 characters long Wireless Settings Choose 802 11a or 802 11g Here 802 11g is selected WEP Wired Equivalent Privacy If you enable encryption on the DI 774 make sure to also enable encryption on all 802 11g wireless clients or wireless connection will not be established Keys 1 4 Input up to 4 WEP keys select the one y...

Страница 14: ...ddress Copy the MAC address of the Ethernet card installed by your ISP and replace the WAN MAC address with this Ethernet card MAC address It is not recommended that you change the default MAC address unless required by your ISP MTU Enter an MTU value only if required by your ISP Otherwise leave this section to its default setting of 1500 MTU is short for Maximum Transfer Unit Messages longer than...

Страница 15: ... in the network must have the same subnet mask Input the Gateway address MTU Enter an MTU value only if required by your ISP Otherwise leave this section to its default setting of 1500 MTU is short for Maximum Transfer Unit Messages longer than the MTU will be divided into smaller units for transmission Primary Secondary DNS Enter a DNS Address if you do not wish to use the one pro vided by your I...

Страница 16: ...ame provided by your ISP optional IP Address This option is only available for Static PPPoE Enter the static IPAddress for the PPPoE connection PPPoE Choose this option if your ISP uses PPPoE Most DSL users will select this option Dynamic PPPoE receive an IP Address automaticsally from your ISP Static PPPoE you have an assigned static IP Address Please be sure to remove any existing PPPoE client s...

Страница 17: ...ed or if the connection is dropped MTU Maximum Transmission Unit 1472 is default you may need to change the MTU to conform with your ISP Subnet Mask The subnet mask of the LAN interface The default subnet mask is 255 255 255 0 IP Address The IPAddress of the LAN interface The default IPAsddress is 192 168 0 1 Local Domain Name The domain name assigned to the router Maximum Idle Time Enter a maximu...

Страница 18: ...tically allocate an unused IP Address from the IP Address pool to the requesting computer You must specify the starting and ending address of the IP Address pool Static Dynamic DHCP Client Table Displays a list of Static and Dynamic DHCP clients assigned by the router DHCP Server Select Enabled or Disabled Starting IP Address The starting IPAddress for the DHCP server s IP assignment Ending IP Add...

Страница 19: ...rs in the LAN Local Area Network The DI 774 firewall feature filters out unrecognized packets to protect your LAN network so all computers networked with the DI 774 are invisible to the outside world If you wish you can make some of the LAN computers accessible from the Internet by enabling Virtual Server Depending on the requested service the DI 774 redirects the external service request to the a...

Страница 20: ...HTTP uses port 80 TCP Name Web Server Private IP 192 168 0 25 Protocol Type TCP Private Port 80 Public Port 80 Schedule always Protocol Type The protocol used for the virtual service Public Port The port number on the WAN WideArea Network side that will be used to access the virtual service Private Port The port number of the service used by the Private IP computer Schedule The schedule of time wh...

Страница 21: ...col Type TCP Private Port 21 Public Port 2100 Schedule From 01 00AM to 11 00PM Sat to Sun Using the Configuration Menu continued Advanced Virtual Server continued Click on this icon to edit the virtual service Click on this icon to delete the virtual service All Internet users who want to access this FTP Server must connect to it from port 2100 This is an example of port redirection and can be use...

Страница 22: ...d with the trigger port to open them for inbound traffic The DI 774 provides some predefined applications in the table on the bottom of the web page Select the application you want to use and enable it Note Only one PC can use each Special Application tunnel Name This is the name referencing the special application Trigger Port This is the port used to trigger the application It can be either a si...

Страница 23: ...ck users from accessing restricted web sites This is the schedule of time when the IP Filter will be enabled Schedule Select the protocol type Protocol Types The single port or port range that will be denied access to the Internet Port Use IP Filters to deny LAN IP Addresses from accessing the Internet You can deny specific port numbers or all ports for the specific IP Address IP Filters The IPAdd...

Страница 24: ...tted text string that defines a location on the Internet If any part of the URL contains the blocked word the site will not be accessible and the web page will not display Select the filter you wish to use in this case URL Blocking was chosen Keywords Block URLs which contain the keywords listed below Enter the keywords in this space URL Blocking Select Enabled or Disabled ...

Страница 25: ...dress from the list of clients that are currently connected to the Broadband Router MAC Filters Choose to Disable MAC filters or choose to allow or deny MAC addresses listed below Filters Select the filter you wish to use in this case MAC filters was chosen Name Enter the name here MAC Address Enter the MAC Address of the client that will be allowed or de nied access DHCP Client Select a DHCP clie...

Страница 26: ...ftp It can also allow computers to access specific sites and deny all other sites Filters Domain Blocking Blocked Domains Permitted Domains Select the filter you wish to use in this case Domain Blocking was chosen Disabled Allow Deny Enter the Permitted Domains in this field Enter the Blocked Domains in this field Select Disabled to disable Domain Blocking Allows users to access all domains except...

Страница 27: ...ules contains all network firewall rules pertaining to IP Internet Protocol In the Firewall Rules List at the bottom of the screen the priorities of the rules are from top highest priority to bottom lowest priority Note The DI 774 MAC Address filtering rules have precedence over the Firewall Rules Schedule Select Always or enter the Time Firewall Rules Name Action Source Enable or disable the Fire...

Страница 28: ...the Internet This feature is useful for gaming purposes Enter the IP Address of the internal computer that will be the DMZ host Adding a client to the DMZ Demilitarized Zone may expose your local network to a variety of security risks so only use this option as a last resort DMZ IP Address Enable or disable the DMZ The DMZ Demilitarized Zone allows a single computer to be exposed to the Internet E...

Страница 29: ...wireless performance features of the Access Point portion of the DI 774 Fragmentation This value should also remain at its default setting of 2346 If you experience a high packet error rate you may slightly increase your Fragmentation value within the range of 256 2346 Setting the Fragmentation value too low may result in poor performance Authentication Select Open system or Shared Key Open System...

Страница 30: ...ue within the range of 256 2346 Setting the Fragmentation value too low may result in poor performance DTIM interval Delivery Traffic Indication Message 1 is the default setting A DTIM is a countdown informing clients of the next window for listening to broadcast and multicast messages Beacon interval Beacons are packets sent by the DI 774 to synchronize a wire less network Specify a value 100 is ...

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