May 13

As World IPv6 Day gets closer, D-Link today unveiled its IPv6 Readiness, a new Web site dedicated to helping educate people on getting ready for the new Internet Protocol.

World IPv6 Day, on June 8, is when a few Internet companies, including Google, Facebook, Yahoo, Akamai, and Limelight Networks, will offer their content over IPv6 for a 24-hour test run.

When the Internet was first designed in the early ’80s, the 4.3 billion addresses provided by the current Internet Protocol version 4 (IPv4), seemed more than enough. Nowadays, with the rapid penetration of the Internet to so many devices, from cell phones and TVs to cars and even washing machines and refrigerators, that amount of IPs is running out fast, and is actually expected to exhaust by the end of the year.

dlink_ipv6

For this reason, the need to move to a new IP version is imminent. The successor, Internet Protocol version 6 (IPv6), is capable of providing quite a few more addresses, with a total of some 340 undecillion. (It will take a long time to count but each undecillion equals a trillion trillion trillion.) Basically it’s safe to say that IPv6 will give each person on Earth at least 3, or maybe even 5 or 10 IP addresses and still have quite a sizable amount reserved for future purposes. Apart from that, IPv6 also offers other improvements, such as faster speed and better security.

The transition to IPv6 will take time. This is mostly because it’s a new protocol and isn’t backward compatible with IPv4. For this reason, the two protocols will coexist for the foreseeable future, and networking devices will need to be able to support both of them seamlessly.

Anticipating this future, D-Link says that it’s one of the first networking companies to offer IPv6-compliant networking devices, including routers, access points, and power-line communication devices. The benefits of these devices, most of which are the same benefits of IPv6, include:

Automatically IPv6-ready: Your network automatically covers both IPv4 and IPv6 standards to support legacy products–an existing laptop or set-top box–as well as new devices with an IPv6 address.

Enhanced network security: Plug in an IPv6-enabled D-Link router and the new security feature is automatically turned on.
Increased network speeds and accessibility: As Web sites start to offer content over IPv6 and ISPs deploy IPv6 service, an IPv6-compliant router offers faster connection speeds and provides access to Web sites and applications that have transitioned. With its better design, IPv6 has integrated quality of service, so traffic is classified by voice, video, and data, and transported accordingly, resulting in faster network speeds.

Simplified network management: Under the IPv6 protocol, communication between each client on a network is simplified without the need to maintain address schemes or split up the limited number of IPv4 addresses; now all fixed and mobile devices including cell phones can be transported on a single common network.

Continued connectivity to the Web: IPv6-ready routers ensure continued support and connectivity to the Internet, even after the IPv6 address scheme transitions.

IPv4 communication with IPv6: Each ISP will handle communication between IPv4 and IPv6 networks in its own manner. However, D-Link’s IPv6-certified routers will seamlessly support each communication method without requiring interaction from users.

While it’s likely that most existing routers can be upgraded to support IPv6 via a firmware update, D-Link says it currently already offers a selection of wireless routers and other networking devices that are IPv6-ready. Examples of these devices are the DIR-655 and the DIR-825. Other networking vendors also offer theirs, such as Asus with the RT-N56, or Cisco with the new Linksys E series.

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May 13

1.What is the difference between D-Link D-ViewCam and the traditional surveillance system?

D-Link D-ViewCam records video in MJPEG and MPEG4 formats, stores high quality image data on computer hard disks, and provides easy query and review of the stored video. Traditional surveillance systems use videotape for storage and review, which is hard to managed, time consuming and the recorded video will degrade over a period of time or usage.

2.What is the Lux Factor for my Internet camera?

Lux is a unit of illumination equal to one candle intensity or equal to one lumen per square meter.

Note: Lower LUX value cameras work better in low light.

DCS-900/DCS-900W
2.5Lux @ F1.4

DCS-910/DCS-920
1.0Lux @ F1.9

DCS-950/DCS-950G
0.5 Lux @ F1.4

DCS-2000/DCS-2100+
2.5Lux @ F1.4

DCS-3220/DCS-3220G
1.0Lux @ F2.0

DCS-5300/DCS-5300W/DCS-5300G
1.0Lux @ F2.0

DCS-6620/DCS-6620G
0.05Lux

DCS-5610
1.0Lux @ F1.9

DCS-6110
1.5Lux @ F1.4

DCS-3410
0.3Lux @ F1.6 (typical); 0 Lux (10 meter range with optional IR Lens)

DCS-3415
1.61Lux @ F1.4 1/30s 0.38 Lux F1.4, 1/30s, ICR on

3.How do I turn off the LED indicator on my DCS-920/910 series camera?

Step 1: Log into the web-based configuration of the camera.

Step 2: Click the Maintenance tab and then click Device Management to the left.

DCS-920-LED

Step 3: Click Off using the radio buttons next to LED Control.

Step 4: Click Apply to save the settings.

4.How are multiple camera views displayed on the screen using D-ViewCam 2.0?

If you deploy several cameras and they are all displaying video at the same time, you have several options to arrange the display of these videos on your computer screen. One option is to reserve a major part of the screen to display the video from a single camera. Another option is to split the screen to show videos from multiple cameras. To switch the display from one camera to another, you can either manually select a camera, or have the system automatically display videos from all cameras in turn, called auto rotation.

5.What is the field of vision of my D-Link DCS camera?

The fields of vision for D-Link cameras are listed below:

The fields of vision for D-Link cameras are listed below:

DCS-2100/2100G: 62 degrees
(A1)
  • Field of vision (H): 42 degrees
  • Field of vision (V): 53 degrees
  • Field of vision (Diagonal): 64 degrees
DCS-2000/2100+: 62 degrees
DCS-900/900W & DCS-950/950G 
  • Field of vision (Diagonal): 45 degrees
  • Field of vision (V): 27 degrees
  • Field of vision (H): 34 degrees
DCS-910/920
  • Field of vision (V): 49.2 degrees
  • Field of vision (H): 32 degrees
DCS-1100/1130
  • Field of vision (V): 49.2 degrees
  • Field of vision (H): 32 degrees
DCS-3110
  • Field of vision (V): 60 degrees to 28 degrees
  • Field of vision (H): 80 degrees to 37 degrees
DCS-3220/3220G: 50 degrees
  • Field of vision (H):39 degrees
  • Field of vision (V): 34 degrees
  • Field of vision (Diagonal): 50 degrees
DCS-3410
  • Field of vision (V): 34 degrees
  • Field of vision (H): 45 degrees
DCS-3420
  • Field of vision (V): 31 degrees
  • Field of vision (H): 41 degrees
DCS-3415
  • Field of vision (H): 48 degrees to 28 Degrees
DCS-5300/5300G: 64 degrees
  • Field of vision (H): 53 degrees
  • Field of vision (V): 46 degrees
  • Field of vision (Diagonal): 66 degrees
DCS-5605
  • Field of vision (V): 40 degrees to 4 degrees
  • Field of vision (H): 51 degrees to 6 degrees
DCS-5610
  • Field of vision (V): 54.7 degrees to 21.6 degrees
  • Field of vision (H): 73.4 degrees to 28.7 degrees
DCS-6110
  • Field of vision (V): 57 degrees to 17 degrees
  • Field of vision (H): 77 degrees to 23 degrees
DCS-6111
  • Field of vision (V): 47 degrees to 13 degrees
  • Field of vision (H): 63 degrees to 18 degrees
DCS-6620/6620G: 66 to 5 degrees (change according to the parameterized optical Zoom)
  • Field of vision (H): 54 degrees to 5 degrees
  • Field of vision (V): 47 degrees to 5 degrees
  • Field of vision (Diagonal): 68 degrees to 7 degrees

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May 13

This FAQ is for the D-Link DCS-930L,DCS-920,DCS-900 cameras.

Step 1: Click on the D-Link Setup Wizard SE icon that was created in your Windows 7 Start menu.

Web-Base-configuration-1

Note: The Setup Wizard will appear and show the MAC address of the camera and an IP Address (which may or may not be correct depending on what you have your camera connected to). If you have a DHCP server on your network, there will be a valid IP Address displayed here.

Note: A DHCP server is a device that supplies the same IP address.

Step 2: Click the button labeled Link to access the web configuration.

Step 3: Enter admin as the default username and leave the password blank. Click OK to continue.

Web-Base-configuration-3

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May 10

1.Basic Settings Wireless Access Point mode:

Select either 2.4GHz or 5GHz from the drop-down menu.

Select Access Point from the drop-down menu. The other three choices are WDS with AP, WDS, and Wireless Client.

Service Set Identifier (SSID) is the name designated for a specific wireless local area network (WLAN). The SSID’s factory default setting is dlink. The SSID can be easily changed to connect to an existing wireless network or to establish a new wireless network. The SSID can be up to 32 characters and is case-sensitive.

Enable or Disable SSID visibility. Enabling this feature broadcasts the SSID across the network, thus making it visible to all network users.

Enabling this feature automatically selects the channel that provides the best wireless performance. Enable is set by default. The channel selection process only occurs when the AP is booting up.

dap-2553-wds-1

All devices on the network must share the same channel. To change the channel, first toggle the Auto Channel Selection setting to Disable, and then use the drop-down menu to make the desired selection.

Allows you to select the channel width you would like to operate in. Select 20 MHz if you are not using any 802.11n wireless clients. Auto 20/40 MHz allows you to connect to both 802.11n and 802.11b/g or 802.11a wireless devices on your network.

Use the drop-down menu to choose Open System, Shared Key, WPA-Personal, WPA-Enterprise, or 802.11x.

Select Open System to communicate the key across the network.

Select Shared Key to limit communication to only those devices that share the same WEP settings. If multi-SSID is enabled, this option is not available.

Select WPA-Personal to secure your network using a password and dynamic key changes. No RADIUS server is required.

Select WPA-Enterprise to secure your network with the inclusion of a RADIUS server.

Select 802.11x to secure your network using 802.11x authentication.

2.WDS with AP mode

In WDS with AP mode, the D-Link DAP-2553 wirelessly connects multiple networks while still functioning as a wireless AP.

Select either 2.4GHz or 5GHz from the drop-down menu.

WDS with AP mode is selected from the drop-down menu.

dap-2553-wds-2

Service Set Identifier (SSID) is the name designated for a specific wireless local area network (WLAN). The SSID’s factory default setting is dlink. The SSID can be easily changed to connect to an existing wireless network or to establish a new wireless network.

Enable or Disable SSID visibility. Enabling this feature broadcasts the SSID across the network, thus making it visible to all network users.

Enabling this feature automatically selects the channel that will provide the best wireless performance. This feature is not supported in WDS with AP mode. The channel selection process only occurs when the AP is booting up.

All devices on the network must share the same channel. To change the channel, use the drop-down menu to make the desired selection. (Note: The wireless adapters will automatically scan and match the wireless settings.)

Allows you to select the channel width you would like to operate in. Select 20 MHz if you are not using any 802.11n wireless clients. Auto 20/40 MHz allows you to connect to both 802.11n and 802.11b/g or 802.11a wireless devices on your network.

Enter the MAC addresses of the APs on your network that will serve as bridges to wirelessly connect multiple networks.
Click on the Scan button to search for available wireless networks, then click on the available network that you want to connect with.

Use the drop-down menu to choose Open System, Shared Key, or WPA-Personal.

Select Open System to communicate the key across the network.

Select Shared Key to limit communication to only those devices that share the same WEP settings. If multi-SSID is enabled, this option is not available.

Select WPA-Personal to secure your network using a password and dynamic key changes. No RADIUS server is required.

3.WDS mode

In WDS mode, the DAP-2553 wirelessly connects multiple networks, without functioning as a wireless AP.

dap-2553-wds-3

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May 09

The flavour of the month in network storage seems to be advanced NAS devices aimed at small and medium-sized businesses. D-Link’s ShareCenter Pro D-Link DNS1200-05 falls firmly into that category, offering a 5-bay bare enclosure that, if populated with 3TB SATA drives, can provide up to 15TB of shared storage.

It’s a compact tower unit that resembles the old DSN-1100 model, with a lockable door that opens to reveal the five hot-swappable drive carriers. Drives are secured in the quick-release carriers with four screws. Below the door is a small 128-by-32-pixel OLED status display showing the IP address, system status and error messages. Each drive has a small activity light visible — although not that easily in daylight — through the door.

dns-1200-05

At the rear are the twin Gigabit Ethernet ports, which support a variety of network link aggregation, adaptive load balancing and failover protocols, plus two USB ports with storage and printer support. Two fan outlets provide ventilation, with automatic or manual fan speed control. We noticed very little noise in normal operation with two disks, and even at full speed the fans were not excessively noisy. The unit can be configured to hibernate after a set period, and daily power-down and power-off times can be scheduled.

After installing the two 1TB Hitachi HDT721010SLA360 drives provided by D-Link for this reviews (the system is sold as a bare enclosure), we ran the EZ-Search discovery utility to gain access to the web configuration interface. A System Wizard quickly walked us through the basic steps of configuring the network interface and file-sharing protocols before asking what type of array to create. We chose a RAID-1 array, and the entire setup was completed in well under five minutes. Two other wizards take you through the process of creating users, groups and shared folders. All the wizards are reasonably simple, but they lack explanations of more advanced settings such as ‘oplocks’ and ‘map archive’. The PDF manual helps a little, but more detailed guidance for NAS novices would be useful.

The ShareCenter Pro supports RAID 0-6 (with hot spares and auto-rebuild capabilities), plus JBOD concatenation modes, and arrays can be easily extended, expanded or migrated between compatible RAID levels at any time. Volumes can be encrypted and unlocked either at system start or when a USB unlocking key (an optional step in the volume creation process) is inserted.

dlink-dns-1200-05

D-Link’s EZ-Search utility lets you partition and format drives, and map shared folders

Mapped shares and iSCSI targets can be enabled concurrently, and after enabling an iSCSI target in the web interface (with optional CHAP authentication), drives can be partitioned and formatted using the EZ-Search utility if you don’t want to use Windows’ own tools. EZ-Search can also be used to map shared folders. Virtual volumes can be created by combining other iSCSI targets on the network.

The configuration menu is admirably uncluttered and fairly easy to follow — but again, spending time with the contextual help pays dividends. For example, at first glance it’s not entirely obvious what Web File Manager and Download Manager do. The help file reveals these are remote file access and file download scheduling features, and they work very well. Users can log into the AjaXplorer application remotely via a web browser to upload, download and organise shared files. The Download Manager supports either FTP and HTTP downloads.

Remote backups can be made to either another D-Link NAS or an Rsync server; volume snapshots, local file/folder backups and backups of external USB drives are also supported. A single-user copy of FarStone Total Backup Recovery Server software is bundled for client imaging, backup and restore. A recycle bin can be created for each shared folder for protection against accidental deletions.

To integrate with larger networks, an SNMP MIB is provided on the CD, and network discovery using either UPnP and LLTD ensures compatibility with Windows 7‘s network map. All common file sharing protocols are supported. Smaller businesses will appreciate the dynamic DNS support, using either D-Link’s own service or DynDNS. Email alerts for a variety of system parameters (such as a full disk or overheating) and errors can be configured, and log files can also be sent to an administrator on a regular basis. User management is particularly easy, with the ability to batch-create users or import from a text file. Disk quotas can be assigned to each user.

We did run some performance tests using Passmark Performance Test — but, as mentioned, the ShareCenter 1200-05 is sold unpopulated so these results only apply to our specific review setup. With our 1TB RAID-1 array, on a mapped folder, a single File Server workload thread returned throughput of 38MB/s, dropping to 17MB/s for four simultaneous threads. The standard disk test returned a Passmark disk score of 445, with sequential reads of 54.6MB/s, sequential writes 39.6MB/s and random seeks and read/write performance of 28.9MB/s. These figures improved when repeated on an iSCSI target, giving a Passmark disk score of 508.4 (with component scores of 67.7, 38.8 and 34.1MB/s respectively). A single-thread File Server workload test achieved 41.5MB/s.

The ShareCenter D-Link DNS-1200-05 is a capable NAS enclosure that does a decent job of straddling the divide between consumer-level NAS and more complex enterprise systems. Its ease of use and advanced RAID capabilities makes it an attractive, if expensive, option for the smaller network, and some administrators will no doubt welcome the lack of consumer-focused add-ons such as media servers that tend to clutter up many general-purpose NAS boxes.

FROM:http://www.zdnet.co.uk/reviews/nas/2011/05/09/d-link-sharecenter-pro-1200-05-40092706/

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