Apr 22

This section will allow you to change the local network settings of the D-Link router DIR-850L and to configure the DHCP settings.

Router Settings

Router IP Address:

Enter the IP address of the router. The default IP address is 192.168.0.1. If you change the IP address, once you click Save Settings, you will need to enter the new IP address in your browser to get back into the configuration utility.

Default Subnet Mask:

Enter the Subnet Mask. The default subnet mask is 255.255.255.0.

Host Name:

Enter a name for the router.

Local Domain Name:

Enter the Domain name (Optional).

Enable DNS Relay:

Uncheck the box to transfer the DNS server information from your ISP to your computers. If checked, your computers will use the router DIR-850L for a DNS server.

DHCP Server Settings:

DHCP stands for Dynamic Host Control Protocol. The D-Link DIR-850L has a built-in DHCP server. The DHCP Server will automatically assign an IP address to the computers on the LAN/private network. Be sure to set your computers to be DHCP clients by setting their TCP/IP settings to “Obtain an IP Address Automatically.” When you turn your computers on, they will automatically load the proper TCP/IP settings provided by the DIR-850L. The DHCP Server will automatically 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.

Enable DHCP Server:

Check this box to enable the DHCP server on your router. Uncheck to disable this function.

DHCP IP Address Range:

Enter the starting and ending IP addresses for the DHCP server’s IP assignment.

Note: If you statically (manually) assign IP addresses to your computers or devices, make sure the IP addresses are outside of this range or you may have an IP conflict.

DHCP Lease Time:

The length of time for the IP address lease. Enter the Lease time in minutes.

Always Broadcast:

Enable this feature to broadcast your DHCP server to LAN/WLAN clients.

NetBIOS Announcement:

NetBIOS allows LAN hosts to discover all other computers within the network, enable this feature to allow the DHCP
Server to offer NetBIOS configuration settings.

Learn NetBIOS from WAN:

Enable this feature to allow WINS information to be learned from the WAN side; disable to allow manual configuration.

NetBIOS Scope:

This feature allows the configuration of a NetBIOS ‘domain’ name under which network hosts operates. This setting has no effect if the ‘Learn NetBIOS information from WAN’ is activated.

DHCP Reservation

If you want a computer or device to always have the same IP address assigned, you can create a DHCP reservation. The router will assign the IP address only to that computer or device.

Note: This IP address must be within the DHCP IP Address Range.

Enable:Check this box to enable the reservation.

Computer Name:

Enter the computer name or select from the drop-down menu and click <<.

IP Address:

Enter the IP address you want to assign to the computer or device. This IP Address must be within the DHCP IP Address Range.

MAC Address:

Enter the MAC address of the computer or device.

Clone Your PC’s MAC Address:

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.

Save:

Click Save to save your entry. You must click Save Settings at the top to activate your reservations.

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Oct 22

On this article the user can configure the internal network settings of the D-Link DIR-645 router and also able to configure the built-in DHCP server to assign IP addresses to computers on the network. The IP address that is configured here is the IP address that is used to access the Web-based management interface. If you change the IP address in this section, you may need to adjust your PC’s network settings to access the network again.

Router IP Address:

Enter the IP address of the router. The default IP address is 192.168.0.1. If you change the IP address, once you click Apply, you will need to enter the new IP address in your browser to get back into the configuration utility.

Default Subnet Mask:

Enter the Subnet Mask. The default subnet mask is 255.255.255.0.

Host Name:

Enter a Host Name to identify this device.

Local Domain Name:

Enter the local domain name used here. (Optional).

Enable DNS Relay:

Uncheck the box to transfer the DNS server information from your ISP to your computers. If checked, your computers will use the router for a DNS server.

DIR-645-Network-Settings

DIR-645-Network-Settings-2

D-Link DIR-645 DHCP Server Settings

DHCP stands for Dynamic Host Control Protocol. This device has a built-in DHCP server. The DHCP Server will automatically assign an IP address to the computers on the LAN/private network. Be sure to set your computers to be DHCP clients by setting their TCP/IP settings to “Obtain an IP Address Automatically.” When you turn your computers on, they will automatically load the proper TCP/IP settings provided by the router. The DHCP Server will automatically 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.

Enable DHCP Server:

Check this box to enable the DHCP server on your router. Uncheck to disable this function.

DHCP IP Address Range:

Enter the starting and ending IP addresses for the DHCP server’s IP assignment.

DHCP Lease Time:

The length of time for the IP address lease. Enter the Lease time in minutes.

Always Broadcast:

If all the computers on the LAN successfully obtain their IP addresses from the router’s DHCP server as expected, this option can remain disabled. However, if one of the computers on the LAN fails to obtain an IP address from the router’s
DHCP server, it may have an old DHCP client that incorrectly turns off the broadcast flag of DHCP packets. Enabling this option will cause the router to always broadcast its responses to all clients, thereby working around the problem, at the cost of increased broadcast traffic on the LAN.

NetBIOS announcement:

Check this box to allow the DHCP Server to offer NetBIOS configuration settings to the LAN hosts. NetBIOS allow LAN hosts to discover all other computers within the network, e.g. within Network Neighborhood.

Learn NetBIOS from WAN:

If NetBIOS announcement is switched on, it will cause WINS information to be learned from the WAN side, if available. Turn
this setting off to configure manually.

NetBIOS Scope:

This is an advanced setting and is normally left blank. This allows the configuration of a NetBIOS ‘domain’ name under which network hosts operate. This setting has no effect if the ‘Learn NetBIOS information from WAN’ is activated.

DIR-645-Network-Settings-3

NetBIOS node type:

This field indicates how network hosts are to perform NetBIOS name registration and discovery. H-Node, this indicates a Hybrid-State of operation. First WINS servers are tried, if any, followed by local network broadcast. This is generally the preferred mode if you have configured WINS servers. M-Node (default), this indicates a Mixed-Mode of operation. First Broadcast operation is performed to register hosts and discover other hosts, if broadcast operation fails, WINS servers are tried, if any. This mode favours broadcast operation which may be preferred if WINS servers are reachable by a slow network link and the majority of network services such as servers and printers are local to the LAN. P-Node, this indicates to use WINS servers ONLY. This setting is useful to force all NetBIOS operation to the configured WINS servers. You must have configured at least the primary WINS server IP to point to a working WINS server. B-Node, this indicates to use local network broadcast ONLY. This setting is useful where there are no WINS servers available, however, it is preferred you try M-Node operation first. This setting has no effect if the ‘Learn NetBIOS information from WAN’ is activated.

Primary WINS Server IP address:

Configure the IP address of the preferred WINS server. WINS Servers store information regarding network hosts, allowing
hosts to ‘register’ themselves as well as discover other available hosts, e.g. for use in Network Neighborhood. This setting has no effect if the ‘Learn NetBIOS information from WAN’ is activated.

Secondary WINS Server IP address:

Configure the IP address of the backup WINS server, if any. This setting has no effect if the ‘Learn NetBIOS information from WAN’ is activated.

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Aug 03

DHCP Reservation is used to assign a specific IP address to a specific MAC address on the LAN.

Use the following steps:

Step 1: Open a web browser and type the IP address of the DIR series router into the address bar (default is http://192.168.0.1).

Step 2: The default username is admin (all lower case) and the default password is blank (nothing). Click on OK.

Step 3: Click on the Setup tab at the top and then click on Network Settings on the lefthand side.

Step 4: Scroll down to Add DHCP Reservation.

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Step 5: Input a desired name and address. Click the Copy Your PC’s MAC ADDRESS button.

If the Reservation address you’re creating is not for the machine that you are working from you’ll need to obtain the MAC address of that machine.

Step 6: Click on Save Settings to save your settings.

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