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D-Link DSL-2680 User Manual

Chapter 3 - Setup

DHCP Server Configuration

Follow the instructions below according to which of the above DHCP options you

want to use. When you have configured the DHCP Server Settings as you want

them, click the

Save Settings

button to commit the new settings.

Use the Router for DHCP

To use the built-in DHCP server, click to select the

Enable DHCP Server

option if

it is not already selected. The IP address pool settings can be adjusted beginning

with the first address in the

DHCP IP Address Range

.

The second IP address entered is the highest IP address number in the pool. Type

in the

DHCP Lease Time

in the entry field provided. This is the amount of time in

seconds that a workstation is allowed to reserve an IP address in the pool if the

workstation is disconnected from the network or powered off.

If you opt to disable DHCP service, all IP devices connected to the Router will

require manual IP settings configuration or another DHCP server.

Static IP Address Assignment

The router supports static IP address assignment for the LAN. This means that an

IP address is manually configured for a specified MAC address that does not age

out. Static IP addresses may be assigned to hosts on the LAN that have already

received IP settings and are listed in the DHCP Table. Alternatively the administrator

can manually enter a MAC address in the entry field provided. Type the MAC

address using the standard format 00:00:00:00:00:00 and selecting an IP address

within the subnet from the

IP Address

pull-down menu. Click the

Save Settings

button to create the static IP assignment

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Chapter 4 - Advanced Setup

Advanced Setup

The

Advanced

directory tab offers the following configuration menus:

Port Forwarding

,

DNS Setup

,

VLAN

,

Firewall & DMZ

,

Advanced ADSL

,

Advanced Wireless

,

Wi-Fi Protected Setup

,

Wireless MAC Filter

, and

Advanced LAN

. Click the corresponding link in the left panel of the window.

Port Forwarding

is the first menu

listed and the first to appear when accessing the

Advanced

directory.

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D-Link DSL-2680 User Manual

Chapter 4 - Advanced Setup

Port Forwarding

The

Port Forwarding

menu allows configuration for remote users access to various services outside of their LAN through a public IP address, such as FTP (File

Transfer Protocol) or HTTPS (Secure Web). After configuring the Router for these features, the Router will redirect these external services to an appropriate server

on the users LAN.

Enter an IP address in the

Private IP

field, select a

Protocol Type

from the drop-

down menu, enter a range of ports in the

Public Start Port

and

Public End Port

fields, and then click the

Add

/

Apply

button. Finally, click the

Reboot

button on the

left panel to let your changes take effect.

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Chapter 4 - Advanced Setup

DNS Setup

Use the

DNS Setup

menu to configure standard DNS server IP settings or to configure and enable DDNS for the Router.

DNS Server

Choose to “Obtain DNS server address automatically” from the ISP or enter DNS

IP address information manually. The

Preferred DNS Server

address is required,

the

Alternate DNS Server

address is used for a back up DNS server.

DDNS

Dynamic DNS allows a dynamic public IP address to be associated with a static host

name in any of the many domains, allowing access to a specific host from various

locations on the Internet. With this function enabled, remote access to a host will be

allowed by clicking a URL hyperlink in the following form: dlinkddns.com Because

many ISPs assign public IP addresses using DHCP, it can be difficult to locate a

specific host on the LAN using the standard DNS. For example, if you are running

a public web server or VPN server on your LAN, DDNS ensures that the host can

be located from the Internet if the public IP address changes. DDNS requires that

an account be set up with one of the supported DDNS servers.

To implement Dynamic DNS, first select the

Enable Dynamic DNS

option and

choose the

Server Address

from the list in the pull-down menu. Enter the

Host

Name

of the LAN to be accessed, and the

Username

and

Password

for the DDNS

account. Click the

Apply Settings

button to save changes made.

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Chapter 4 - Advanced Setup

VLAN

Use the

VLAN

menu to create VLAN groups for the wireless and Ethernet LANs.

VLAN Group Setting

Use the

VLAN

menu to choose a number for the VLAN group. To make sure

additional VLAN groups use unique index numbers, the menu will automatically

select a new index number for configuration after applying the VLAN group settings.

Click to select the member ports of each VLAN group for the two

Ethernet

ports

and

WLAN

interface and the

ATM VCs

port for each VLAN. Any port may be

specified as

Tagged

.

Packets that are tagged (are carrying the 802.1Q VID information) can be transmitted

from one 802.1Q compliant network device to another with the VLAN information

intact. This allows 802.1Q VLANs to span network devices (and indeed, the entire

network, if all network devices are 802.1Q compliant).

Select the

Tagged

option to enable tagging for the port. Ports with tagging enabled

will put the VID number, priority and other VLAN information into the header of all

packets that flow into and out of it. If a packet has previously been tagged, the port

will not alter the packet, thus keeping the VLAN information intact. Other 802.1Q

compliant devices on the network to make packet-for¬warding decisions can then

use the VLAN information in the tag.

VLAN Group is enabled by default. VLAN Groups can be disabled without changing

the previously configured VLAN arrangement. To disable VLAN Groups, click the

Enable VLAN Group

check box to remove the tick.

Click the

Add/Apply

button to apply the settings.