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Once your router is properly configured and this option is enabled, the DHCP Server will manage the
IP addresses and other network configuration information for computers and other devices connected
to your Local Area Network. There is no need for you to do this yourself.
The computers (and other devices) connected to your LAN also need to have their TCP/IP
configuration set to "DHCP" or "Obtain an IP address automatically". When you set Enable DHCP
Server, the following options are displayed.
DHCP IP Address Range
These two IP values (Start and End) define a range of IP addresses that the DHCP Server uses when
assigning addresses to computers and devices on your Local Area Network. Any addresses that are
outside of this range are not managed by the DHCP Server; these could, therefore, be used for
manually configured devices or devices that cannot use DHCP to obtain network address details
automatically.
It is possible for a computer or device that is manually configured to have an address that does reside
within this range. In this case the address should be reserved, so that the DHCP Server knows that
this specific address can only be used by a specific computer or device.
Your router, by default, has a static IP address of 192.168.10.1. This means that addresses
192.168.10.2 to 192.168.10.254 can be made available for allocation by the DHCP Server.
Subnet Mask
The subnet mask of the local area network.
Gateway
The IP address of the router on the local area network. For example, 192.168.10.1.
DHCP Lease Time
The amount of time that a computer may have an IP address before it is required to renew the lease.
The lease functions just as a lease on an apartment would. The initial lease designates the amount of
time before the lease expires. If the tenant wishes to retain the address when the lease is expired then
a new lease is established. If the lease expires and the address is no longer needed than another
tenant may use the address.
Add/Edit DHCP Reservation
This option lets you reserve IP addresses, and assign the same IP address to the network device with
the specified MAC address any time it requests an IP address. This is almost the same as when a
device has a static IP address except that the device must still request an IP address from the router.
The router will provide the device the same IP address every time. DHCP Reservations are helpful for
server computers on the local network that are hosting applications such as Web and FTP. Servers on
your network should either use a static IP address or use this option.
Computer Name
You can assign a name for each computer that is given a reserved IP address. This may help you
keep track of which computers are assigned this way. Example: Game Server.
IP Address:
The LAN address that you want to reserve.
MAC Address
To input the MAC address of your system, enter it in manually or connect to the router's
Web-Management interface from the system and click the Copy Your PC's MAC Address button.
A MAC address is usually located on a sticker on the bottom of a network device. The MAC address is
comprised of twelve digits. Each pair of hexadecimal digits are usually separated by dashes or colons
such as 00-0D-88-11-22-33 or 00:0D:88:11:22:33. If your network device is a computer and the
network card is already located inside the computer, you can connect to the router from the computer
and click the Copy Your PC's MAC Address button to enter the MAC address.
Clear
Re-initialize this area of the screen, discarding any changes you have made.
DHCP Reservations List
This shows clients that you have specified to reserve DHCP addresses. Click the Enable checkbox at
the left to directly activate or de-activate the entry. An entry can be changed by clicking the Edit icon or
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