D-Link DSL-500 User Manual page 22

DSL-500 ADSL Router User's Guide
The Dynamic Host Configuration Protocol (DHCP) allows the Router to
dynamically assign IP addresses to network devices. Dynamic IP assignment
eliminates the need for the network administrator to maintain and monitor IP
address assignments and simplifies IP use because IP address are automatically
and dynamically assigned when a computer is powered-on.
Important Note: If you use DHCP to set your local IP addresses, the software IP settings of all
stations on the network will need to be manually configured to 0.0.0.0., or, as in the case of Windows
95 users, the "Obtain an IP address automatically" option under TCP/IP will have to be selected.
Start IP Address
This is the base (starting) address for the IP pool of unassigned IP addresses.
End IP Address
This is the last address of the contiguous IP address range to be used by the
Router for DHCP function.
Netmask
This mask informs the client how the destination IP address is to be divided into
network, subnet, and host parts.
Default Gateway
This specifies the Gateway IP Address that will be assigned to and used by the
DHCP clients.
Leased Time
The specified amount of time (in seconds) a client can lease an IP address, from
the dynamically allocated IP pool. A value of 4123456789 means the lease is
permanent.
DNS Server IP
Domain Name Service (DNS) servers are used on the Internet to match the
Uniform Resource Locator (URL) for a website to its Internet IP address. For
example, the URL: www.cnn.com, is a pseudonym for the IP address:
207.25.71.25. DNS entries allow users to access resources using URLs instead of
IP addresses.
You may enter any Internet DNS server IP address available through the WAN
connection. Your ISP should provide this address. (Note that without a DNS
server IP, internet sites will only be available using IP addresses and will not be
available using URLs.)
State
This toggles Disable and Enable for DHCP function.
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