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11.4 DHCP Server Setup
A DHCP Server allows diskless clients to connect to a network and automatically obtain an IP address. This server is
capable of supplying each network client with an IP address, subnet mask, default gateway, an IP address for a WINS
server, and an IP address for a DNS server. This is very often used in enterprise networks to reduce configuration
efforts. All IP addresses of all computers/routers/bases are stored in a database that resides on a server machine.
The network administrator should contact the relevant vendors for detail information or step-by-step procedure on
how to install and setup DHCP process or service on windows/Linux servers. In this section, we will provide some hints
of how to resolve potential problems to be encountered you setup DHCP Servers.
Hint: Getting DHCP Server to Work
Windows Server:
1) Clients are unable to obtain an IP address
If a DHCP client does not have a configured IP address; it generally means that the client has not been able to
contact a DHCP server. This is either because of a network problem or because the DHCP server is unavailable. If
the DHCP server has started and other clients have been able to obtain a valid address, verify that the client has a
valid network connection and that all related client hardware devices (including cables and network adapters) are
working properly.
2) The DHCP server is unavailable
When a DHCP server does not provide leased addresses to clients, it is often because the DHCP service has failed
to start. If this is the case, the server may not have been authorized to operate on the network. If you were
previously able to start the DHCP service, but it has since stopped, use Event Viewer to check the system log for
any entries that may explain the cause.
Next, restart the DHCP service, click Start, click Run, type cmd, and then press ENTER. Type
net start dhcpserver, and then press ENTER.