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DHCP Server
N. Ganesan, Ph.D.
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Reference
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DHCP Server
Issues or leases dynamic IP addresses toclients in a network
The lease can be subject to variousconditions
Duration
Computer ID etc.
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IP Address Assignment
The DHCP server assigns or leases a client anIP address for a
predetermined period of time In most cases, the IP address is
automatically
renewed when a clients logs into a network The IP address
assigned is taken from a pool
of IP addresses defined as the scope of IPaddresses available
for assignment
A user can manually release and renew an IPaddress by typing the
commands "ipconfig/release", followed by "ipconfig /renew" inthe
command prompt
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Assignment Conditions
IP addresses can be reserved for clientsbased on MAC addresses
and host
names
For security, the lease of IP addressescan be restricted to
clients with known
MAC addresses
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DHCP Server in a Network
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Initiating the Installation of the
DHCP Server
User the Manage Your Server wizardand select the DHCP server
option for
installation
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Name and Description of the
DHCP Server
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Address Range and Subnet Mask
Specification
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IP Address Exclusions
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Exclusions
Some IP addresses may be excluded so thatthey could be reserved
for assignment to
servers as static addresses Servers, in general, requires the
assignment of
static addresses
The router address is also normally excluded
Specific or a range of IP addresses may beexcluded in this
manner
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Lease Duration
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Guideline on Lease Duration
Shorter leases for mobile devices suchas laptops
Longer leases for permanent devicessuch as desktops
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Configuration of DHCP Options
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Default Gateway Address
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Domain Name and DNS Server
Address
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DNS Specification
DNS IP address can be specifiedmanually
DNS IP address can also be resolved byentering the server name
and pressingthe resolve button on the screen
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WIN Servers
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Scope Activation
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Further Configuration of DHCP
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Further Exclusions
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Exclusive IP Address Reservation
for Clients
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Reservation Basis
Reservations are based on MACaddresses
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The End
