1 dhcp server and windows server 2012
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Transcript of 1 dhcp server and windows server 2012
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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 to clients in a network
• The lease can be subject to various conditions– Duration– Computer ID etc.
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IP Address Assignment
• The DHCP server assigns or leases a client an IP 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 IP addresses available for assignment
• A user can manually release and renew an IP address by typing the commands "ipconfig /release", followed by "ipconfig /renew" in the command prompt
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Assignment Conditions
• IP addresses can be reserved for clients based on MAC addresses and host names
• For security, the lease of IP addresses can 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 wizard and 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 that they 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 be excluded in this manner
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Lease Duration
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Guideline on Lease Duration
• Shorter leases for mobile devices such as laptops
• Longer leases for permanent devices such 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 specified manually
• DNS IP address can also be resolved by entering the server name and pressing the “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 MAC addresses
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The End