Page 114 - RHEL8 BOOK

DHCP SERVER

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D H C P L i n u x C l i e n t
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D H C P

D H C P W i n d o w C l i e n t
D H C P S e r v e r

DHCP
 It gives IP Addresses Automatically to the Clients who is requesting for an IP Address
 Centralized IP Address Management
 DHCP prevents IP address Conflicts and helps conserve the use of client IP Address on the Network
 DHCP reduces the complexity and amount of administrative work by assigning TCP/IP configuration
 Client IP configuration is updated automatically

Why DHCP?
Static IP Assigning Dynamic IP Assigning
 IP addresses are entered manually  IP addresses are supplied automatically
 IP address could be entered incorrectly  Correct configuration information is ensuring
 Communication and network issues can  Client configuration is updated automatically
result  A common source of network problems is
 Frequent computer moves increase eliminated
administrative effort

Process of IP Assignment by DHCP:
1. When a client computer starts, if it is configured to use DHCP Server to get IP address.
2. Client Computer sends a DISCOVER broadcast request on network.
3. DHCP server received this request and sends an OFFER packet back to client.
4. After getting offer packet, Client sends a REQUEST packet to DHCP server to assign an IP.
5. DHCP Server assigned the IP to client computer and sends a ACK packet to client.

S. Pradhan
(MCA, MBA-IT, BCA, CCNA, MCSA 2012, RHCE, ETHICAL HACKING)
Email Id:-spradhan.iiht@gmail.com
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