Question

Discuss the advantages and disadvantages of using DHCP.

Answer 1

Benefits or advantages of DHCP
Following are the benefits or advantages of DHCP:

➨DHCP is very simple to understand and very easy to implement and performs automatic assignment of IP addresses to requesting clients.

➨In DHCP, manual configuration time of IP addresses can be decreased.

➨The implementation does not require high cost.

➨Duplication of IP addresses are not allowed, hence it has no chance of conflicts in IP addresses.

➨DHCP makes network administration simple.

➨It supports multiple scopes e.g. multicast scope, super scope etc.

Drawbacks or disadvantages of DHCP
Following are the disadvantages of DHCP:

➨Security: DHCP automation can be a very intense security risk if a wrong DHCP server is introduced to the network. A wrong server isn't under control of the network administrator, and can offer IP addresses to users connecting to the network. If a user connects to the wrong DHCP, information sent over that connection can be intercepted or looked at, This is known as a man in the middle attack.

➨Failure: If only a single DHCP server is in place, it forms a single critical junction where failure can erupt from a single issue to a system-wide problem.

➨The machine name does not change when new IP address is assigned.

➨Client is not able to access the network in the absence of the DHCP server.

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