Question

What are the differences between static and dynamic IP addresses?

What are the advantages of dynamic IP addresses?

Answer 1

An Internet Protocol (IP) address is a unique number assigned to every device on a network. Network devices use IP addresses to communicate with each other. The Internet uses DNS (Domain Name System) to enable people to use words instead of numbers for Internet addresses. You can think of DNS as an Internet address book, mapping domain names to IP addresses.

	Static IP Address	Dynamic IP Address
1	Static IP address does not change any time, it means if a static IP address is provided then it can’t be changed or modified.	Dynamic IP address can be changed any time.
2	Internet Service Provider, ISP provides the static IP Address.	DHCP (Dynamic Host Configuration Protocol) is used to generate dynamic IP Address.
3	Static IP address is difficult to assign or reassign.	Dynamic IP address is easy to assign and reassign.
4	The device designed by static ip address can be trace.	Device using dynamic IP address is difficult to trace
5	Static IP Address is less secured.	Dynamic IP address being volatile in nature is less risky.
6	Static IP address is costly to maintain.	Dynamic IP address is cheaper to use and maintain than static IP address.
7	It is used where computational data is less confidential.	It is used where data is more confidential and needs more security.

Advantages of using Dynamic IP Addresses:

Dynamic IP addresses are easier to manage and cheaper to deploy than static IP addresses.

• Automatic network configuration –The user does not have to do the network configuration. It's done by DHCP.

• Lower fees: Typically, you save money by using a dynamic IP address.

• Better security: With a dynamic IP address it's harder for a potential attacker to target your networked equipment. You can also add to your security by obscuring your network address with a VPN.

• Unlimited IP addressing: Dynamic addresses allows us  to reuse IP addresses. Within a network, your devices are automatically configured with a fresh dynamic IP address as needed. So, for example, if you bring office a new computer you don’t have to manually delete the old one or assign it a number; the network or router takes care of it. That prevents confusing conflicts when two computers try to use the same IP address.