If we turn our modem or router off, our IP address may change. This is one of the reasons why DNS is so important. Instead of directly informing others when our IP address changes, we can directly inform our DNS server. This means that any other device that contacts the DNS server will get the updated information for the new IP address. Our static IP addresses usually stay the same unless our network architecture changes or our devices are out of commission.
Static IP addresses are typically used for servers or other important networking equipment. They also work well for remote access solutions. Typically, static IP addresses add to the cost of your internet service. A dynamic IP address is an IP address that can regularly change. Dynamic IP addresses are often reassigned. Reassigning IP addresses helps internet providers save money and ensure a higher level of security.
Dynamic IP addresses are more common for consumer equipment and personal use. The DHCP server typically uses network routers to assign addresses to devices. Get started with computer networking for free with our 1-week Educative Unlimited Trial.
In other words, static IP addresses tend to be better for businesses, while dynamic IP addresses tend to be better for personal or home networks. Geolocation services : With static IP addresses, our geolocation services are more accurate. This is because our services will match the IP address to its physical location.
Reliable connection : A static IP address is fixed, which typically results in a more reliable connection. Easy to find : A static IP address can make it easier to find specific devices on a network. A device set with a static IP address makes sure that the device is easily found on the network, since the IP address will not change.
It is also recommended to use static IP addresses for devices within the network that are accessed by the Internet as in the case of a web server or when it is critical that a data connection is not interrupted. A device has to use a unique identifier to communicate on a network. Therefore in the case of connecting to the global Internet, a public IP address has to be used.
The decision lies on the administration to choose whether a particular device needs a dynamic or static IP. But before we dig deeper into what affects the usage of static and dynamic IP, let's explain what IP address is first. It comprises four 8-digit binary numbers 0,1 , for simplification presented in a decimal range of separated by periods example An IP address is a unique differentiator that we can imagine as a physical street address.
To make things easier, when users access web services, IP addresses are translated to domain names by DNS servers. Thanks to DNS no one needs to type a series of numbers into the url and just type the name of the desired page. Today, the most widely used IP version is IPv4, but the newer version IPv6 is increasingly more popular since it offers a much wider range of unique addresses thanks to its format.
The IPv6 format consists of eight groups of four hexadecimal digits separated by colons. The best practice is to manually assign a static IP address to the device where continuous availability is critical.
For example, a static IP address is necessary if your computer is configured as a server, such as an FTP server or web server. If you want to ensure that people can always access your computer to download files, force the computer to use a static, never-changing IP address.
If the server was assigned a dynamic IP address, it would change occasionally, preventing your router from knowing which computer on the network is the server. If you want to access your home computer while you're on a trip or your work computer when you're at home, setting up the computer to use a static IP address lets you reach that computer at any time without fearing that the address will change and block your access to it.
A shared printer is another example of when to use a static IP address. If you have a printer that everyone in your house or office needs to share, give it an IP address that won't change no matter what. That way, when every computer is set up to connect to that printer, those connections remain indefinitely because the address never changes. Here are some other reasons to use static IPs:. Because a static IP address is assigned manually, it's less efficient for a network admin to give it out, especially in mobile situations.
Someone must visit the device in person to give it an IP address instead of letting DHCP assign the address automatically.
For example, you wouldn't set a static IP address on a smartphone because the moment it reaches another Wi-Fi network, the address might not be supported on that network, meaning that it won't be able to access the internet.
Dynamic addressing is more convenient in this situation because it's easy for administrators to set up. DHCP works automatically with minimal intervention needed, allowing mobile devices to move between different networks seamlessly. Businesses are more likely to use static IP addresses than home networks.
Implementing static IP addresses isn't easy and frequently requires a knowledgeable technician. However, you can have a static IP address for your home network.
When making static IP assignments for local devices on home and other private networks, the address numbers should be chosen from the private IP address ranges defined by the Internet Protocol standard:.
These ranges support thousands of IP addresses.
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