Given that there are over five billion internet users worldwide and an estimated 20 billion connected devices in 2025, how does all this digital traffic find its way to the right destination? The answer lies in IP addresses.

An IP address is a number used to identify every device or network that connects to the internet. But not all IP addresses are created equal: users have the choice between a static vs dynamic IP address. This choice can shape how you operate online and, for businesses, how reliably your services perform.

In this guide, we’ll run through the difference between static and dynamic IP addresses to help you decide which option is best for you.

Key takeaways on static vs dynamic IP addresses

Before we get into the details, here are three key takeaways on static vs dynamic IP addresses:

1. Static IP addresses remain fixed and never change. This provides consistent identification for devices that need to be reliably accessible (such as servers and business equipment).

2. Dynamic IP addresses change regularly. They are automatically assigned and are typically used for everyday consumer connections where a consistent address isn’t necessary.

3. The key difference between the two is that static IPs offer reliability and consistency (though often at an additional cost), whereas dynamic IPs offer flexibility and are sufficient for general use.

What is an IP address?

An IP (Internet Protocol) address is a unique number that is assigned to every device that connects to a computer network. When you send data across the internet, it needs to know where to go and where it came from, and IP addresses make this possible.

So, for example, when you’re browsing through the Hyperoptic website, your device will use its IP address to request information. Then, the Hyperoptic servers use that same address to send the requested web pages back to you. Without an IP address, data would have no way of finding its destination.

Most IP addresses use the IPv4 format, consisting of four sets of numbers separated by periods (for example: 192.168.1.100). However, to accommodate the growing number of devices connected to the internet, there are also IPv6 addresses, which use a more complex format, allowing for more variations (for example: 2001:0db8:85a3:0000:0000:8a2e:0370:7334).

Types of IP addresses

• Static IP: Manual, unchanging

• Dynamic IP: Auto-assigned, changes regularly

• Public IP: Address used on the broader internet

• Private IP: Used within internal networks

• IPv4 & IPv6: Two addressing systems, IPv6 is newer and more complex

What is a static IP address?

A static IP address is exactly what it sounds like–static, fixed and unchanging. When a device is configured with a static IP, it uses the same IP address every time it connects to the network.

It’s called a “static” IP because it remains constant. This stability makes it ideal for devices that need to be consistently accessible, like servers hosting websites or services that require reliable remote access. Static IPs are usually configured manually on the device itself or assigned by your Internet Service Provider (ISP).

At Hyperoptic, we include one static IP address as standard across all our business broadband packages, and you’ll also have the option to purchase more if needed. For our residential customers, you can add on a static IP for just £5 per month.

The pros and cons of a static IP address

A static IP address is particularly suitable for anyone hosting websites, email servers, or online services. It also offers better geolocation accuracy.

What is a dynamic IP address?

Unlike static IPs, a dynamic IP address changes periodically. Dynamic IP addresses are automatically assigned by a system called Dynamic Host Configuration Protocol (DHCP) when a device connects to a network.

It’s called “dynamic” because it’s not permanent. For example, your IP address might change when you restart your router, when your internet connection is re-established or after a certain period set by your ISP. In most cases, home internet connections will use a dynamic IP address as the default option.

At Hyperoptic, our home broadband packages come with a dynamic IP address as standard. Your IP address will change each time you connect your PC.

The pros and cons of a dynamic IP address

A dynamic IP address is a cost-effective solution that offers enhanced security and greater flexibility.

What is the difference between a static and a dynamic IP address?

The fundamental difference between static and dynamic IP addresses is their permanence. A static IP remains constant, while a dynamic IP changes over time.

In many cases, static IPs are a more suitable option for businesses, while dynamic IPs are ideal for standard home use and other situations where a permanent address isn’t necessary.

Is a static or dynamic IP better for business?

When comparing a static vs dynamic IP for business, remember that the benefits of static IP address vs dynamic IP address will depend on your individual needs and what you will be using the network for. For many businesses, a static IP address provides advantages that make it worth having, such as:

1. Reliable remote access: Allowing you to connect to your business systems from anywhere

2. VPN reliability: Business VPNs function more efficiently with static IPs

3. Efficient security monitoring: Security systems can easily monitor IP address changes and security breaches

4. Professional online presence: Websites and online services can be hosted reliably, giving your business a more professional online presence

A static IP can be essential to keep operations running smoothly. This is particularly important for businesses that:

• Host their own servers or websites

• Need reliable remote access

• Use special business applications

• Need consistent VoIP or video conferencing

• Operate E-commerce platforms

Read more: Business vs home broadband: What’s the difference?

How to check if your IP is static or dynamic

To check if your IP is static or dynamic, either contact your ISP or follow these steps (using a Windows PC):

1. Press the Windows key + R to open the Run dialog

2. Type “cmd” and press Enter to open Command Prompt

3. Type “ipconfig” and press Enter

4. Look for “IPv4 Address” under your active connection

5. Record this address, then restart your router and repeat the process

If the address changes, you’re using a dynamic IP. If it remains the same, you either have a static IP or your ISP has assigned you the same dynamic address again (to confirm, try restarting your router then repeating these steps for a third time).

If you’re a Hyperoptic customer and you need more guidance on this, please visit our Technical Support.

How to set a static IP address

So, you’ve decided on a static IP address. How do you go about setting one up?

Follow these steps:

1. Go to Control Panel > Network and Internet > Network and Sharing Center

2. Click Change Adapter Settings

3. Right-click your connection > Properties

4. Select Internet Protocol Version 4 (TCP/IPv4) > Properties

5. Select “Use the following IP address” and enter the appropriate values

Remember, for users on our home broadband packages, if you want a static public IP address for your entire connection (visible to the internet), you will need to get in touch to add this service to your account. For business broadband users, one static IP is included as standard.

Securing your IP address

In order to protect your network from unauthorised access and prevent cyber attacks, it’s crucial that you secure your IP address.

Here are some measures you can take to help protect your IP:

1. Use a VPN
   A Virtual Private Network (VPN) helps protect your IP address by routing any incoming traffic through an encrypted tunnel. This tunnel makes your data unreadable to anyone who might be trying to intercept it. It also masks your IP address by sending incoming traffic through various servers in different locations.

2. Update your router firmware regularly
   Using outdated firmware increases your risk of security vulnerabilities. We recommend enabling automatic updates, where possible, or regularly checking your router’s manufacturer site.

3. Use strong passwords on network devices
   Regularly change your usernames and passwords on both your router and devices connected to your network. Passwords should be strong and unique, including two-factor authentication (if possible).

4. Avoid using public Wi-Fi (or use a VPN)
   Where possible, avoid using public Wi-Fi. Public Wi-Fi can expose your IP and data to malicious users on the same network. If you do need to connect to a public Wi-Fi, a VPN can help encrypt your connection, making it more secure.

Ready to upgrade your online connection?

Experience a new level of smooth connectivity with Hyperoptic. We’ve got a range of packages available, catering to various needs and preferences.

So whether you’re a business seeking the reliability of a static IP or a home user wanting to make the most of our lightning-fast speeds with a dynamic IP, we’ve got you covered!

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