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Static vs Dynamic IP: What's the difference?
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Ever wondered why your internet sometimes feels different each time you connect? It could be your IP address. Here's what you need to know and how to choose the right type for home or work.
By Virgin Media Edit
- Published
- 9 May 2025
What is an IP address?
IP, short for Internet Protocol, is a unique string of numbers that identifies a device on a network, much like a mailing address identifies a house. Every device connected to the internet, whether it's your smartphone, laptop, or smart TV, relies on an IP address to communicate with the outside world.
IP addresses are numerical, but the internet uses the Domain Name System (DNS) as an internet address book so you can use web addresses like www.virginmedia.com instead of numbers to navigate the internet.
How IP addresses work?
When you access a website, your device sends a request over the Internet using your IP address. That request is routed through a series of servers, with your IP acting as the "return address" so the server knows where to send the requested data, like loading a webpage or streaming a video.
Behind the scenes, your router assigns IP addresses to devices on your local network. It communicates with your Internet Service Provider (ISP), which assigns your home or business a public-facing IP.
Think of your IP address like a street address for your device:
The IP address = your home address
The data packets = the mail
The internet = the postal service
What is a static IP address?
A static IP address is a fixed, manually assigned IP that does not change over time. Unlike dynamic IPs that are automatically rotated by your ISP, a static IP remains constant until it's manually changed or reassigned.
This type of IP is especially important for businesses, IT systems, and services that require consistent accessibility and reliable connectivity.
Static IPs are commonly used in:
Web servers and email servers
Remote access solutions (e.g., Remote Desktop Protocol)
Surveillance systems and IoT devices
Voice over IP (VoIP) systems
VPN connections that rely on fixed endpoints
How does a static IP address work?
A static IP address is a fixed address that’s manually assigned to a device and doesn’t change over time. Unlike dynamic IPs, static addresses stay the same every time you connect to the internet. This means:
Your IP stays the same, even after restarting your router or modem
There’s no lease time or automatic reassignment
The address is configured manually, often with help from your ISP
Because it’s permanent, a static IP is ideal for services that need consistent access, like hosting servers, using remote access tools, or setting up security systems.
Benefits of using static IP addresses
Since the IP address doesn’t change, devices and users can always connect without needing to constantly update settings. This makes it ideal for connecting to home or office networks, security cameras, file servers, or remote desktop applications. Users don’t need to constantly check or update IP details, ensuring smooth, uninterrupted access from anywhere.
Services like VoIP (voice over IP), online gaming, and VPNs require stable, low-latency connections. A static IP helps deliver consistent performance by avoiding the hiccups caused when an IP address changes mid-session. This means fewer dropped calls, smoother gameplay, and a more reliable VPN connection without frequent re-authentication.
IT teams can manage networks more easily, with consistent address mapping for devices like printers, servers, and firewalls. It also improves troubleshooting, since IP assignments don’t shift around the network.
Static IP addresses make it easier to work with Domain Name System (DNS) services. Since the IP address doesn’t change, it can be consistently linked to a domain name, making it ideal for hosting websites, email servers, or other online services.
Cons of using static IP addresses
Unlike dynamic IPs, static IPs may come with an extra monthly fee from your Internet Service Provider (ISP), especially in residential plans. These charges cover the reserved address and the infrastructure to maintain a consistent connection.
Because a static IP is always the same, it can become a predictable target for hackers and bots if not properly secured with firewalls and access controls.
Setting up a static IP often requires manual input on routers or individual devices, which can be time-consuming and prone to errors, especially in larger networks or users unfamiliar with network settings.
For most casual users, those who mainly browse, stream, or use social media, a static IP offers little benefit. The added cost, complexity, and maintenance make it unnecessary unless you're running servers, need advanced remote access, or manage a business network.
What is a dynamic IP address?
A dynamic IP address is an IP address that changes periodically and is automatically assigned to your device by a network service called DHCP (Dynamic Host Configuration Protocol). This is the most common type of IP address used today, especially for home internet users.
How does a dynamic IP address work?
When you connect to the internet, your Internet Service Provider (ISP) assigns your device a temporary IP address from a pool of available addresses. This address may change:
After a certain period (known as a lease time)
When your ISP’s DHCP server decides to reassign it
Because it’s assigned automatically and changes over time, you don’t need to manually configure or manage it.
Benefits of using dynamic IP addresses
Dynamic IP addresses are typically included with most broadband plans at no extra charge. Unlike static IPs, which can incur a monthly fee, dynamic IPs are the default, making them a budget-friendly option for home users who don’t need advanced networking features.
Dynamic IPs are assigned automatically using DHCP (Dynamic Host Configuration Protocol), allowing ISPs to efficiently reuse and rotate addresses among users. This reduces the chance of IP conflicts and simplifies network administration at scale.
Since dynamic IP addresses change periodically, they provide a basic layer of privacy. It becomes more difficult for websites, advertisers, or cybercriminals to track your online behaviour or target your device directly, especially when compared to a static IP.
With a dynamic IP, there’s no need to manually configure network settings. The router or device simply requests an IP from the ISP’s DHCP server, which assigns one automatically. This plug-and-play simplicity is great for non-technical users and everyday households.
Static vs Dynamic IP: Key differences
Here’s a comparison of some of the key differences between dynamic and static IP addresses:
A dynamic IP is ideal for everyday users who value simplicity and low cost, though it may cause occasionally cause lag.
In contrast, a static IP is better suited for businesses or users who need consistent, high-performance connectivity for real-time services like online gaming, video calls or live streaming.
Should you choose static or dynamic IP?
Choosing between a static IP and a dynamic IP will depend on how you use your internet connection and what level of control, access, and stability you need. While both types serve the same basic function: connecting your device to the internet, their capabilities and ideal use cases can differ.
Not sure which IP type you need? Ask yourself these quick questions:
Do you run a website or server?
If yes, a static IP is better because it keeps your connection consistent, making your hosted content always accessible.
Do you need to access your home or office network remotely?
A static IP makes remote access easier and more reliable, allowing devices and users to connect without constant reconfiguration.
Are you concerned about security?
A dynamic IP changes often, which adds some privacy. A static IP needs extra security, like firewalls, since it’s always the same.
Recommended IP by user type:
Here’s a quick breakdown of which IP address type is best suited for different kinds of users:
A dynamic IP is usually sufficient for everyday activities like browsing, streaming, and emailing. It’s also more cost-effective. It's automatically assigned and provides basic privacy.
While a dynamic IP works fine for most, a static IP may offer more stable connections for hosting game servers or livestreaming. Consider it if consistent, low-latency access is important.
A static IP is a better choice for businesses. Essential for reliable remote access, server hosting, VoIP, and VPNs. It gives you full control over networked services, just make sure to secure it properly.
Our broadband plans come with a dynamic IP by default for residential customers. This setup is ideal for everyday use like browsing, streaming, and social media.
Check if you have a static or dynamic IP
Not sure what kind of IP address you’re using? Start by logging into your router’s settings. Just type 192.168.0.1 or 192.168.1.1 into your web browser and enter your login details (you'll find these on the bottom of your Virgin Media Hub).
You can also use your computer’s Command Prompt: just open it and type ipconfig to see your current IP address.
Next, switch off your router and turn it back on. Once you’re back online, visit WhatIsMyIP.com to see if your IP address has changed. If it has, you’re most likely using a dynamic IP address. If it stays the same, you might have a static IP.
Upgrade to Virgin Media broadband
When it comes to choosing the right IP address setup, it really depends on how you use the internet.
All residential Virgin Media customers are provided with a dynamic IP address: it’s affordable, hassle-free, and ideal for everyday activities like browsing, streaming, and staying connected.
On the other hand, a static IP is better suited for users who need consistent, fixed access, like hosting websites, running servers, or managing remote connections for business.
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