What Is a Static IP?

A static IP address is a numerical label assigned to a device on a network that remains constant over time. Unlike dynamic IP addresses, which can change each time a device connects to the network, a static IP address is manually configured and remains unchanged until it is explicitly modified by a network administrator.

Perimeter 81

29.12.2023

8 min read

The configuration of a static IP address involves manually assigning a unique set of numerical values to a device, including the IP address, subnet mask, gateway, and DNS servers. This process is typically performed through the device’s network settings or by configuring the router or server that manages the network. 

One of the primary benefits of using a static IP address is the reliability and predictability it provides. Since the address remains constant, devices with static IPs are easily identifiable on the network, facilitating tasks such as remote access, server hosting, and networked device management. Static IP addresses are particularly favored in scenarios where stable connections are crucial, such as for servers hosting websites, email servers, or virtual private networks (VPNs).

While static IP addresses offer stability and control, there are considerations and potential drawbacks. The manual configuration process can be more involved than relying on dynamic IP assignment, and errors in configuration may lead to network issues. Despite these considerations, static IP addresses remain a fundamental tool in networking, providing stability and consistency in an array of applications and settings.

The Difference Between Static IP and Dynamic IP

Static IP addresses and dynamic IP addresses are two distinct approaches to assigning numerical labels to devices on a network, and they play a pivotal role in how devices communicate over the internet. A static IP address is a fixed numerical identifier manually assigned to a device, while a dynamic IP address is automatically assigned by a Dynamic Host Configuration Protocol (DHCP) server each time a device connects to the network. Understanding the differences between these two types of IP addresses is crucial for configuring networks, managing devices, and ensuring seamless connectivity.

Static IP

Static IP addresses are configured manually and remain constant over time, providing a consistent identifier for a device on a network. Network administrators assign specific numerical values, including the IP address, subnet mask, gateway, and DNS servers, to ensure stability and predictability. 

Static IP addresses are often preferred for devices that require a permanent and easily identifiable presence on the network, such as servers hosting websites, email servers, or devices accessed remotely. While static IPs offer reliability and control, they may involve more complex configuration and are generally associated with higher costs compared to dynamic IPs.

Dynamic IP

Dynamic IP addresses, in contrast, are automatically assigned by a DHCP server when a device joins the network. The DHCP server manages a pool of available IP addresses and assigns one dynamically to each connecting device. Dynamic IP addressing is more flexible and efficient for large networks with a dynamic device population, as it reduces the chances of addressing conflicts. 

This approach is commonly used in home networks, small businesses, and public Wi-Fi networks. While dynamic IPs simplify network management and conserve address space, they may pose challenges for certain applications that require a consistent and unchanging network address, such as remote access or hosting specific services.

The Types of IP Addresses

We can further divide IP addresses into two groups – private IP and public IP.

Private IP

Private IP addresses are reserved for use within local networks and are not directly accessible from the public internet. They serve as unique identifiers for devices within a closed network environment, such as a home or business network. These dedicated IP address ranges are specifically designated for private network use and are not routable on the global internet.

Private IP addresses play a crucial role in network design by allowing multiple devices to share the same private address space within a local network. The use of Network Address Translation (NAT) further enables these devices to access the internet through a single public IP address. This conservation of public IP addresses is essential given the limited availability of IPv4 addresses. With the growing number of connected devices, including computers, smartphones, and smart devices, the use of private IP addresses has become a fundamental practice in ensuring efficient and secure communication within local network environments.

Public IP

A public IP address is a unique numerical label assigned to a device connected to the internet, making it globally accessible. Unlike private IP addresses used within local networks, public IPs are routable and can be reached from any location on the internet. Internet Service Providers (ISPs) allocate public IP addresses to individual users or devices, enabling them to communicate with other devices and services on the global network. Public IP addresses are essential for internet-facing servers, websites, and other services that need to be accessed by users worldwide.

Public IP addresses adhere to the Internet Protocol version 4 (IPv4) or Internet Protocol version 6 (IPv6) standards. IPv4 addresses consist of four sets of numerical values separated by dots, while IPv6 addresses use a more complex hexadecimal format. 

The scarcity of IPv4 addresses has led to the widespread adoption of IPv6 to accommodate the increasing number of connected devices. Public IP addresses are fundamental for establishing direct communication over the internet and play a critical role in supporting various online services, including web hosting, email servers, and online gaming platforms.

The Advantages of Static IP Addresses

One of the primary advantages of a static IP address is the consistent accessibility it provides. Unlike dynamic IP addresses that may change each time a device connects to the network, a static IP remains constant. This permanence is crucial for scenarios where uninterrupted and reliable access to a device or service is paramount.

Static IP addresses contribute to enhanced security and streamlined network management. With a static IP, network administrators have a predictable identifier for devices within the network. This aids in the implementation of security measures, such as firewalls and access controls, as the devices’ addresses remain consistent. 

Static IP addresses are highly beneficial for applications that require remote access or hosting services. In scenarios where users need to connect to a device or server from a remote location, a static IP ensures that the address remains constant, simplifying the connection process. 

Similarly, hosting services such as websites, email servers, and online applications benefit from static IPs by providing users with a reliable and unchanging point of access. This stability is essential for maintaining a seamless and continuous online presence.

The Disadvantages of a Static IP Address

Static IP addresses may pose security risks, especially when compared to dynamic IP addresses. Since static IPs remain constant over time, they can be more susceptible to targeted attacks. Malicious actors may identify and exploit devices with static IPs because their addresses are predictable. 

Another notable disadvantage of a static IP address is its lack of flexibility. In dynamic and rapidly changing network environments, managing a static IP configuration can be cumbersome. When devices are frequently added or removed from a network, the manual assignment of static IPs may lead to administrative overhead and potential configuration errors. This limitation can hinder scalability and the ability to adapt quickly to evolving network requirements.

Utilizing static IP addresses often comes with additional costs. Internet Service Providers (ISPs) may charge more for providing a static IP address, as it requires manual configuration and potentially consumes a finite pool of available addresses. 

For businesses or individuals operating on a tight budget, the higher cost associated with static IPs might be a disadvantage, particularly if the benefits of a constant address are not deemed essential for their network operations.

How to Get a Static IP Address

Setting up a static IP address involves configuring your device to use a specific IP address that doesn’t change automatically. Here’s a general guide, but keep in mind that the steps may vary slightly depending on your operating system:

Windows:

• Open Network and Sharing Center:
  • Right-click on the network icon in the system tray and select “Open Network & Internet settings.”
  • Click on “Change adapter options.”
• Access Adapter Settings:
  • Right-click on your network connection and choose “Properties.”
• Configure TCP/IP:
  • Scroll down and find “Internet Protocol Version 4 (TCP/IPv4)” in the list.
  • Select it and click on “Properties.”
• Set Static IP:
  • Choose the option to use a static IP address.
  • Enter the IP address, subnet mask, default gateway, and DNS server addresses.
  • Click “OK” to apply the changes.

macOS:

• Open Network Preferences:
  • Go to the Apple menu, select “System Preferences,” and click on “Network.”
• Select Network Connection:
  • Choose the network connection you’re using (Wi-Fi or Ethernet).
• Configure TCP/IP:
  • Click on the “Advanced” button.
  • Go to the “TCP/IP” tab.
• Set Static IP:
  • Choose “Manually” from the drop-down menu.
  • Enter the IP address, subnet mask, router (gateway), and DNS server addresses.
  • Click “OK” to apply the changes.

Android:

• Open Wi-Fi Settings:
  • Go to “Settings” and select “Network & Internet.”
  • Tap on “Wi-Fi” and select the network you’re connected to.
• Configure IP:
  • Tap on “IP settings” and choose “Static.”
  • Enter the static IP address, gateway, and DNS information.
  • Save the changes.

Keep in mind that you should use an IP address within your network’s range, and you need to avoid conflicts with other devices. Consult your router’s documentation for more specific details on available IP addresses and configuration settings. If you’re in a corporate environment, you may want to check with your network administrator before making changes.

Supercharge Your Business Security

Request Demo

Start Now

Protecting Your IP Address

Protecting your IP address is crucial to maintain your network security. We’ve discussed the two types of IP addresses: dynamic and static. But you may not even know which kind you have.

Visit whatismyipaddress.com to find your IP address. On this page, you can click on the box “Show Complete IP Details.”

This box will give you all of the details you need to know about your IP address, including knowing if it is dynamic or static.

Regardless of which kind you use, Perimeter81 is your network security partner to help maximize your network’s capabilities and protect from the many malicious attacks that you may face.

Supercharge Cybersecurity with Perimeter81

If you’re ready to learn more about how Perimeter81 can help as your IP address security solution, reach out to us to help build out your network with the right security that you need.

Whether it’s static, or dynamic, we have the tools and expertise to help you out. We look forward to partnering with you and your growing business!

FAQs