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Static IP Vs. Dynamic IP Addresses: Understanding the Differences
Author: Gary Hilson,Date published: September 29 , 2025,With the significance of network connectivity in today's connected world, it's essential to understand the difference between a static IP vs. dynamic IP address, their essential contribution to organizing the internet and how best to use them. Deciding between a static IP vs. dynamic IP address can help an organization better support remote users, so they can access the devices they need, no matter where they are, as well as facilitate access to any data, digital information, or services they need to be productive. Every device connected to the internet, or a private network using TCP/IP, has an assigned internet protocol (IP) address, acting as a unique identifier for that device. The most popular network protocol in the world, TCP/IP (Transmission Control Protocol/Internet Protocol), is the standard internet communications protocol that allows devices to communicate over long distances. TCP is the component that breaks down and reassembles the packets of data, while IP is responsible for making sure the packets are sent to the right destination. We will explore IP in this article. The IP address is a unique identifier for devices connected to a network, similar to a postal address. The first type of IP address was IPv4, which has been used since the. The was created to accommodate the growth of internet-connected devices by offering more IP addresses, but to this day, IPv6 is still not enabled by all content and transit providers or products. Older computers and Wi-Fi routers, for example, may not be IPv6-capable. IP addresses are managed and governed centrally through the Internet Assigned Numbers Authority, and although the was announced in 2011, IPv4 are still widely used thanks to technologies like Classless Inter-Domain Routing (CIDR) and Dynamic Host Configuration Protocol (DHCP). CIDR is an addressing scheme that improves the allocation of IP addresses, while DHCP is a network management protocol used on IP networks for automatically assigning IP addresses. What is the difference between a dynamic and static IP address? A static IP address is a permanent number assigned to a computer or device and does not change over time. However, a device that is connected to a dynamic IP address gets automatically assigned a temporary number that can change every time it reconnects with a network. A key aspect of understanding the difference between static IP vs. dynamic IP addresses, is that they are not the only kinds of IP addresses. So exactly what is a static IP address and what are the other kinds of IP addresses? When a static IP address is assigned to a device, it doesn't change until the associated services are disconnected or a request to release the IP address lease is submitted. Learn more in. Static assignments, even through a fixed dynamic address, can help support identity-based protections to authenticate the identity of the user or device. This can allow you to adopt practices such as whitelisting or allowlisting and/or ensure users have the necessary authorization and permissions to access certain applications, data, or services. However, a static IP isn't necessary because it's possible to use dynamic Domain Name System (DNS), where permissions and access are tied behind the scenes. The address might change, but the access is provided through the DNS name. This can be particularly useful for remote workers because static IPs can be used to verify permitted users to access a company network. Furthermore, the addition of private IP networking layers on security as each device will have their company's private IP address, ahead of with the likes of multifactor authentication and single sign-on (SSO), not directly routed over the public internet. Determining between dynamic vs. static IP addresses and when to use each one allows organizations to improve speed, reduce connection delays, address discrepancies and eliminate recognition errors from applications accessing data. Using a static IP vs. dynamic IP address means applications, users and systems accessing the data do not need to track IP address changes. As an example, if your organization is running an e-commerce website and handling payments, a static IP address combined with an SSL certificate is essential for securing customer data. Your organization may also need one if you're running certain third-party applications or scripts on your site. Global CEOs and other business leaders continue to recognize the. This is why it is important to build an understanding of IP addressing and other potential solutions. It's just as important to work with a trusted provider that can guide you and your business. Learn more about Verizon's suite of, which protect customer assets while providing users and devices access to approved resources, and how Verizon can help your business explore the. Call sales,Chat with us,Have us contact you,Get updates,Already have an account?,* Required,The information provided will be used in accordance with our terms set out in our . Please confirm you have read and understood this Notice,Verizon may wish to contact you in the future concerning its products and/or services. If you would like to receive these communications from Verizon, indicate by selecting from the dropdown menu below. Please note that you can unsubscribe or update your preferences at any time. By submitting the form, you are agreeing to receive insights, reports and other information from Verizon and affiliated companies in accordance with our . California residents can view our California Privacy Notice .
Learn moreWhat is Private IP? Guide to Understand Private IP
We've got some great deals going on right now exclusively for our online customers... chat now to hear more! What is private IP?,Be informed when securing your corner of the cloud. For businesses large and small, walls are coming down and physical boundaries are disappearing wherever markets are growing. More companies are going mobile as they expand their remote workforces to offer a more responsive customer experience. Others are taking advantage of new connectivity options to quickly, securely and affordably establish a presence closer to customers and new opportunities across the U.S. These companies have outgrown standard ways of getting online. They can no longer work with a single shared connection to the internet. At the same time, they're not ready for an enterprise-grade suite of private connections more typical of a multi-million-dollar organization with thousands of employees and a sky-high annual IT budget. They need a secure space in the cloud dedicated to their operations and data, one that suits their size, budget and specific bandwidth requirements. They also can't afford to invest in a whole new networking approach that may need considerable reconfiguring a year or two down the road. Many companies in this camp simply need to connect and collaborate via, for example, conference calling and messaging. They need a safe and efficient means for storing, sending and receiving large files across widely distributed locations. They need an online seat that is the right fit for current business conditions, and that can scale up or down, bandwidth-wise, as their operational situation changes. Private IP addressing often fits the bill for growing companies with limited IT resources. Private IP, or PIP, provides a simple, dedicated cloud-based network that allows businesses to consolidate applications into a single network infrastructure. It allows for relatively uncomplicated connectivity very similar to that of the public internet while enabling the flexibility, security and reliability of a gated network like a VPN. Whether your company is on the brink of major growth or struggling against the limitations of insufficient bandwidth for your current volume of business, consider whether private IP may be right for you. Take a look at a few frequently—asked questions before making your next networking move. What types of challenges are addressed by private IP?,Small- to medium-sized businesses often benefit from PIP addressing. Here's a scenario. A hiring firm—let's call it Brains Co.—has eight employees in a Chicago office. Brains is expanding operations and headcount into Seattle and Atlanta. The company has plans for two more offices in the next 20 months to accommodate clients in New York and Dallas. The five-year-old company has grown from two clients in the legal sector to more than 150 across the country in industries ranging from healthcare to IT and government affairs. Headcount will increase, and many of the new hires will work remotely and travel often. This company must regularly transfer large files in a wide range of formats. It also must conduct webinars and convene teleconferences across time zones on very short notice. It has compliance requirements to meet, and data must be kept carefully secured at all times. It regularly uses video for multi-site training and will need advanced collaboration and presence tools for its highly-mobile employees. Brains also doesn't have the resources to reconfigure an inappropriately architected network as it rolls out new services. For Brains Co. private IP can:,How does private IP return value?,Depending on how your PIP is structured, and what your service provider offers, ROI advantages can amount to an IT team at your fingertips. Your online-connections experience could be completely transformed. Private IP can:,So, what's under the hood? How does private IP work?,This is where things can get technical. Not hard, if you're an IT specialist, but arcane to many others. However, a cursory look at protocols and addressing may help clarify how the relatively simple PIP technology allows users to effectively communicate over a secure, efficient and flexible private-network infrastructure. It serves as a foundation for automating and streamlining business processes such as e-commerce, shared intranets and extranets. PIP provides connections into a private external network, or extranet, that move data and establish off-site, remote links. It does so in ways that are very similar to the public internet everybody uses to check social media, stream videos, download apps and more. The public and private IP versions use very similar protocols for routing. The public internet uses border gateway protocol (BGP) which is also used by most multiprotocol label switching (MPLS) networks on which PIP is based. This routing helps the user experience because working in PIP mode seems no different from using the public internet. It is widely tapped for communications between autonomous networks and has extensive routing policies for implementations of complex or simple networks. MPLS technology used by private IP allows for the integration of Layer 2 and Layer 3 routing. The layers are among the seven that comprise the OSI (Open Systems Interconnection) model of networking common in telecommunications for, among other things, cellular service. This network-service platform provides a base that is scalable, survivable and efficient without sacrificing performance. The private IP network is a closed and private MPLS backbone (meaning that it allows no internet connectivity). It doesn't support any direct customer-access connections. MPLS networks will automatically detect and dynamically re-route around transmission-path failures. With private networks, a distinct set of addresses has been established by the authorizing organization (Internet Assigned Numbers Authority) to locate computers on a specific PIP. For the public internet, the authorizing organization (Internet Corporation for Assigned Names and Numbers) has designated a different set of addresses for devices that access that public network, or internet. This way, the routing of signals to and from specific private IP networks is kept separate from the public internet, and from other PIP networks. These addresses, whether public or private, are like mailing addresses for homes and businesses. Every computing device that accesses a PIP or the public internet must have a distinct address in the appropriate range for connections to go through. It's like the incorrect or non-existent mailing address resulting in an undeliverable letter. Or paycheck. The private IP addressing architecture uses IPv4 and IPv6 specifications to define the private addressing ranges. IP packets that use addresses in these ranges cannot be routed through the public internet. Public IP addresses can be found through an internet lookup. Simply type "what is my IP address" into your browser address bar, and hit enter. Private IP addresses cannot be found this way. If you're curious about PIP addressing, how routers are NAT (network address translation) devices, and how machines and users routinely bounce to and from public and private networks everyday, all the time, there are infinite resources on the subject. Just search on "IP addresses: Everything you need to know," or something similar. What are the advantages and disadvantages of private IP?,The internet is teeming with cyber-pestilences and villains of every stripe. That's why data protection and privacy top the list of advantages for those who choose private IP. Devices aren't exposed to the public internet, so hackers have a harder time getting at them and their users. Private IP networks are isolated from other networks, making them less vulnerable to such common issues as external equipment malfunctions or connectivity loss. If a problem does occur, pinpointing its cause and solution is a simpler matter that can save precious time and budget dollars. Private IP networks involve additional setup and non-standard configurations. They also will not interact with the public internet; alternative solutions are needed. These are usually supplied by most service providers for users who want seamless access to both private and public (e.g. internet) networks. With PIP, the cost of server space and equipment, as well as for configuration and maintenance, is not spread across millions of users as it is with the public internet. Instead, the operator providing the private IP carries these costs, of which a portion is passed on to users. Is private IP right for you?,Now that you know more about what's involved with private IP, you should be better equipped to make informed decisions as your business grows. The technology is a popular choice for governments, enterprises, start-ups and businesses in the middle of the market. It can be an ideal solution for you, too, as you boost your network for that next big opportunity. Verizon offers a range of connectivity options tailored to organizations of all sizes in both the public and private sectors. from Verizon is an MPLS-based VPN service that delivers a simple network designed to grow with your business while helping you consolidate applications into a single, easy-to-use infrastructure. To learn more, visit us online. Connect users to applications with a reliable, scalable and flexible network. Let us manage your networking needs, so you can concentrate on business priorities. Get better peace of mind while you stay focused on your business goals. 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Learn moreWhat Is an IP Address? A Business Guide to IP Addresses
We've got some great deals going on right now exclusively for our online customers... chat now to hear more! Author: Poornima Apte,Date published: September 25, 2025,If you have ever asked "What is an IP address? or What is an IP address used for? the short answer is that an IP address is like a phone number for your internet-connected devices. It is a unique identifier. Any computer needs both an internal and external IP address to connect to another computer over a network using the internet's global language, the Internet Protocol, or IP. There are about four billion unique IP addresses. The , the group of engineers who invent and maintain the technology of the internet, specifies the format of these IP addresses. The IP version 4 format was invented in the 1980s and is still used. It looks like this: 192.168.107.13. The IETF created a newer format with much more room for addresses (more than the stars in the observable universe), so the internet can continue to grow in the future. With that established, let's explore what you'll need to know about IP addresses for your business. Your small- to medium-sized business (SMB) might have a network of its own, where all your computers and various devices are connected with each other. When you send a document to the printer, for instance, your PC uses the printer's IP address to send the data. This business network is private to you; no one else can connect to your printer. Accordingly, the IP address of the printer and of your PC are private addresses, and your network is known as a private IP network.,But you might also have a public service—for example, a catalog on the web where customers can view or order your merchandise or fill out a form. This service or web page must be running on a computer with a public or external IP address so that anyone on the internet can connect to and use the service. This public computer could be maintained for you by a commercial web hosting provider who assigns a public IP address to that computer, or your IT could maintain the computer on your own premises. In this latter case, your internet service provider (ISP) will assign you a public or external IP address to use. Now that you know the answer to the what is an IP address and what is an IP address used for questions, and now that you understand the difference between an internal and external IP address, how do they work as part of your ? When an employee in your business uses an online software as a service, for example, the machine in your network needs to talk to the machine at the other end. Since humans find it difficult to connect using IP numbers, they use a service called Domain Name System (DNS), which takes names like Google.com or Verizon.com and translates them to the corresponding public IP address so that your machine knows where to go. Businesses can choose whether they want addresses to be static or dynamic. Static addresses are constant, just like your business phone number, while the dynamic equivalent changes frequently. While there is an argument to be made for IP addresses to be dynamic to make security more robust, a confers many advantages, including:,In addition, static IP addresses increase reliability and are easier to manage. As the number of devices on business networks increases, SMBs have to manage ease of access with security. Answering the question What is an IP address? and understanding the difference between an internal and external IP address are the first steps in getting there. Learn how can help your business remain productive and online 24/7. Call sales,Chat with us,Have us contact you,Get updates,Already have an account?,* Required,The information provided will be used in accordance with our terms set out in our . Please confirm you have read and understood this Notice,Verizon may wish to contact you in the future concerning its products and/or services. If you would like to receive these communications from Verizon, indicate by selecting from the dropdown menu below. Please note that you can unsubscribe or update your preferences at any time. By submitting the form, you are agreeing to receive insights, reports and other information from Verizon and affiliated companies in accordance with our . California residents can view our California Privacy Notice . These cookies are necessary for the website to function and cannot be switched off in our systems. They are usually only set in response to actions made by you which amount to a request for services, such as setting your privacy preferences, logging in or filling in forms. You can set your browser to block or alert you about these cookies, but some parts of the site will not then work. These cookies do not store any personally identifiable information. These cookies allow us to count visits and traffic sources so we can measure and improve the performance of our site. They help us to know which pages are the most and least popular and see how visitors move around the site. We use both third party and first party cookies for this purpose. All information these cookies collect is aggregated and therefore anonymous. If you do not allow these cookies we will not know when you have visited our site, and will not be able to monitor its performance. These cookies enable the website to provide enhanced functionality and personalisation. They may be set by us or by third party providers whose services we have added to our pages. If you do not allow these cookies then some or all of these services may not function properly. These cookies may be set through our site by Verizon and third parties. They are used to present Verizon advertising on third party sites that you may visit. They do not store directly personal information, but are based on uniquely identifying your browser and internet device. If you do not allow these cookies, you will experience less targeted advertising from Verizon. BackClear Filters,All Consent AllowedWe use technologies to collect and share information about your use of our site. By continuing, you agree to the use of these capabilities for a better experience and other purposes. Learn more in our .
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