If you are thinking, "I need more IP addresses," you aren't alone. It's a common issue many people face. The purpose of this piece is to give you a basic idea of what this means, and three things to think about as you work through the process of establishing the new addresses. From an IT point of view, the benefit of having multiple IP addresses - is that it makes it easier to manage and configure devices that need to be accessed from the outside. You won't need to do PAT (port address translation). Instead you do NAT (network address translation), which is easier to manage and troubleshoot.
1. Why do you need more IP addresses? Here are a few common reasons:
- You are moving to a new physical location
- You are switching to a new IP (internet provider)
- You are adding devices that people are using to access your network from remote locations
2. How many do I need? Here is a brief guide to help you determine how many newIP addresses you will need.
- Do you have a website? If the answer is yes, you will need an IP address for that. An IP address is like a street address that points someone to a website. The user doesn't need to know the actual IP address. They type in the url, such as www.resolvedata.com, which converts to its actual numeric IP address through a process called Domain Name Resolution.
- Do you have an in-house exchange server? If you do, you will need an IP address for it. An exchange server is an email server.
- How many devices do you have that users are utilizing to access your network from remote locations? This includes SSL, VPN devices, firewalls, etc. You will need one iP address per device.
3. Domain Name Server (DNS) requirements. Once you have procured your new addresses, all records must be updated with new IP address information on all domain name servers. This can take several hours. It is not an immediate process.
Something else to keep in mind, as you implement changes to handle your current needs do so with an eye open to your future needs as well. A good information technology plan leverages current technology to support your business needs today and takes into consideration your future goals for growth. By planning for the future you can develop both a technology strategy and a budget to help you get to where you want to be.
Have you ever acquired more IP addresses for your company? Let us know how that worked out for you in the comment section below.