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

An IP address is a unique number given to your computer by your internet service provider (ISP). It identifies your computer when it accesses the internet.

Dynamic IP addresses change - your computer will be allocated different ones at different times. Static IP addresses stay the same and can’t be moved between ISPs.

Note : Static IP and Dynamic IP now both come with an IPv4 address and IPv6 prefix.

A dynamic IP address is suitable if you have:

  • several computers on an internal network with internet access on all of them - dynamic IP addresses allow several devices to share limited address space
  • a single computer that connects to your head office on a one-way Virtual Private Network

A static IP address is suitable
if you:

  • run your own website
  • run your own email server
  • access a virtual private network from multiple PCs via a single broadband service
  • run an FTP server
  • use off-site server duplication
  • use certain security applications, like centralised cameras and polling software

Static IP addresses
have a number of advantages. They can give you:

  • less downtime - there is a risk of downtime when new dynamic IP addresses are allocated
  • remote access - you can access your own PC from anywhere in the world with static IP

Interested in getting a static IP address or changing your IP address options?


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