What Does a Public IP Address Do?
Public IP addresses differentiate the devices that are plugged into the public internet.
Each unit that accesses the internet uses a unique IP address.
Miguel Co / Lifewire
A public IP address is sometimes called an Internet IP.
Think of your public IP address as any other address you have.
Private vs. Public IP Addresses: What’s the Difference?
A private IP address is, in most ways, the same as a public IP address.
It’s a unique identifier for all the devices behind a router or other machine that serves IP addresses.
This is because private addresses are non-routable.
Excluding the addresses above, public IP addresses range from 1 to 191.
IPv6 address space is so large that the need for a private IP isn’t in demand.
However, there is a special unique unicast IP range of fc00::/7.
This range is global, though.
The most basic example would be when you’re using a remote access program.
It’s easy tofind your public IP address.
You’ll need tolog in to your routerto do that.
If you’re away, have a friend or co-worker do it for you.
You could also use a DDNS service, some of which are even free.
No-IP is one example, but there are others.
Why Public IP Addresses Change
Most public IP addresses change, and relatively often.
Any jot down of IP address that changes is called a dynamic IP address.
This general process is still in use today even though most people are always connected to the internet.
Home networks, on the other hand, are assigned dynamic IP addresses for the opposite reason.
This is one reason why having a static IP address is more expensive than having a dynamic IP address.
DDNS services are a way around this to some degree.
Networks that use static addresses would have to be re-configured to apply to their new location.
Doing a quick search on an IP-finding website would tell that website who your ISP is.
Using a VPN service adds another ISP at the end of your request before you open another website.
There are several free and paid VPN services that offer different features.
A few free VPN services include FreeVPN.me, Hideman, Faceless.ME, and Windscribe VPN.
If an outside gadget is breaching your web link, it has nothing to do with IANA.
SelectProperties>Internet Protocol Version 4 (TCP/IPv4).
Or, go toSettings>Wi-Fi>information icon>Configure IP>Manual.
TapModify online grid>Advanced options>DHCP, and change it toStatic.
