Private vs. Public IP Addresses

Dear Axe,

Every computer has a public IP address that is assigned to the user by their internet service provider (ISP). This address has to be unique across the entire internet. 

Your router has a private IP address, and that address is allowed only on private networks. Unlike your computer's public address, your router's private address doesn't need to be globally unique, since it is not a direct access address. What this means is that your router's private address is only accessible from a private network. This is good for people who don't want anyone that is not a part of their private network to access the IP address that is 192.168.0.1. 

Internet Assigned Numbers Authority (IANA) The Internet Assigned Numbers Authority (IANA) is a big-time organization that deals with IP addresses from all over the world. This organization initially came up with a special type of IP address that we all know as IP version 4 (IPv4). The IP version 4 is a 32-bit number that is usually expressed as four numbers separated by a decimal point. Public IP Addresses Public IP addresses need to be unique in pretty much every sense of the word. Back in the day, this posed a problem for the IPv4 system, since it could only accommodate about 4 billion different addresses. But the IANA came up with a solution to this problem when they introduced the IPv6 standard. And as you may imagine, the IPv6 system supports way more combinations than the IPv4 system. Private IP Addresses The Internet Assigned Numbers Authority has decided to make some certain number blocks private. 

There are about 17.9 million different private IP addresses, all of which are reserved for use on private networks. That is one of the main reasons why a router's IP address doesn't need to be unique. Whether it's a big-time organization or just a small home network, the router assigns a private IP address that is connected to its network. Every single device that is a part of that network can connect to one another using this private IP address. Another essential thing that you need to know about private IP addresses is that they cannot access the internet. In other words, private addresses need to establish an internet connection through an ISP first.

Thank.

Hi User,

check below,

Dear,

Please see the differences between private and public IP addresses in this table.

Thank you.

In fact, this can be simply understood:
A private IP address, often referred to as an RFC1918 address, is an address that is used by a company or organization within its own network for non-public purposes in accordance with IETF RFC1918.
Private IP addresses cannot be directly connected to the Internet because they cannot be transmitted through routers.

IP addresses are uniformly assigned by the Internic (Internet Information Center) to ensure the uniqueness of IP addresses. However, there is a class of IP addresses that can be directly used in the enterprise Intranet without application. This is Private Address,Private Address

Address will not be forwarded by any router on the Internet. To access the Internet, you must use NAT/PAT conversion. The private Address is accessed as a public IP Address.

10.0.0.0-10.255.255.255(one Class A address) 

172.16.0.0-172.31.255.255(16 Class B addresses) 

192.168.0.0-192.168.255.255(256 Class C addresses)

Public IP addresses, on the other hand, are usually owned by large companies or Internet service providers (ISPs) for public use, so that they can be connected to public networks such as, for example, the Internet.
When a user signs a network service agreement with an Internet service provider, the user is assigned a legitimate IP address number from the public IP address pool of the Internet service provider.

I hope I can help you.