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Private and Public IP Addresses (view source)
Revision as of 22:10, 6 January 2018
, 22:10, 6 January 2018no edit summary
Internet Protocol (IP) addresses are of two types: '''Public''' and '''Private'''.
Internet Protocol (IP) addresses are of two types: '''Public''' and '''Private'''.
A router will typically have two network interfaces.
''An Internal Interface''
''An external Interface''
Each of these interfaces will have an IP address.
== Public IP address ==
== Public IP address ==
'''A public IP address''' (External) is assigned to every device that connects to the Internet where each IP is unique. In this case, there cannot exist two device with the same public IP address all over the Internet. This addressing scheme makes it possible for the devices to “find each other” online and exchange information. User has no control over the IP address (public) that is assigned to the device. The public IP address is assigned to the device by the Internet Service Provider as soon as the device is connected to the Internet.
'''A public IP address''' (''External'') is assigned to every device that connects to the Internet where each IP is unique. In this case, there cannot exist two device with the same public IP address all over the Internet. This addressing scheme makes it possible for the devices to “find each other” online and exchange information. User has no control over the IP address (public) that is assigned to the device. The public IP address is assigned to the device by the Internet Service Provider as soon as the device is connected to the Internet.
A public IP address can be either '''static''' or '''dynamic'''.
A public IP address can be either '''static''' or '''dynamic'''.
==Private IP address==
==Private IP address==
'''Private''' (Internal) means the IP address can only be used by those on the same network.
'''Private''' (''Internal'') means the IP address can only be used by those on the same network.
Devices with private IP addresses cannot connect directly to the Internet. Likewise, computers or other devices outside the local network cannot connect directly to a device with a private IP.
Devices with private IP addresses cannot connect directly to the Internet. Likewise, computers or other devices outside the local network cannot connect directly to a device with a private IP.
