An IP (Internet Protocol) is basically like the computer or the device is identified on the internet. Any computer or device connected to the Internet must be assigned a logical IP address if it is from your ISP (Internet Service Provider) or the local router's DHCP server (Dynamic Host Configuration Protocol).
You can think of an IP address, such as the license plate of a vehicle. Each vehicle driving on the road (legally) has a plaque which is registered to the local DMV. The plaque is a bit 'as the car's identity card, which allows someone (usually a police officer) to run the plate and find out all kinds of information on the owner of the vehicle in which the license plate is registered. An IP address works the same way. Each computer surfing the web should have some type of identifying the IP address, be it an IP assigned to the actual computer, the router is connected to the computer, or proxy server your computer is connected. The address is what identifies a computer on the web as a plaque that identifies a vehicle on the road.
A MAC (Media Access Control) address the other part is the physical address of the NIC (Network Interface Card) in your computer (something as a serial number). On the transmission network, such as Ethernet, the MAC address uniquely identifies each node (workstation / computer) for the delivery of specific packages. If you like analogies, you can kind of compare the MAC address of a network card the vehicle identification number of a vehicle. MAC identifies the physical network hardware such as VIN of a vehicle identifies a particular vehicle.
The reason why I chose a vehicle for my analogies is to help readers understand that a dynamic IP address can change, just as the license plate number of a vehicle can be changed. But a MAC address (in most cases) can not be changed as VIN of a vehicle can not be changed.
a static IP address but an IP address that remains constant and never changes (and usually have to pay a fee for). Have a static IP is useful for those who run the servers, or any type of equipment which is necessary for the IP address to remain always the same.
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