FROM A TO B... AND BACK!!

An Internet Protocol address (IP address) is a numerical label assigned to each device. There are two differents versions:

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• IPv4: Is the 4th version of IP that has 2 to the 32th power combinations/IP adresses. Each IPv4 adress has 32 bits (4 bytes). These bits are distributed in 4 groups of 8 bits:

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• IPv6: Is the 6th version of IP that has 16 to the 32th power combinations/IP adresses. With this version we can codify all the objects of the "Internet of Things". IoT is a network of objects which have a software that allows to identify the object.

Each IPv6 adress has 128 bits (16 bytes). This bits are distributed in 8 groups of 16 bits:

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Some people want to hide their IP adresses... But why? Here you have five reasons:

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1. Downloading ilegal things. 

2. Looking private information.

3. Having secret information about for example terrorist groups.

4. Spying other big countries.

5. Hiding your own information.