IP addressing
IP Version 4 (IPv4) addresses are made up of four octet values (numerical values described by 8 bits) each separated by a full stop.
Example: 14.132.250.10 and 230.197.1.192
This provides only 4.3 billion addresses for 6 billion people.
There are no longer enough IPv4 addresses available - so Version 6 (IPv6) is used to extend this, giving enough for 340,282,366,920,938,463,374,607,431,768,211,456 separate addresses
Example: 0db8:85a3:0000:0000:8a2e:0370:7334
