Question: how are ipv6 addresses allocated?
Answer: IPv6 addresses An Ipv6 address uses 128 bits as opposed to 32 bits in IPv4. Because an hexadecimal number uses 4 bits this means that an IPv6 address consists of 32 hexadecimal numbers. These numbers are grouped in 4's giving 8 groups or blocks. The groups are written with a : (colon) as a separator.