Understanding IPv6 Addressing
An IPv6 address, as previously mentioned, is 128 bits long, as compared with IPv4 32-bit addresses. The address itself uses hexadecimal format to shorten the nonbinary written form. Take, for example, the following 128-bit IPv6 address written in binary:
11111110100000000000000000000000000000000000000000000000000000000000001000001100001010011111111111111110010001000111111000111111
The first step in creating the nonbinary form of the address is to divide the number in 16-bit values:
1111111010000000 0000000000000000
0000000000000000 0000000000000000
0000001000001100 0010100111111111
1111111001000100 0111111000111111
Each 16-bit value is then converted to hexadecimal format to produce the IPv6 address:
FE80:0000:0000:0000:020C:29FF:FE44:7E3F ...
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