IPv4 and IPv6 uses different formats:
Address space: 128 in IPv6 and 32 in IPv4
Representation : String representation in IPv6 while it is integer representation in IPv4
Length: Including field separators it is 39 in IPv6, while it is 15 in IPv4
Notation: Hexadecimal notation in IPv6, while it is decimal in IPv4
Below given are some bullet points on the benefits of IPv6 over IPv4
- larger address space
- simplified header format
- automatic configuration
- more efficient routing
- improved quality of service and security
- compliance with regulatory requirements
- widespread use in global markets
Below given few examples of IPv6 addresses:
FE80:0000:0000:0000:0202:B3FF:FE1E:8329 => 128 bit address in eight 16bit in the format global:subnet:interface
FE80::0202:B3FF:FE1E:8329 => example of a collapsed address where two consecutive colons represent 16bit blocks that contain zeros.
[2001:db8:0:1]:80 => with a port number. brackets can be omitted if the port number is not present
http://[2001:db8:0:1]:80 => URL containing IPv6 address.
references:
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