Less than 10% of IPv4 Addresses Remain Unallocated, says Number Resource Organization
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Did you know...?
The field ‘Total Lengh’which is part of the IPv4 header, is not found in the IPv6 header. Its function was to count the size of the packet payload plus the size of a variable lenght header. As the IPv6 header has a fixed size, the presence of this field is unnecessary.
