Calculating subnets for IP addresses in IPv6

Calculating subnets for IP addresses in IPv6

How do you do subnetting in IPv6?

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A customer usually gets a /48 address prefix from his provider. So he has 16 bits left for subnetting. You should not further subnet (i.e., do not use bits from the interface ID for subnets) because then the autoconfiguration mechanism would fail.

This was first published in December 2008