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A subnet is simply a range of addresses assigned for a particular layer 2 network. Not having a subnet is equivalent to not having addresses ... that does not r
by zAy0LfpBZLC8mAC 9y ago
A subnet is simply a range of addresses assigned for a particular layer 2 network. Not having a subnet is equivalent to not having addresses ... that does not really make sense.
- ceejayoz 9y agoWell, obviously you need one... I'm asking about multiple. IPv6 doesn't have broadcasting, and you've got 18 quintillion IPs in a /64, hence my question.
- zAy0LfpBZLC8mAC 9y agoWell, if you have multiple layer 2 networks, you need multiple subnets, and you should assign a /64 per layer 2 network for stateless autoconfiguration to work, so splitting a /64 into smaller pieces is not a good idea, therefore an ISP should give you at least a /56, better a /48, that you can subnet for any layer 2 networks that you might have.