Determining the Number of Subnets that can be Created from a /48 IPv6 Prefix

A network administrator has received the IPv6 prefix 2001:DB8::/48 for subnetting. Assuming the administrator does not subnet into the interface ID portion of the address space, how many subnets can the administrator create from the /48 prefix? 16 256 4096 65536

 

To determine the number of subnets that can be created from a given IPv6 prefix, we need to calculate the subnet prefix length. In this case, the given prefix is /48.

An IPv6 address consists of 128 bits, and the prefix length specifies the number of bits used for the network portion. In a /48 prefix, the first 48 bits are used for the network portion, leaving the remaining 80 bits for the interface ID portion.

To calculate the number of subnets, we need to determine the number of possible values for the bits in the network portion. Since the network portion is 48 bits long, there are 2^48 (or 2 to the power of 48) possible values.

Therefore, the number of subnets that can be created from the /48 prefix is 2^48.

Calculating 2^48 = 281,474,976,710,656

So, the network administrator can create 281,474,976,710,656 subnets from the /48 prefix.

More Answers:
Determining the Subnet Address for IPv6 Address 2001:D12:AA04:B5::1/64
Strategies for IPv4 and IPv6 Coexistence: Tunneling, Dual IP Stack, and Protocol Translation
Understanding Subnetting: IP Address 192.168.1.15/29 and Address Types

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