What is the subnet mask and how many subnets can be created for the given Class B IP Address 137.17.0.0 with a subnet mask of 255.255.240.0?
The subnet mask for the given Class B IP Address 137.17.0.0 is 255.255.240.0, which can be represented in binary as 11111111.11111111.11110000.00000000. With this subnet mask, we can create a total of 16 subnets.
Understanding Subnetting Class B IP Address with Subnet Mask 255.255.240.0
Subnet Mask:
The subnet mask 255.255.240.0 indicates that the first 20 bits are used for network identification and the last 12 bits are available for host assignment.
Calculating Subnets and Hosts:
To determine the number of subnets that can be created, we count the number of zeros in the subnet mask. In this case, there are 4 zeros, allowing for 2^4 = 16 subnets. Each subnet can accommodate 2^12 - 2 = 4094 usable host addresses, after subtracting the network address and broadcast address.
Subnet Details:
First Subnet:
Subnet Address: 137.17.0.0
First IP Address: 137.17.0.1
Last IP Address: 137.17.15.254
Broadcast Address: 137.17.15.255
Second Subnet:
Subnet Address: 137.17.16.0
First IP Address: 137.17.16.1
Last IP Address: 137.17.31.254
Broadcast Address: 137.17.31.255
Third Subnet:
Subnet Address: 137.17.32.0
First IP Address: 137.17.32.1
Last IP Address: 137.17.47.254
Broadcast Address: 137.17.47.255
Last Subnet:
Subnet Address: 137.17.240.0
First IP Address: 137.17.240.1
Last IP Address: 137.17.255.254
Broadcast Address: 137.17.255.255
In summary, for the given Class B IP Address 137.17.0.0 with a subnet mask of 255.255.240.0, we can create 16 subnets with 4094 usable host addresses each. The subnet addresses, first and last IP addresses, and broadcast addresses for each subnet have been calculated accordingly.