Subnetting Calculation for IP Address 1.4.23.73/28

What are the Network ID, First IP, Last IP, and Broadcast IP addresses for the IP address 1.4.23.73/28?

Calculate each component based on the given subnet mask.

Answer:

For the IP address 1.4.23.73/28, the Network ID is 1.4.23.64, the First IP address is 1.4.23.65, the Last IP address is 14.23.78, and the Broadcast IP address is 14.23.79.

Subnetting involves dividing an IP network into subnets to improve network performance and security. In this case, the IP address 1.4.23.73/28 means that the subnet mask is 28 bits long.

To calculate the Network ID, we identify the network portion of the IP address by applying the subnet mask. In this scenario, the first 28 bits correspond to the IP address 1.4.23.64, making the Network ID 1.4.23.64.

Next, to determine the First IP address, we increment the last octet of the Network ID by 1, resulting in 1.4.23.65. For the Last IP address, we subtract 2 from the total number of addresses in the subnet (as there are 16 addresses in this case), giving us 14.23.78.

Finally, to find the Broadcast IP address, we add 1 to the Last IP address, resulting in 14.23.79. Therefore, for the IP address 1.4.23.73/28, the Network ID is 1.4.23.64, the First IP address is 1.4.23.65, the Last IP address is 14.23.78, and the Broadcast IP address is 14.23.79.