Question

One day your supervisor walks to you, saying: "here is the network ID 192.168.0.0/24, please create three separate networks or subnets for a coffee shop: Sunny Cafe." The three separate subnets/networks are: One is for the office, one for the front desk and storage room, and one is for public use.
Required:
Your task is to list each subnet, network ID, subnet mask, Host ID Range, # of usable host IDs, and Broadcast ID

Answer 1

Answer:

See the explanation for the answer

Explanation:

Given, network address is: 192.168.0.0/24

The requirement is to create 3 subnets from this network.

3 is near to 4 in powers of 2 => 22

We need 2 bits for subnetting.

So, total number of network bits are: 24 + 2 = 26 bits

Number of host bits are: 32 - 26 = 6 bits [since total number of bits in a address is 32]

Total number of hosts in a subnet: 26 = 64 hosts

Total number of valid hosts: 64 - 2 = 62 hosts [2 => 1 is for network address and 1 is subnet mask]

    Subnet       Network ID                       Subnet Mask

       1              192.168.0.0/26               255.255.255.192

       2             192.168.0.64/26             255.255.255.192

       3             192.168.0.128/26            255.255.255.192

       4             192.168.0.192/26            255.255.255.192

Subnet Host ID range     #of usable host IDs      Broadcast ID

  1            192.168.0.1 -                    62                      192.168.0.63

               192.168.0.62                        

  2           192.168.0.65 -                 62                     192.168.0.127

               192.168.0.126

 3           192.168.0.129 -                 62                     192.168.0.191

               192.168.0.190

4             192.168.0.193 -                 62                    192.168.0.255

               192.168.0.254