Subnetting with CISCO packet tracer

Specify subnet, IP range and simulated in CISCO packet tracer
Problem
PT. JAYA ABADI have :
Admin staff : 50 Host
Finance staff : 100 Host
Marketing staff : 25 Host
Specify the subnet and IP range, simulated in packet tracer

1. At the first, specify the subnet and ip range
To find a subnet you should use the above reference host existing host of multiples 2n and the difference should not be less than 2. For a multiple of 2n are used range from 2 to 256

And you find the string is : 2^n – 2 > hosts (to specify the host reference)
The formula up to 256 : 256 – hosts reference (D Class)
To over 256 : hosts / 256 (C Class) / 256 (B Class) / 256 (A Class)

100 Host, (2^n – 2) => 128
256-128 = 128 255.255.255.128 (Subnet)
IP address 192.168.1.0 – 192.168.1.127 (Range)

50 Host, (2^n – 2) => 64
256-64 = 192 255.255.255.192 (Subnet)
IP address 192.168.1.128 – 192.168.1.191 (Range)

25 Host, , (2^n – 2) => 32
256-32 = 224 255.255.255.224 (Subnet)
IP address 192.168.1.192 – 192.168.1.223 (Range)

2. If the subnet and IP address has been dicovered and then simulated in Cisco Packet Tracer
Configuration PC with Switch
Design in simulation using “switch”, “generic PC-PT” and “copper straight trought” like as the above picture.
3. And setting IP Address every “generic PC” according to the address that has been calculated (we use 2 computer for sample) like this
Setting IP Adress
4. if the IP address has been entered into this
Configured
5. Finally, the computer has been configured. The computer can accessing same staff, but can’t accessing diferent staff.

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