Binary Method Example 3

172.16.129.1/17

FIRST CONVERT THE CONCERN & THE REMANING OCTET INTO BINARY

172.16.10000001.00000001

1. Network/Subnet Address (Host portion = 0)

• 172.16.10000000.00000000

• Network Address = 172.16.128.0

  2. First Host Address in a Subnet (Host portion = 0 except the last bit as 1)

• 172.16.10000000.00000001

• First Host Address = 172.16.128.1

  3. Last Host Address in a Subnet (Host portion = 1 except the last bit as 0)

• 172.16.11111111.11111110

• Last Host Address = 172.16.255.254

  3. Broadcast Address (Host portion = 1)

• 172.16.11111111.11111111

• Broadcast Address = 172.16.255.255

Reference:

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