Network Layer IP Address Given an IP Address and a Network Mask Determine 1 st IP Address Network ID 1 st Assignable Address Last Assignable Address Last IP Address Broadcast Number of Devices ID: 768428
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Network Layer IP Address
Given an IP Address and a Network Mask Determine : 1 st IP Address (Network ID) 1 st Assignable Address Last Assignable Address Last IP Address (Broadcast) Number of Devices 2 (32-n) - 2
Given an IP Address and a Network Mask (/n) Determine : 1 st IP Address (Network ID) Find the n th bit in the IP address. All bits to the left stay the same; all bits to the right go to 0. 1 st Assignable Address Add 1 to the last (4 th ) decimal of the Network ID. Last Assignable Address Subtract 1 from the last (4 th ) decimal of the Broadcast. Last IP Address (Broadcast) Find the n th bit in the IP address. All bits to the left stay the same; all bits to the right go to 1. Number of Devices 2 (32-n) – 2 = use calculator.
10.252.49.52 / 24 Determine : 1 st IP Address (Network ID) 1 st Assignable Address Last Assignable Address Last IP Address (Broadcast) Number of Devices 2 (32-n) - 2
10.252.49.52 / 24 IP : 0000 1010 . 1111 1100 . 0011 0001 . 0011 0100 Mask : 1111 1111 . 1111 1111 . 1111 1111 . 0000 0000 Determine : 1 st IP Address (Network ID ) 0000 1010 . 1111 1100 . 0011 0001 . 0000 000010.252.49.01st Assignable Address 0000 1010 . 1111 1100 . 0011 0001 . 0000 000110.252.49.1Last Assignable Address 0000 1010 . 1111 1100 . 0011 0001 . 1111 111010.252.49.254Last IP Address (Broadcast) 0000 1010 . 1111 1100 . 0011 0001 . 1111 111110.252.49.255Number of Devices 2(32-n) – 2 = 2(32-24) – 2 = 2(8) – 2 = 256 – 2 = 254
10.252.49.52 / 28 Determine : 1 st IP Address (Network ID) 1 st Assignable Address Last Assignable AddressLast IP Address (Broadcast)Number of Devices 2(32-n) - 2
10.252.49.52 / 28 IP : 0000 1010 . 1111 1100 . 0011 0001 . 0011 0100 Mask : 1111 1111 . 1111 1111 . 1111 1111 . 1111 0000 Determine : 1 st IP Address (Network ID) 0000 1010 . 1111 1100 . 0011 0001 . 0011 0000 10.252.49.481st Assignable Address 0000 1010 . 1111 1100 . 0011 0001 . 0011 000110.252.49.49Last Assignable Address 0000 1010 . 1111 1100 . 0011 0001 . 0011 111010.252.49.62Last IP Address (Broadcast) 0000 1010 . 1111 1100 . 0011 0001 . 0011 111110.252.49.63Number of Devices 2(32-n) – 2 = 2(32-28) – 2 = 2(4) – 2 = 16 – 2 = 14
10.252.49.52 / 20 Determine : 1 st IP Address (Network ID ) 1 st Assignable Address Last Assignable Address Last IP Address (Broadcast) Number of Devices 2(32-n) - 2
10.252.49.52 / 20 IP : 0000 1010 . 1111 1100 . 0011 0001 . 0011 0100 Mask : 1111 1111 . 1111 1111 . 1100 0000 . 0000 0000 Determine : 1 st IP Address (Network ID) 0000 1010 . 1111 1100 . 0011 0000 . 0000 000010.252.48.01st Assignable Address 0000 1010 . 1111 1100 . 0011 0000 . 0000 000110.252.48.1Last Assignable Address 0000 1010 . 1111 1100 . 0011 1111 . 1111 111010.252.63.254Last IP Address (Broadcast) 0000 1010 . 1111 1100 . 0011 1111 . 1111 111110.252.63.255Number of Devices 2(32-n) – 2 = 2(32-20) – 2 = 2(12) – 2 = 4096 – 2 = 4094
10.252.49.52 / 12 Determine : 1 st IP Address (Network ID) 1 st Assignable Address Last Assignable AddressLast IP Address (Broadcast)Number of Devices 2(32-n) - 2
10.252.49.52 / 12 IP : 0000 1010 . 1111 1100 . 0011 0001 . 0011 0100 Mask : 1111 1111 . 1111 0000 . 0000 0000 . 0000 0000 Determine : 1 st IP Address (Network ID) 0000 1010 . 1111 0000 . 0000 0000 . 0000 000010.240.0.01st Assignable Address 0000 1010 . 1111 0000 . 0000 0000 . 0000 000110.240.0.1Last Assignable Address 0000 1010 . 1111 1111 . 1111 1111 . 1111 111010.255.255.254Last IP Address (Broadcast) 0000 1010 . 1111 1111 . 1111 1111 . 1111 111110.255.255.255Number of Devices 2(32-n) – 2 = 2(32-12) – 2 = 2(20) – 2 = 1,048,576 – 2 = 1,048,574