Practical - Subnetting - Documentation Template

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Macquarie University *

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Apr 3, 2024

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Data Communications Subnetting Data Communications Laboratory Subnetting Your Name: Thi Phuong Thao Nguyen Your Student ID: 47384891 Documentation Task 1 . AND the following IP addresses to determine whether the destination IP address belongs to a host on a local network or a remote network . Source IP address : 10011001 10101010 00100101 10100011 Mask : 11111111 11111111 00000000 00000000 Destination IP address : 11011001 10101010 10101100 11101001 Source IP address: 10011001 10101010 00000000 00000000. <<< network Destination IP address: 11011001 10101010 00000000 00000000. <<<< network The destination IP address belongs to a remote network as it have different networks. Documentation Task 2. (Get your demonstrator to check your answers) Determine the number of bits that need to be borrowed from the host portion of the network address and the number of bits that will be left for host addresses.
Data Communications Subnetting Fill in the table on the following page of this document for all the subnets that your subnetting of the network creates. This may be more than actually needed to satisfy the above requirement. Network address: 197.15.22.0 Divide into 4 usable subnets. At least 25 will be needed per subnet. Brief: As it need at least 25 subnets so it should be 5 host as 2 ^ 5= 32 (which can contain 25). After that, it should be 3 mains as 8-5 = 3.
Data Communications Subnetting Subnet Num- ber Subnet ID binary value Host bits binary range Last octet binary range Last octet decimal range IP range Usable Examle #0 00… …0000-…1111 00000000-00..1111 0-2 n -1 197.15.22.0- 197.15.22.2 n -1 Y/N? 0 000 000 00000 11111 000000000 000111111 0 31 197.15.22.0 197.15.22.31 N 1 001 001 00000 11111 001000000 001111111 32 63 197.15.22.31 197.15.22.63 Y 2 010 010 00000 11111 010000000 010111111 64 95 197.15.22.64 197.15.22.95 Y 3 011 011 00000 11111 011000000 011111111 96 127 197.15.22.96 197.15.22.127 Y 4 100 100 00000 11111 100000000 100111111 128 159 197.15.22.128 197.15.22.159 Y 5 101 101 00000 11111 101000000 101111111 160 191 197.15.22.160 197.15.22.191 Y 6 110 110 00000 11111 110000000 110111111 192 223 197.15.22.192 197.15.22.223 Y 7 111 111 00000 11111 111000000 111111111 224 255 197.15.22.224 197.15.22.255 N
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Data Communications Subnetting
Data Communications Subnetting Use the table just developed to help answer the following questions: 1. Which octet(s) represent the network portion of a Class C IP address? First 3 octets 2. Which octet(s) represent the host portion of a Class C IP address? Last one octets 3. For the subnets you defined how many bits in total represent the network portion of the IP address? 27 bits ( as we using 24 octet and 3 binary octets) 4. For the subnets you defined how many bits are left in the fourth octet for host IDs? 5 bits (8 -3 = 5) 5. What subnet mask must be used for the subnets you defined? Give the subnet mask in both decimal and binary. 255.255.255.244 6. What is the maximum number of subnets that can be created with this subnet mask (in answering this question ignore the consideration of whether a particular subnet is usable or not) 32 7. What is the maximum number of useable subnets that can be created with this mask? 30 8. How many hosts per subnet can be in the subnets you have created? Assume the lowest and highest host ID in each subnet cannot be used. 30 9. Why can’t the lowest and highest address in each subnet be used? As it has the same IP address 10. What is the maximum number of hosts that can be defined for all subnets with this scenario if the all 0’s and all 1’s subnets cannot be used but all others can be? Assume the lowest and highest host ID in each subnet cannot be used. 240 11. Answer the previous question again, but now assume the all 0’s and all 1’s subnets can be used 256 12. Is 197.15.22.63 a valid host IP address with this scenario? Why or why not? No as it the highest range in one subnet in this scenario 13. Is 197.15.22.160 a valid host IP address with this scenario? Why or why not? Yes as it the lowest range in one subnet in this scenario
Data Communications Subnetting Host A has an IP address of 197.15.22.126. Host B has an IP address of 197.15.22.129. Are these hosts on the same subnet? Why?
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