Accenture, a leading IT service provider has hired you as their Network Engineer to design their
corporate network. The company has got a pool of IP address as 172.2.0.0, which they have to
divide into 7 subnets for each of their branches. They have a requirement of up to 8189 hosts in each
of their branch offices situated at Mumbai, Bhubaneswar, Bangaluru, Hydrabad, Pune, Kolkata and
Chennai. Design the subnets for given locations and findout the NETWORK ADDRESS, BROADCAST ADDRESS and POOL OF IP ADDRESSES for each locations. Do not use
172.2.0.0 as NETWORK ADDRESS in any of the subnets.
Answers
Answer:
To give each of its 1500 machines an IP address, an organisation needs a range of IP addresses. For this task, the organisation has contacted an Internet service provider (ISP). The ISP employs CIDR and fulfils requests using the IP address range 202.61.0.0/17 that is readily available. The ISP wants to assign the organisation an address space that uses route aggregation to reduce the number of routing entries in the ISP's router 00000000.00000000 00000111.11111111 (0.0 7.255) = 11 bits for host address 202.61.0.0/17 11111111 11111111 10000000 00000000 255.255.128.0 = ceiling (log2 (1500)) = ceiling (10.55) = 11 bits for host address
00001000.00000000 → 00010000.00000000 (8.0 - 15.255) (8.0 - 15.255)
00001111.11111111 → 00010111.11111111 (16.0 - 23.255) (16.0 - 23.255)
The numbers in the sequence are 0, 8, 16, 24, 32, 40, 48, 56, 64, 72, 80, 96, 104, and 112.
Because 64 and 104 are present in that order, it is the possible IP addresses.
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