Topic

Subnetting

2 questions in this topic.

2013 Q3(e)Network Layer / IPSubnetting· 3 marks

Consider a router that interconnects three subnets: Subnet 1, Subnet 2, and Subnet 3. Suppose all of the interfaces in each of the three subnets are required to have the prefix 223.1.17/24. Also suppose that Subnet 1 is required to support upto 125 interfaces, and Subnect 2 and 3 are each required to support up to 60 interfaces. Provide three network addresses (of the form a.b.c.d/x) that satisfy these constraints.

IP addressingCIDR

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2015 Q4(c)Network Layer / IPSubnetting· 7 marks

You have a network 115.64.4.0/22 that you want to create subnets on. The subnets need to support up to 60 hosts each. How many bits would you allocate for the host part of the subnets? How many such subnets can you support?

IP addressingCIDR

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