Suppose an organization has been allocated the IPv4 address block 64.4.4.0/23. They want to subnet this...
Suppose an organization has been allocated the IPv4 address block 64.4.4.0/23. They want to subnet this block of addresses so that each subnet can support up to 200 valid IP addresses.
- What is the new subnet prefix length (in /n notation)
- What is the new subnet mask (in dotted decimal notation)
- What is the maximum number of host id’s that each subnet can support?
- List subnet id, the first valid host address, and the last valid host address for the first four subnets
Homework Answers
Ip notation:- a.b.c.d/n
Here,n indicates the no.of network id(NID) bits.
Given ip is 64.4.4.0/23
Total no.of bits in ip address is 32
32-23=9 bits
We were asked to create four subnets. Right?
To create four subnets, we require two bits from those available 9 bits.
Therefore, after subtract two boys from 9 bits, we'll be having 7bits.
7bits indicates the host id bits for each subnet.
It means 27-2 valid host addresses will be present in each subnet.
27-2 = 126
Hence, we can't create four subnets of each having ip addresses up to 200 with the given data
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