Suppose you are an ISP that owns a /15 address CIDR block starting at 20.160.0.0.

Answer the following questions to allocate address blocks to 5 customers who want to pay for the smallest CIDR blocks to support 33 users and keep the remaining addresses in one large contiguous block.

a. What is the new submask in slash notation for each customer?

b. How many valid hosts can each customer actually allocate?

c. Show start and end addresses of each sub-block?

d. How big is the remaining CIDR block?

Now divide the remaining contiguous large block for 10 more customers that want to pay for the smallest CIDR block to support 16 users and you want to keep the remaining address in one large contiguous block.

e. What is the new submask in slash notation for each customer?

f. How many valid hosts can each customer actually allocate?

g. Show starting and ending addresses of each subblock?

h. How big is the remaining CIDR block?