Question

An organization is granted the block 211.17.180.0/16. The administrator wants to create 300 subnets.
a. Find the subnet mask that will be configured on each subnet.
b. Find the number of addresses in each subnet.
c. Find the first and last useful host addresses in subnet 1.
d. Find the first and last IP addresses in subnet 299.
e. Find the 50th and 100th IP addresses in subnet 300.

Answer 1

Answer:

 a. This is a class C network. So the default mask is given by, 255.255.255.0 As we need 32 subnets we need 5 extra I’s. So the subnet mask will be as follows in the binary form. The subnet mask is therefore given by, 255.255.255.248 b. The structure of a class C address is as shown in Figure as given below: We have only 3 bits to decide the number of addresses in each subnet. No. Of addresses per subnet 23 = 8 c. First address in...