I hope you to help me with the question c,d,e and filling the table!

Network Topology B

The network topology from Part 1 has expanded to accommodate the addition of router R3 and its accompanying network, as illustrated in the following topology. Use the 192.168.10.0/25 network address to provide addresses to the network devices, and then design a new addressing scheme to support the additional network requirement.

Step 1: Determine the number of subnets in Network Topology B.

a. How many subnets are there? _____4______

b. How many bits should you borrow to create the required number of subnets? __2_______

c. How many usable host addresses per subnet are in this addressing scheme? ___________

d. What is the new subnet mask in dotted decimal format? _________________________

e. How many subnets are available for future use? _______________

Step 2: Record the subnet information.

Fill in the following table with the subnet information:

Subnet Number	Subnet Network Address	Broadcast Address	First Usable Host Address	Last Usable Host Address
0
1
2
3
4
5
6
7

PC-A PC-B PC-C so/o/0 R2 so/o/ so/o/1 G0/1 so/o/o G0/1 S1 R1 R3 S3