Student Name: ___________________________
CHABOT COLLEGE
CISCO NETWORKING ACADEMY I
10C - Subnet Planning & Application
Instructions
 Plan a subnetting strategy for Example 2. Example 1 is done for you as a model.
 On each subnet, write the subnet number (the starting address of that subnet).
 Here are the key planning questions:
 How many subnets do I need?
 How many hosts must the subnets be able to support?
Example 1
 You have one Class C network: 194.82.10.0
 Two subnets:
 52 hosts in the Sales Dept
 12 hosts in the Manufacturing Dept.
 Subnet mask: /26 (255.255.255.192)
 Subnet numbers are shown below:
194.82.10.64
Sales Dept.
194.82.10.128
Manufacturing Dept.
Example 2
 You have one Class C network: 204.16.20.0
 You need three subnets:
 28 hosts in the Business Office
 12 hosts in the Engineering Dept
 8 hosts in the Advertising Dept.
1. What subnet mask will you use? _____________________________________
2. Write the subnet numbers on the diagram below:
Business Office
Engineering Dept.
Advertising Dept.
3.
With this plan, how many hosts in total can be supported on the three subnets combined? _______
4.
How many hosts could you support if you used all the valid subnets you created? __________
That is a lot less than the 254 host that can be supported by a class C network. Why is the total so small?
5.
What will happen if the Business Office hires more people and needs to add 10 hosts? What could we do then?
END | SUBMIT