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CIS151 Networking IIÂ Unit 2 Â Lesson 4 Lab1- IP Addressing and Subnetting Worksheet 1
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PART I:
Fill in the private address ranges for:
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Class A ____________________________________Default Mask _________________
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Class B ____________________________________Default Mask _________________
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Class C _______________________________________Default Mask _________________
Fill in the blanks by first converting to decimal. Look for patterns.
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|
1st Octet Binary |
Decimal # |
Class |
What is the binary bit pattern for all numbers in this class network? |
|
00100001 |
 |  |  |
|
01111111 |
 |  | |
|
10000001 |
 |  |  |
|
10111111 |
 |  | |
|
11000001 |
 |  |  |
|
11011101 |
 |  |
Determine the correct decimal equivalents
|
Binary |
 Decimal Equivalent |
Could this number be part of a subnet mask? |
|
11000000 |
 |  |
|
11100000 |
 |  |
|
11110000 |
 |  |
|
00001111 |
 |  |
|
01100000 |
 |  |
What binary pattern do you see that could identify a valid subnet mask number?
________________________________________________________________
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Given the specified # of subnetworks, specify the correct # bits needed
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|
#subnetworks |
# bits required beyond the stated default mask |
|
 8 |
 |
|
16 |
 |
|
32 |
 |
|
64 |
 |
|
128 |
 |
|
256 |
 |
|
512 |
 |
|
1024 |
 |
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Using the following default network numbers/subnet masks, specify a subnet mask to create the asked for number of subnetworks.
|
Network |
 Default Mask |
Create this number of Subnets |
# bits needed beyond default |
New Subnet mask number |
|
10.0.0.0 |
255.0.0.0 |
16 |
 |  |
|
121.0.0.0 |
255.0.0.0 |
255 |
 |  |
|
129.0.0.0 |
255.255.0.0 |
16 |
 |  |
|
172.16.0.0 |
255.255.0.0 |
32 |
 |  |
|
192.168.0.0 |
255.255.0.0 |
32 |
 |  |
|
200.2.3.0 |
255.255.255.0 |
32 |
 |  |
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You are given the network number 192.168.0.0/16. Subnet this to provide for 1024 subnets of equal size. Fill in the table below to show how well you understand this.
|
Subnet Numbers for first 5 subnets and last subnet |
First Host Address |
Last Host Address |
Broadcast Address |
|
|
1 |
 |  |  |  |
|
2 |
 |  |  |  |
|
3 |
 |  |  |  |
|
4 |
 |  |  |  |
|
5 |
 |  |  |  |
|
1024 |
 |  |  |
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