Semester 2 - IP Addressing and Subnet Review

7/30/2019 Semester 2 - IP Addressing and Subnet Review

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OUR SUBNET PLANNING

MISSION:We have been assigned an address of

201.222.5.0. Assume 20 subnets are

needed, with 5 hosts per subnet. Ourmission is to identify each subnet address

and the addresses of all hosts under each

subnet.


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Step 1. Convert the decimal dottednotation address 201.222.5.0 to binary:

11001001.11011110.00000101.00000000


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Step 2. Determine the Class of the IP

Address 201.222.5.0:

CLASS C


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Step 3. Based on the Class, determine what

part of the IP address is the network portionand what part of the address is the host

portion:

11001001.11011110.00000101.00000000

Network .Network .Network .Host


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Step 4. Determine how many bits you

need to borrow from the last octet (host

portion) of the IP Address to give you the

needed 20 subnets:

2 to the power of 2 = 4 subnets (less 2)



2 to the power of 5 = 32 subnets (less 2)2 to the power of 6 - 64 subnets (less 2)


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Step 5. Since you borrowed five bits from

the host for subnets, determine how manyhosts can you have on each of those

subnets?

2 to the power of 3 = 8 hosts (less 2) giving

you 6 hosts per subnet.


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Step 6. Determine the Binary Subnetworks

Field Numbers (32 possible combinations):

Subnet # Binary Subnetwork

1 00000

2 00001

3 00010

4 00011

5 00100

6 00101

7 00110

8 00111

9 01000

10 0100111 01010

12 01011

13 01100

.. ..

32 11111


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Step 7. Determine the Range of Binary Host

Field Numbers for Each Subnetwork:

Subnet # Binary Subnetwork Range of Host #s

1 00000

2 00001 000 - 111

3 00010 000 - 111

4 00011 000 - 111

5 00100 000 - 111

6 00101 000 - 111

7 00110 000 - 111

8 00111 000 - 111

9 01000 000 - 111

10 01001 000 - 11111 01010 000 - 111

12 01011 000 - 111

13 01100 000 - 111

.. .. -----------

32 11111


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Step 8. Determine Decimal Host Numbers

for Each Subnetwork:

Subnet # Binary Subnetwork Range of Host #s Decimal Host Numbers

1 00000

2 00001 000 - 111 .8 - .15

3 00010 000 - 111 .16 - .23

4 00011 000 - 111 .24 - .31

5 00100 000 - 111 .32 - .39

6 00101 000 - 111 .40 - .47

7 00110 000 - 111 .48 - .55

8 00111 000 - 111 .56 - .63

9 01000 000 - 111 .64 - .71

10 01001 000 - 111 .72 - .7911 01010 000 - 111 .80 - .87

12 01011 000 - 111 .88 - .95

13 01100 000 - 111 .96 - 103

.. .. ----------- ----------

32 11111


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Step 9. Determine Our Subnet Addresses:

# Binary Subnetwork Range of Host #s Decimal Host #s Subnet Address

1 00000

2 00001 000 - 111 .8 - .15 201.222.5.8

3 00010 000 - 111 .16 - .23 201.222.5.16

4 00011 000 - 111 .24 - .31 201.222.5.24

5 00100 000 - 111 .32 - .39 201.222.5.32

6 00101 000 - 111 .40 - .47 201.222.5.40

7 00110 000 - 111 .48 - .55 201.222.5.48

8 00111 000 - 111 .56 - .63 201.222.5.56

9 01000 000 - 111 .64 - .71 201.222.5.64

10 01001 000 - 111 .72 - .79 201.222.5.7211 01010 000 - 111 .80 - .87 201.222.5.80

12 01011 000 - 111 .88 - .95 201.222.5.88

13 01100 000 - 111 .96 - 103 201.222.5.96

.. .. ----------- ---------- ---------------

32 11111


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Step 10. Determine Host Addresses of the

Six Nodes of Each Subnet:

# Subnetwork Range of Host #s Decimal Host #s Subnet Address Host Address Range

1 00000

2 00001 000 - 111 .8 - .15 201.222.5.8 201.222.5.9 thru 201.222.5.14

3 00010 000 - 111 .16 - .23 201.222.5.16 201.222.5.17 thru 201.222.5.22

4 00011 000 - 111 .24 - .31 201.222.5.24 201.222.5.25 thru 201.222.5.30

5 00100 000 - 111 .32 - .39 201.222.5.32 201,222,5,33 thru 201.222.5.38

6 00101 000 - 111 .40 - .47 201.222.5.40 201.222.5.41 thru 201.222.5.46

7 00110 000 - 111 .48 - .55 201.222.5.48 201.222.5.49 thru 201.222.5.54

8 00111 000 - 111 .56 - .63 201.222.5.56 201.222.5.57 thru 201.222.5.62

9 01000 000 - 111 .64 - .71 201.222.5.64 201.222.5.65 thru 201.222.5.70

10 01001 000 - 111 .72 - .79 201.222.5.72 201.222.5.73 thru 201.222.5.7811 01010 000 - 111 .80 - .87 201.222.5.80 201.222.5.81 thru 201.222.5.86

12 01011 000 - 111 .88 - .95 201.222.5.88 201.222.5.89 thru 201.222.5.94

13 01100 000 - 111 .96 - 103 201.222.5.96 201.222.5.97 thru 201.222.5.--

.. .. ----------- ---------- --------------- -------------------------------------

32 11111


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Step 11. Determine Broadcast Addresses of

Each Subnet:

Range of Decimal Subnet Host Broadcast

# Subnetwork Host #s Host #s Address Address Range Address

1 00000

2 00001 000 - 111 .8 - .15 201.222.5.8 201.222.5.9 thru 201.222.5.14 201.222.5.15

3 00010 000 - 111 .16 - .23 201.222.5.16 201.222.5.17 thru 201.222.5.22 201.222.5.23

4 00011 000 - 111 .24 - .31 201.222.5.24 201.222.5.25 thru 201.222.5.30 201.222.5.31

5 00100 000 - 111 .32 - .39 201.222.5.32 201,222,5,33 thru 201.222.5.38 201.222.5,39

6 00101 000 - 111 .40 - .47 201.222.5.40 201.222.5.41 thru 201.222.5.46 201.222.5.47

7 00110 000 - 111 .48 - .55 201.222.5.48 201.222.5.49 thru 201.222.5.54 201.222.5.55

8 00111 000 - 111 .56 - .63 201.222.5.56 201.222.5.57 thru 201.222.5.62 201.222.5.63

9 01000 000 - 111 .64 - .71 201.222.5.64 201.222.5.65 thru 201.222.5.70 201.222.5.7110 01001 000 - 111 .72 - .79 201.222.5.72 201.222.5.73 thru 201.222.5.78 201.222.5.79

11 01010 000 - 111 .80 - .87 201.222.5.80 201.222.5.81 thru 201.222.5.86 201.222.5.87

12 01011 000 - 111 .88 - .95 201.222.5.88 201.222.5.89 thru 201.222.5.94 201.222.5.95

13 01100 000 - 111 .96 - 103 201.222.5.96 201.222.5.97 thru 201.222.5.-- ----------------

.. .. ----------- ---------- --------------- ------------------------------------- ----------------

32 11111


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Step 12. Based on the Class, determine

the subnet mask for network 201.222.5.0(remember that 5 bits were borrowed):

11111111.11111111.11111111.11111 000

Network Network Network Subnet Host


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A data frame with a destination IP Addressof

201.222.5.21 would be used by the router, along

with thesubmask of 255.255.255.248, todetermine the correct subnet to switch the data

to in the switching process:

ANDING Process Performed by Router

IP Address: 11001001.11011110.00000101.00010101

Subnet Mask: 11111111.11111111.11111111.11111000

Subnet: 11001001.11011110.00000101.00010000

(Subnet in Decimal Dotted Notation: 201.222.5.16)


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YOU DID IT!

201.222.5.12

201.222.5.13

201.222.5.14

201.222.5.10

NETWORK 201.222.5.0

201.222.5.11

201.222.5.19

201.222.5.20

201.222.5.21

201.222.5.22

201.222.5.18

RouterSubnetwork

201.222.5.8

Subnetwork

201.222.5.16E0

201.222.5.9

E1

201.222.5.17

Routing Table

201.222.5.8 E0

201.222.5.16 E1

201.222.5.24 E2

201.222.5.32 E3

Semester 2 - IP Addressing and Subnet Review

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Transcript of Semester 2 - IP Addressing and Subnet Review