IT1080C Computer NetworkingIPv4 Addressing Lab 1 Classful Addressing

 

When the Internet Protocol was developed, the Internet contains a few large physical networks and many small networks so designers chose an addressing scheme to accommodate a combination of large and small networks. The original classful IP addressing divided IP address space into three primary classes and each class has a different size prefix and suffix.

The first four bits of an IP address determined class to which the address belonged and specifies how the remainder of the address was divided into prefix and suffix.

Class	First Four Bits	First Octet	# of Networks	# Hosts per Network	Prefix / Suffix
A	0XXX	1 to 126	126	16,777,214	N. H. H. H
B	10XX	128 to 191	16,384	65,534	N. N. H. H
C	110X	192 to 223	2,097,152	254	N. N. N. H

 

The table defines the first octet each class of addressing belongs, the number of networks in each of the three classes, the maximum number of hosts per network, and the division between the prefix (octets defining the network address) and the suffix (octets available for host addresses).

Find the network address, the broadcast address, and the range of host addresses for each given IPv4 address. Directions for completing lab:

1. Convert the dotted decimal address to binary 
2. Compute the network address by setting host bits to zero
3. Convert the binary network address to dotted decimal
4. Compute the broadcast address by setting host bits to one
5. Convert the binary broadcast address to dotted decimal
6. Determine the range of addresses available to hosts on the network (addresses between the network address and the broadcast address)

 

1. 160.53.5.0

Address in Binary:
__ __ __ __ __ __ __ __ . __ __ __ __ __ __ __ __ . __ __ __ __ __ __ __ __ . __ __ __ __ __ __ __ __

Network Address (set all host bits to zero): 
__ __ __ __ __ __ __ __ . __ __ __ __ __ __ __ __ . __ __ __ __ __ __ __ __ . __ __ __ __ __ __ __ __ 

 

Dotted decimal:  ________ . ________ . ________ . ________

Broadcast Address (set all host bits to one):
__ __ __ __ __ __ __ __. __ __ __ __ __ __ __ __ . __ __ __ __ __ __ __ __ . __ __ __ __ __ __ __ __ 

 

Dotted decimal:  ________ . ________ . ________ . ________

Range of host addresses (between the network address and the broadcast address):

 

Dotted decimal range:  ______. ______ . _____ . _____     ______. ______ . _____ . _____

 

1. 64.128.72.16
   
    

Address in Binary:
__ __ __ __ __ __ __ __ . __ __ __ __ __ __ __ __ . __ __ __ __ __ __ __ __ . __ __ __ __ __ __ __ __

 

Network Address (set all host bits to zero): 
__ __ __ __ __ __ __ __ . __ __ __ __ __ __ __ __ . __ __ __ __ __ __ __ __ . __ __ __ __ __ __ __ __ 

Dotted decimal:  ________ . ________ . ________ . ________

 

Broadcast Address (set all host bits to one):
__ __ __ __ __ __ __ __. __ __ __ __ __ __ __ __ . __ __ __ __ __ __ __ __ . __ __ __ __ __ __ __ __ 

Dotted decimal:  ______. ______ . _____ . _____

 

Range of host addresses (between the network address and the broadcast address):

 

Dotted decimal range:  ______. ______ . _____ . _____     ______. ______ . _____ . _____

 

1. 129.47.116.11

Address in Binary:
__ __ __ __ __ __ __ __ . __ __ __ __ __ __ __ __ . __ __ __ __ __ __ __ __ . __ __ __ __ __ __ __ __

Network Address (set all host bits to zero): 
__ __ __ __ __ __ __ __ . __ __ __ __ __ __ __ __ . __ __ __ __ __ __ __ __ . __ __ __ __ __ __ __ __ 

Dotted decimal:  ________ . ________ . ________ . ________

Broadcast Address (set all host bits to one):
__ __ __ __ __ __ __ __. __ __ __ __ __ __ __ __ . __ __ __ __ __ __ __ __ . __ __ __ __ __ __ __ __  

Dotted decimal:  ______. ______ . _____ . _____

Range of host address (between the network address and the broadcast address):

Dotted decimal range:  ______. ______ . _____ . _____     ______. ______ . _____ . _____

 

1. 192.168.32.252
   
    

Address in Binary:
__ __ __ __ __ __ __ __ . __ __ __ __ __ __ __ __ . __ __ __ __ __ __ __ __ . __ __ __ __ __ __ __ __

 

Network Address (set all host bits to zero): 
__ __ __ __ __ __ __ __ . __ __ __ __ __ __ __ __ . __ __ __ __ __ __ __ __ . __ __ __ __ __ __ __ __ 

Dotted decimal:  ________ . ________ . ________ . ________

 

Broadcast Address (set all host bits to one):
__ __ __ __ __ __ __ __. __ __ __ __ __ __ __ __ . __ __ __ __ __ __ __ __ . __ __ __ __ __ __ __ __ 

Dotted decimal:  ________ . ________ . ________ . ________

Range of host address (between the network address and the broadcast address):

 

Dotted decimal range:  ______. ______ . _____ . _____     ______. ______ . _____ . _____

 

1. 217.96.128.116
   
    

Address in Binary:
__ __ __ __ __ __ __ __ . __ __ __ __ __ __ __ __ . __ __ __ __ __ __ __ __ . __ __ __ __ __ __ __ __

 

Network Address (set all host bits to zero): 
__ __ __ __ __ __ __ __ . __ __ __ __ __ __ __ __ . __ __ __ __ __ __ __ __ . __ __ __ __ __ __ __ __ 

Dotted decimal:  ________ . ________ . ________ . ________

 

Broadcast Address (set all host bits to one):
__ __ __ __ __ __ __ __. __ __ __ __ __ __ __ __ . __ __ __ __ __ __ __ __ . __ __ __ __ __ __ __ __ 

Dotted decimal:  ______. ______ . _____ . _____

Range of host address (between the network address and the broadcast address):

Dotted decimal range:  ______. ______ . _____ . _____     ______. ______ . _____ . _____