Question

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

The network address is calculated by setting all host bits to zero. The broadcast address is calculated by setting all host bits to one. The available addresses to assign to hosts on the network are the addresses between the network address and the broadcast address.

The CIDR (Classless Inter-Domain Routing) number indicates the number of network bits. Since IPv4 is a 32-bit number displayed in dotted decimal format, a CIDR of 16 dictates that the first 16 bits are used to define the network and 16 bits remain define hosts on a network.

​

1. 129.53.5.0/16

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 address (between the network address and the host address):

__ __ __ __ __ __ __ __ . __ __ __ __ __ __ __ __ . __ __ __ __ __ __ __ __ . __ __ __ __ __ __ __ __

​

__ __ __ __ __ __ __ __ . __ __ __ __ __ __ __ __ . __ __ __ __ __ __ __ __ . __ __ __ __ __ __ __ __​

Dotted decimal range: ______. ______ . _____ . _____ à ______. ______ . _____ . _____

2. 64.128.72.16/8

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 address (between the network address and the host address):

__ __ __ __ __ __ __ __ . __ __ __ __ __ __ __ __ . __ __ __ __ __ __ __ __ . __ __ __ __ __ __ __ __

​

__ __ __ __ __ __ __ __ . __ __ __ __ __ __ __ __ . __ __ __ __ __ __ __ __ . __ __ __ __ __ __ __ __​

Dotted decimal range: ______. ______ . _____ . _____ à ______. ______ . _____ . _____

3. 29.47.116.11/16

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 address (between the network address and the host address):

__ __ __ __ __ __ __ __ . __ __ __ __ __ __ __ __ . __ __ __ __ __ __ __ __ . __ __ __ __ __ __ __ __

​

__ __ __ __ __ __ __ __ . __ __ __ __ __ __ __ __ . __ __ __ __ __ __ __ __ . __ __ __ __ __ __ __ __​

Dotted decimal range: ______. ______ . _____ . _____ à ______. ______ . _____ . _____

4. 192.168.32.252/24

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 address (between the network address and the host address):

__ __ __ __ __ __ __ __ . __ __ __ __ __ __ __ __ . __ __ __ __ __ __ __ __ . __ __ __ __ __ __ __ __

​

__ __ __ __ __ __ __ __ . __ __ __ __ __ __ __ __ . __ __ __ __ __ __ __ __ . __ __ __ __ __ __ __ __​

Dotted decimal range: ______. ______ . _____ . _____ à ______. ______ . _____ . _____

5. 237.96.128.116/24

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 address (between the network address and the host address):

__ __ __ __ __ __ __ __ . __ __ __ __ __ __ __ __ . __ __ __ __ __ __ __ __ . __ __ __ __ __ __ __ __

​

__ __ __ __ __ __ __ __ . __ __ __ __ __ __ __ __ . __ __ __ __ __ __ __ __ . __ __ __ __ __ __ __ __​

Dotted decimal range: ______. ______ . _____ . _____ à ______. ______ . _____ . _____

​File

Answer 1

The IP address is a 32 bit entity of the format A.B.C.D. Each of these fields(A,B,C,D) are of 8 bits. The network mask in the format /X is a network mask with first X bits set to 1 and the remaining 32 -X bits is 0. To find the network address, the IP address needs to be applied with the network mask.

To display in binary convert each field into an 8 bit binary value.

1. 129.53.5.0/16

Network Mask: 11111111 . 11111111 . 00000000. 00000000

Address in Binary:

10000001 . 00110101 . 00000101. 00000000

Network Address (set all host bits to zero):

10000001 . 00110101 . 00000000. 00000000

Dotted decimal: 129.53.0.0

Broadcast Address (set all host bits to one):

10000001 . 00110101 . 11111111. 11111111

Dotted decimal: 129.53.255.255

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

10000001 . 00110101 . 00000000. 00000001

​10000001 . 00110101 . 11111111. 11111110

Dotted decimal range: 129.53.0.1 à 129.53.255.254

2. 64.128.72.16/8

Network mask: 11111111 . 00000000 . 00000000 . 00000000

Address in Binary:

01000000.10000000. 01001000. 00010000

Network Address (set all host bits to zero):

01000000.00000000 . 00000000 . 00000000

Dotted decimal: 64.0.0.0

Broadcast Address (set all host bits to one):

01000000.11111111 . 11111111 . 11111111

Dotted decimal: 64.255.255.255

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

01000000. 00000000 . 00000000 . 00000001

01000000 . 11111111 . 11111111 . 11111110

Dotted decimal range: 64.0.0.1 à 64.255.255.254

3. 29.47.116.11/16

Network Mask: 11111111 . 11111111 . 00000000. 00000000

Address in Binary:

00011101 . 00101111 . 01110100 . 00001011

Network Address (set all host bits to zero):

00011101 . 00101111 . 00000000 . 00000000​

Dotted decimal: 29.47.0.0

Broadcast Address (set all host bits to one):

00011101 . 00101111 . 11111111.11111111

Dotted decimal: 29.47.255.255

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

00011101 . 00101111 . 00000000 . 000000001

00011101 . 00101111 . 11111111 . 11111110

Dotted decimal range: 29.47.0.1 à 29.47.255.254

4. 192.168.32.252/24

Network Address: 11111111 . 11111111 . 11111111 . 00000000

Address in Binary:

11000000 . 10101000 . 00100000 . 11111100

Network Address (set all host bits to zero):

11000000 . 10101000 . 00100000 . 00000000

Dotted decimal: 192.168.32.0

Broadcast Address (set all host bits to one):

11000000 . 10101000 . 00100000 . 11111111

Dotted decimal: 192.168.32.255

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

11000000 . 10101000 . 00100000 . 00000001

11000000 . 10101000 . 00100000 . 11111111

Dotted decimal range: 192.168.32.1 à 192.168.32.254

5. 237.96.128.116/24

Network Address: 11111111 . 11111111 . 11111111 . 00000000

Address in Binary:

11101101 . 01100000 . 10000000 . 01110100

Network Address (set all host bits to zero):

11101101 . 01100000 . 10000000 . 00000000

Dotted decimal: 237.96.128.0

Broadcast Address (set all host bits to one):

11101101 . 01100000 . 10000000 . 11111111

Dotted decimal: 237.96.128.255

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

11101101 . 01100000 . 10000000 . 00000001

11101101 . 01100000 . 10000000 . 11111110

Dotted decimal range: 237.96.128.1 à 237.96.128.254