# CS-414: Data Centre Administration

Networking and Communications

Oct 24, 2013 (4 years and 6 months ago)

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CS
-
4
14
:

(Course Materials can be found in:
www.mmenacer.info
)

Lab Sheet
5
:
Subnetwork, Classes, IP address
ing

For this week, the lab will
cover
how s
ubnetwork
s

or subnets

are designed

using

Classes, IP
and
.

Before subnetting

1.

In any network (or subnet) we can not use all the IP addresses for host addresses.

2.

We lose two addresses for every network or subnet.

3.

One address is reserved
to that of the network

(
)
.

4.

One address is reserved to address all hosts in that network or subnet

(
Last IP
)
.

Example
:

Class

Netw

64.210.30.189

172.110.220.34

192.168.100.10

A

B

C

64.0.0.0

172.110.0.0

192.168.100.0

64.255.255.255

172.110.255.255

192.168.100.255

Exercise 1:

Class

Default
Network

1
64.
8
0.
130.
89

72.1
0.20.
7
4

222.18.160.105

Creating Subnetworks

To create a subnet address, a network administrator borrows bits from the original host portion and
designates them as the subnet field.

Network design us
ing subnets

Exercise
2
:

Design a network diagram, using Packet tracer, with 4 subnets. Fill in the
Network design
table below
before configuring the network devices:

1 routers, 2 switches, 1 hubs,

1 servers and 1 printers in each subnet, and 1
6

PCs.

Use the main network address:
192.168.
1
.0
.

Network Design
Table

Network
:

192.168.1.0

Class
:

:

Network
IP
:

:

Subnet 1 IP address:

Subnet 1 Range of IP addresses:

Subnet 2 IP address:

Subnet 2 Range of IP addresses:

Subnet 3 IP address:

Subnet 3 Range of IP addresses:

Subnet 4 IP addre
ss:

Subnet 4 Range of IP addresses:

Finally, use the simulation and realtime modes to test your network design.

Practice Exercise:

Design, draw

and configure

a network
with
8

subnets

(fill in the Network design table)

using
:

2

routers,
3

switches,
3

hubs, 2 servers and 2 printers in each subnet, and 12 PCs.

Use the main network address
:

64
.
0
.0.0
.

Use the simulation
mode

by sending some messages
at the same time
between PCs
, and notice
how messages collide if the networ
k is not segmented using switches and routers
.

Determine the number of collision and broadcast domains.

Write down all the details of this network design (network address, subnet mask, subnet
subnet).

Save your design as “lab
5
diagram
1
.pkt
”, in your flash memory for future use.

Students should review these tutorials

and practice at home to be able to get a good
understanding and use of Packet Tracer software.
T
his will be a
big

help in understanding this
course and the notions of Networking as a whole.