ITE4904 Preparation of CCNA
Certification Examination
Lab 0 – Pre-module Revision Lab
The above diagram shows a typical network of a SME. In the company, there are three departments namely Accounting, Marketing and Engineering. As a network administrator of the company, you are asked to setup the company network according to the following guidelines:
1.
Each
department should have its own sub-network to connect.
2.
Internet
server (www.its2321.com) and Intranet server should be separated into different
subnets.
3.
The
network address of the company is 192.168.1.0/24.
4.
The IP
range assigned by the ISP to the company is 210.3.5.16/28 and the ISP Gateway
IP Address is 210.3.5.17.
5.
The
number of minimum usable IP addresses in each department are as follows:
l
Accounting
Department – 60
l
Marketing
Department – 60
l
Engineering
Department – 30
l
Intranet
Server – 10
l
Internet
Server – 10
l
Serial
Link Cables – 2
6.
PC1
connects to Port 1 of the departmental switch, PC2 connects to Port 2 of the
departmental switch and so on……
7.
Fast
Ethernet interfaces of routers connect to Port 24 of the departmental switches.
Step
1: Subnet Calculation
According to the above information
provided, divide the network into subnets using VLSM.
Name of Subnet
|
Subnet
No
|
Minimum
No of Hosts
|
Network
Address
|
Broadcast
Address
|
Subnet
Mask
|
Accounting
|
1st available subnet
|
60
|
192.168.1.0
|
192.168.1.63
|
255.255.255.192
|
Marketing
|
2nd available subnet
|
60
|
192.168.1.64
|
192.168.1.127
|
255.255.255.192
|
Engineering
|
3rd available subnet
|
30
|
192.168.1.128
|
192.168.1.159
|
255.255.255.224
|
Intranet
|
4th available subnet
|
10
|
192.168.1.160
|
192.168.1.175
|
255.255.255.240
|
Internet
(www.its2321.com)
|
5th available subnet
|
10
|
192.168.1.176
|
192.168.1.191
|
255.255.255.240
|
Serial Link
ISPGatewayóOffice
|
6th available subnet
|
2
|
192.168.1.192
|
192.168.1.195
|
255.255.255.252
|
Serial Link
OfficeóTechnicial
|
7th available subnet
|
2
|
192.168.1.196
|
192.168.1.199
|
255.255.255.252
|
Serial Link
ISPGatewayóTechnicial
|
8th available subnet
|
2
|
192.168.1.200
|
192.168.1.203
|
255.255.255.252
|
Step
2: Assigning IP to the Router Interface
l
The
first IP of the subnet should be assigned to all DCE ports.
l
The
second IP of the subnet should be assigned to all DTE ports.
l
The
first IP of the subnet should be assigned to all FastEthernet ports.
Router
|
Fa0/0
|
Fa0/1
|
S0/0/0
|
S0/0/1
|
ISPGateway
|
210.3.5.18/28
|
(Connected to
www.its2321.com Server)
192.168.1.177
|
(DCE, connected
to Office router)
192.168.1.193
|
(DCE, connected
to Technical router)
192.168.1.201
|
Office
|
(Connected to
Accounting Switch)
192.168.1.1
|
(Connected to
Marketing Switch)
192.168.1.65
|
(DTE, connected
to ISPGateway router)
192.168.1.194
|
(DCE, connected
to Technical router)
192.168.1.197
|
Technical
|
(Connected to
Engineering Switch)
192.168.1.129
|
(Connected to
Intranet Server)
192.168.1.161
|
(DTE, connected
to ISPGateway router)
192.168.1.202
|
(DTE, connected
to Office router)
192.168.1.198
|
Step
3: Assigning IP to the PCs and Servers
PC/Server
|
IP
Address
|
Subnet
Mask
|
Gateway
|
DNS
Server
|
Accounting PC1
|
By DHCP
|
255.255.255.192
|
192.168.1.1
|
192.168.1.178
|
Accounting PC2
|
By DHCP
|
255.255.255.192
|
192.168.1.1
|
192.168.1.178
|
Accounting PC3
|
By DHCP
|
255.255.255.192
|
192.168.1.1
|
192.168.1.178
|
Accounting PC4
|
By DHCP
|
255.255.255.192
|
192.168.1.1
|
192.168.1.178
|
Marketing PC1
|
By DHCP
|
255.255.255.192
|
192.168.1.65
|
192.168.1.178
|
Marketing PC2
|
By DHCP
|
255.255.255.192
|
192.168.1.65
|
192.168.1.178
|
Marketing PC3
|
By DHCP
|
255.255.255.192
|
192.168.1.65
|
192.168.1.178
|
Marketing PC4
|
By DHCP
|
255.255.255.192
|
192.168.1.65
|
192.168.1.178
|
Engineering PC1
|
By DHCP
|
255.255.255.224
|
192.168.1.129
|
192.168.1.178
|
Engineering PC2
|
By DHCP
|
255.255.255.224
|
192.168.1.129
|
192.168.1.178
|
Engineering PC3
|
By DHCP
|
255.255.255.224
|
192.168.1.129
|
192.168.1.178
|
Engineering PC4
|
By DHCP
|
255.255.255.224
|
192.168.1.129
|
192.168.1.178
|
Intranet Server
|
2nd IP of the subnet
192.168.1.162
|
255.255.255.240
|
192.168.1.161
|
192.168.1.178
|
www.its2321.com
|
2nd IP of the subnet
192.168.1.178
|
255.255.255.240
|
192.168.1.177
|
123.4.5.6
|
Step
4 Connecting Network Devices
By using proper type of the network cables,
connect all devices in the company according to the network diagram.
Step
5 Configuring Hostname, Password and Login Banner of the Routers
Configure the hostname, password and login
banner of the routers according to the following parameters:
Hostname: Refer
to the network diagram
Enable Secret Password: cisco
Login Banner: Authorized
access only!
Encrypt all passwords by default.
Step
6 Configuring Network Interfaces
According to the tables, configure the IP
address of the interfaces of all routers and servers, the clockrate of all DCE
ports should be 56000.
Step
7 Configuring Default Route and Routing Protocol
Configure default route to the Internet and RIP as the
internal routing protocol.
Step
8 Configuring DHCP Services
The following IP ranges should be excluded
in the DHCP services:
192.168.1.1
– 192.168.1.10
192.168.1.65
– 192.168.1.70
192.168.1.129
– 192.168.1.130
Fill in the following table and setup DHCP
services in Office and Technical router accordingly.
Name
of Pool
|
accounting
|
marketing
|
engineering
|
Excluded
IP Range
|
192.168.1.1 – 10
|
192.168.1.65 – 70
|
192.168.1.129 – 130
|
Network
Address
|
192.168.1.0
|
192.168.1.64
|
192.168.1.128
|
Subnet
Mask
|
255.255.255.192
|
255.255.255.192
|
255.255.255.224
|
Default
Router
|
192.168.1.1
|
192.168.1.65
|
192.168.1.129
|
DNS
Server
|
192.168.1.178
|
192.168.1.178
|
192.168.1.178
|
Step
9 Configuring NAT Service
Configure a Static NAT entry to the Internet Server
(www.its2321.com), the public IP for the Internet server should be 210.3.5.19.
Configure a PAT/NAT overload services to all internal
subnets except the Internet Server subnet.
Standard access-list with list number 1 should be used.
Step
10 Testing the connectivity
The DNS Settings for the servers are as
follows:
Screen Name
|
DNS Record
|
IP Address
|
Internet
|
www.google.com
www.google.com.hk
|
123.4.5.6
|
Internet Server
|
www.its2321.com
|
Assigned by you
|
Intranet Server
|
intranet.its2321.com
|
Assigned by you
|
Test the connectivity by trying to access
the servers.
You should be able to ping all the devices
and access to your servers and Internet using the web browser.
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