design and management of computer infrastructure
TRANSCRIPT
Design and Management of Computer Infrastructure (DMCI)
BM 3rd Year 1St Semester
Assignment 1
BM14413070
D.K.S.M Munasinghe
Table of contents
Introduction.................................................................................................................................................4
Methodology...............................................................................................................................................5
Objectives:...............................................................................................................................................5
Part 1: Design IP addressing plan for the scenario...............................................................................6
Router Configuration.............................................................................................................................10
R1 Router..........................................................................................................................................10
R2 Router..........................................................................................................................................13
Routing Configuration...........................................................................................................................16
R1 Router..........................................................................................................................................16
R2 Router..........................................................................................................................................17
Assign IP Addresses on pc’s..................................................................................................................18
PC0 IP Configuration........................................................................................................................18
PC1 IP Configuration........................................................................................................................19
PC2 IP configuration.........................................................................................................................20
PC3 IP configuration.........................................................................................................................21
Verify Connectivity...................................................................................................................................22
Discussion.................................................................................................................................................24
Conclusion.................................................................................................................................................25
References.................................................................................................................................................26
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Introduction
About the Module
As a learning outcome in Design and management of computer infrastructure students have to learn how to use Cisco packet tracer in computer in network management situations. We can clearly realize that how the devices are working and how to use those devices in real networks
About Cisco Packet Tracpacket Tracer is a cross-platform visual simulation program designed by Cisco Systems that allows users to create network topologies and imitate modern computer networks. The software allows users to simulate the configuration of Cisco routers and switches using a simulated command line interface. Packet Tracer makes use of a drag and drop user interface, allowing users to add and remove simulated network devices as they see fit
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Methodology
Objectives:- Part 1: Design an IP addressing scheme
Part 2: Assign IP Address to network devices and verify Connectivity
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In order to design this scenario it’s will require
Two 1941 Routers
Four 2950-24 Switches
Four Generic Pcs
One Serial DCE cable
Eight copper straight-Through cable
Part 1: Design IP addressing plan for the scenario
192.168.100.0/24
Network Prefix Host Number
Network Prefix Subnet Number Host Number
Extended Network Prefix
192 168 100 0
Network Prefix Host Number
5
It will be need 5 subnets to address this scenario
192 168 100 0
1 1 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 0 0 0 0 N N N H
21 22 23
2 4 8
3 bits will required
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Subnet 0
Subnet 1Subnet 2
Subnet 3
Subnet 4
It will create 8 subnets
192.168.100.0/24
Using Truth table
A
1282
B
642
C
322
Host In Decimal
0 0 0 0 00000000
0 0 1 32 00100000
0 1 0 64 01000000
0 1 1 96 01010000
1 0 0 128 10000000
1 0 1 160 11000000
1 1 0 192 11100000
1 1 1 224 11110000
Subnet Mask 255 255 255 224
In Decimal 11111111 11111111 11111111 11100000
Prefix Length /27
Subnet Table
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Addressing Table
Device Interface IP Address Subnet Mask Default gateway
R1G0/0 192.168.100.1 255.255.255.224G0/1 192.168.100.33 255.255.255.224
S0/1/0 192.168.100.65 255.255.255.224
R2G0/0 192.168.100.97 255.255.255.224G0/1 192.168.100.129 255.255.255.224
S0/1/0 192.168.100.94 255.255.255.224S1 VLAN1 192.168.100.2 255.255.255.224S2 VLAN1 192.168.100.64 255.255.255.224S3 VLAN1 192.168.100.98 255.255.255.224S4 VLAN1 192.168.100.130 255.255.255.224
PC1 NIC 192.168.100.30 255.255.255.224 192.168.100.1PC2 NIC 192.168.100.62 255.255.255.224 192.168.100.33PC3 NIC 192.168.100.126 255.255.255.224 192.168.100.97PC4 NIC 192.168.100.158 255.255.255.224 192.168.100.129
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Subnet no Network address
1st useful ip address
Last useful ip address
Broadcast address
0 192.168.100.0 192.168.100.1 192.168.100.30 192.168.100.311 192.168.100.32 192.168.100.33 192.168.100.62 192.168.100.632 192.168.100.64 192.168.100.65 192.168.100.94 192.168.100.953 192.168.100.96 192.168.100.97 192.168.100.126 192.168.100.1274 192.168.100.128 192.168.100.12
9192.168.100.158 192.168.100.159
Router Configuration
R1 Router
Go to Privileged mode
Router>enable
Go to Configuration mode
Router>Config t
To Change Host name of the router
Router#(config)#Hostname R1
To Select interface to configure
R1(config)#int gig0/0
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Assign ip address to the interface
R1(config-if)#ip 192.168.100.1 255.255.255.224
Exit from Current interface
R!(config-if)#Exit
To Select interface to configure
R1(config)#int gig0/1
Assign ip address to the interface
R1(config-if)#ip 192.168.100.33 255.255.255.224
Exit from Current interface
R!(config-if)#Exit
To Select interface to configure
R1(config)#int se0/1/0
Assign ip address to the interface
R1(config-if)#ip 192.168.100.65 255.255.255.224
No shutdown command
R1(config-if)#no shut
Set clock rate to the interface
R1(config-if)#clock rate 64000
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Exit from current interface mode
R1(config-if)#Exit
Exit from Configuration mode
R1(config)#Exit
View Show run Command
R1#Show run
(Hit Enter to View More)
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R2 Router
Go to Privileged mode
Router>enable
Go to Configuration mode
Router>Config t
To Change Host name of the router
Router#(config)#Hostname R2
To Select interface to configure
R1(config)#int gig0/0
Assign ip address to the interface
R2(config-if)#ip 192.168.100.97 255.255.255.224
Exit from Current interface
R2(config-if)#Exit
To Select interface to configure
R2(config)#int gig0/1
Assign ip address to the interface
R2(config-if)#ip 192.168.100.129 255.255.255.224
Exit from Current interface
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R2(config-if)#Exit
To Select interface to configure
R2(config)#int se0/1/0
Assign ip address to the interface
R2(config-if)#ip 192.168.100.94 255.255.255.224
No shutdown command
R2(config-if)#no shut
Set clock rate to the interface
R2(config-if)#clock rate 64000
Exit from current interface mode
R2(config-if)#Exit
Exit from Configuration mode
R2(config)#Exit
View Show run Command
R2#Show run
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(Hit Enter to View More)
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Routing Configuration
R1 Router Go to Privileged mode
R1>enable
Go to Configuration mode
R1#Config t
Assign gateways and network address of other routers
R1#ip Route 192.168.100.96 255.255.255.224 192.168.100.94
R1#ip Route 192.168.100.128 255.255.255.224 192.168.100.94
Exit to user mode
R1#exit
View show run command
R1>show run
(Hit enter view More)
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R2 Router
Go to Privileged mode
R2>enable
Go to Configuration mode
R2#Config t
Assign gateways and network address of other routers
R2#ip Route 192.168.100.0 255.255.255.224 192.168.100.65
R2#ip Route 192.168.100.32 255.255.255.224 192.168.100.65
Exit to user mode
R2#exit
View show run command
R2>show run
(Hit Enter to View More)
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Assign IP Addresses on pc’s
Step 1: Double Click on PC icon
Step 2: Click on Desktops tab
Step 3: Click on IP configuration
PC0 IP Configuration
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PC1 IP Configuration
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PC2 IP configuration
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PC3 IP configuration
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Verify Connectivity
1. PC0 to other PCs and Routers
2. PC1 to other PCs and Routers
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3. PC2 to other PCs and Routers
4. PC3 to other PCs and Routers
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Discussion
Select right router for scenario
In this scenario we have to use Gigabyte fast Ethernet so we should select 1941 router instead of generic router
We should add ports for 1941 router
Conclusion
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1941 Router Generic router
1. Switch off the Router
2. Drag and drop this ports to that black space
3. Switch on the Router
This Assignment provide basic understand about subnetting, features of cisco packet tracer and routing
When subnetting we should consider class of given IP address to create subnets
Class IP Range Prefix Length Default Subnet Mask
Hosts
A 1.0.0.0-126.255.255.255. /8 255.0.0.0 16777214B 128.0.0.0-191.255.255.255 /16 255.255.0.0 16384C 191.0.0.0-223.255.255 /24 255.255.255.0 254
In this scenario given IP address is 192.168.100.0/24 which is class c IP address
192.168.100.0
N N N H
Class C IP address have only one Host Portion.in this Scenario We should have 5 subnets, so we have to take three bits (23=8) from the host Portion. According to logic gates one subnet have 32 Hosts
Subnet Useful IP Range
0 192.168.100.1-192.168.100.301 192.168.100.33-192.168.100.622 192.168.100.65-192.168.100.943 192.168.100.97-192.168.100.1264 192.168.100.129-192.168.100.158
New prefix length and Subnet mask will change according to bits that are taken from host portion
Old Prefix length Bits taken New Prefix Length/24 3 /27
Subnet Mask
11111111.11111111.11111111.11100000
255.255.255.224
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References
https://en.wikipedia.org/wiki/Packet_Tracer
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