Packet Tracer

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HET104/HET706

An Introduction to: 1. An IP Network – ABC Electronics Ltd 2. Building a Network (using Packet Tracer)

1

ABC Electronics Ltd IP Network Topology Diagram
Network Address Class A:13.0.0.0 S 0/0 Melb Router
.1

DTE Serial Cable S 0/0

.2

Syd Router

DCE
.1 Fa 0/0

.1

Fa 0/0 UTP Cat5 Straight Thru Cable

Network Address Class B:145.50.0.0

Network Address Class C:193.105.10.0
Fa 0/1 Fa 0/1

Melb Switch
Fa 0/2

Syd Switch
Fa 0/2

.2

.2

Melb PC

Syd PC

2

An IP Network - Overview
• An IPv4 Network – Network Address • Layer 3 (OSI Model) address • Number of bits • Classes A, B, C • Structure – network, host • Network mask – Types of Address • Network • Host • Broadcast – What is a gateway address? 3

An IP Network - Overview
• The devices: Router, Switch, PC • Role of the Router • Role of the Switch • ARP (Address Resolution Protocol) – MAC address – Layer 2 (OSI Model)address – the mapping of a Layer 3 to Layer 2 address • The cables: UTP, Serial • The Interface: FastEthernet, Serial – What is an interface? – What is its purpose? – How is it identified? – DTE or DCE? 4

An IP Network - Overview
• How do IP packets travel between networks? – The Routing Table – Building a Routing table using Static Routes

5

Building a Network - Packet Tracer
• A simulation product for designing, and testing a network before implementation on the actual hardware devices. • For personal use, can be downloaded from Blackboard or the Cisco Network Academy • In Lab – Logon on to PC using your student account

– Run Packet Tracer

• Build the ABC Electronics Network using Packet Tracer

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Building a Network - Overview
• Router IOS Modes – User Executive Mode – router> – Privileged Executive Mode – router# – Global Configuration Mode – router(config)# – Interface Configuration Mode – router(config-if)# • System Testing and Trouble Shooting – Step by Step Testing – Link (Point-to-Point) Testing – Path (End-to-End) Testing – Use of show commands

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Building a Network - Show Commands – Privileged Executive Mode • show ip route • show running-configure • show version • • • • show ip interface brief show controllers serial show interface serial show interface fastethernet

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Building a Network - Melb Router Configuration
! Set hostname of the router - Global Configuration Mode hostname Melb ! The FastEthernet interface configuration - Interface Configuration Mode interface fa 0/0 ip address 145.50.0.1 255.255.0.0 description Link to Melb Switch no shutdown ! The Serial interface configuration - Interface Configuration Mode interface serial 0/0 ip address 13.0.0.1 255.0.0.0 ! This is DCE end of the link, set the clock rate clock rate 64000 description Link to Syd Router no shutdown 9

Building a Network - Melb PC Configuration
• Need to set the PC’s IP address to 145.50.0.2 • Need to set PC’s subnet mask to 255.255.0.0 • Need to set PC’s gateway to 145.0.0.1

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Building a Network – Syd Router Configuration
! Set hostname of the router hostname Syd ! The FastEthernet interface configuration interface fa 0/0 ip address 193.105.10.1 255.255.255.0 description Link to Syd Switch no shutdown ! The Serial interface configuration interface serial 0/0 ip address 13.0.0.2 255.0.0.0 description Link to Melb Router no shutdown

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Building a Network - Syd PC Configuration
• Need to set the PC’s IP address to 193.105.10.2 • Need to set PC’s subnet mask to 255.255.255.0 • Need to set PC’s gateway to 193.105.10.1

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Building a Network - Link (Point-to-Point) Testing
• Use the ping command to test each link is working
– Ping from Melb Router via fastethernet link to Melb PC
eg Melb#ping 145.50.0.2

– Ping from Melb Router via serial link to Syd Router
eg Melb#ping 13.0.0.2

– Ping from Syd Router via fastethernet link to Syd PC
eg Syd#ping 193.105.10.2

• Melb PC – In DOS Window, try pinging to Syd PC – What happens? – Why is...
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