NET323 D:

NETWORKS PROTOCOLS

Lab # 10: FTP “File Transfer Protocol” Networks and Communication

Systems Department

TA. Anfal AlHazzaa

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Lab Objectives 2

To understand how FTP works

Networks and Communication Systems Department – Prepared By: TA. Anfal AlHazzaa

Lab Content

What is FTP (File Transfer Protocol)?

More info about FTP

FTP commands and replies

Common FTP commands

FTP replies

Scenario # 1: FTP (File Transfer Protocol)

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Networks and Communication Systems Department – Prepared By: TA. Anfal AlHazzaa

What is FTP (File Transfer Protocol)?

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The File Transfer Protocol (FTP) is a standard network

protocol used to transfer computer files from one host to

another host over a TCP-based network, such as the

Internet.

FTP is built on a client-server architecture and uses

separate control and data connections between the client

and the server

Networks and Communication Systems Department – Prepared By: TA. Anfal AlHazzaa

More info about FTP

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There are two players involved in any FTP transfer

1. The server or the site which is hosting the files

2. The client which contacts the server and requests to transfer a file.

To access FTP sever :

1. Most operating systems have a built in command line FTP client with which you would have to get familiar with the commands.

2. You can use your browser

3. You can download a specific software to run as a FTP client.

Networks and Communication Systems Department – Prepared By: TA. Anfal AlHazzaa

More info about FTP

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What you will need:

1. The address of the FTP server you wish to

communicate with (This can be an IP address or

a domain name)

2. The login credentials for a FTP account on the

server (you don’t need this for anonymous or

public FTP).

Networks and Communication Systems Department – Prepared By: TA. Anfal AlHazzaa

FTP commands and replies

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Networks and Communication Systems Department – Prepared By: TA. Anfal AlHazzaa

Common FTP commands

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Command Description

? to request help or information about the FTP commands

cd to change directory on the remote machine

delete to delete (remove) a file in the current remote directory

dir To give a full directory listing on the remote machine

get to find out the pathname of the current directory on the remote machine

help to request a list of all available FTP commands

pwd to find out the pathname of the current directory on the remote machine

put to copy one file from the local machine to the remote machine

quit to exit the FTP environment (same as bye

rename to change the name of file

Networks and Communication Systems Department – Prepared By: TA. Anfal AlHazzaa

FTP replies

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Every FTP command generates at least one response.

A response has two parts: a three digit number followed by text.

e.g.

The numeric part defines the code.

The first digit and second defines the status of the command.

The third digit provides additional information

the text part defines needed parameters or extra explanations.

Networks and Communication Systems Department – Prepared By: TA. Anfal AlHazzaa

Scenario # 1: FTP (File Transfer Protocol)

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1. Create a simple LAN contains two clients and FTP

server connected by switch (as shown in the figure)

2. Configure FTP server

3. Download a file from the FTP server

4. Upload a file to the FTP server

Networks and Communication Systems Department – Prepared By: TA. Anfal AlHazzaa

1. Open The Packet tracer

2. Add two PCs and one Server-PT to your workspace

3. Rename them and set their IPs as follows:

Step 1 : Create the network

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Device Type Device name IP Mask

PC Client 1 192.168.1.1 255.255.255.0

PC Client 2 192.168.1.2 255.255.255.0

Server FTP Server 192.168.1.254 255.255.255.0

Networks and Communication Systems Department – Prepared By: TA. Anfal AlHazzaa

Step 1 : Create the network cont.

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4. Drag Switch-PT to the workspace

5. Using Copper Straight-through cable connect the

end devices to the switch as follows:

Device name Switch ports

Client 1 Fast Ethernet 0/1

Client 2 Fast Ethernet 1/1

FTP Server Fast Ethernet 2/1

Networks and Communication Systems Department – Prepared By: TA. Anfal AlHazzaa

Step 2 : FTP Configuration .

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Click on the FTP Server then do the following steps:

1

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3. Turn FTP on

4. Create a new user by

typing your name as

username and password

5. Select the permissions

that you want to grant to

the user .

List of files stored on the FTP server

Networks and Communication Systems Department – Prepared By: TA. Anfal AlHazzaa

Step 2: Connect to FTP server (client 1)

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Click on client 1 “Desktop” tap Command Prompt

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Step 2: Connect to FTP server (client 1) cont.

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To connect to a FTP server, write the following

command

ftp 192.168.1.254

ftp command used to

connect to FTP server IP address of the FTP

server

Networks and Communication Systems Department – Prepared By: TA. Anfal AlHazzaa

Step 2: Connect to FTP server (client 1) cont.

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Then type the username and password of the FTP

server

Networks and Communication Systems Department – Prepared By: TA. Anfal AlHazzaa

List all available FTP commands

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Use help command to list all available FTP

command

Networks and Communication Systems Department – Prepared By: TA. Anfal AlHazzaa

Step 3: Download a file

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Use dir command to list the files stored in the FTP

server

Networks and Communication Systems Department – Prepared By: TA. Anfal AlHazzaa

Step 3: Download a file

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Use dir command to list the files stored in the FTP

server

Networks and Communication Systems Department – Prepared By: TA. Anfal AlHazzaa

Step 3: Download a file

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We want to download the file number 16 so copy

the name of the file.

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Step 3: Download a file

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Use get command followed by the file name to

download it to your computer

Type get followed by the name of

the file (paste the file name which

you copied in the previous step)

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To view the directory of your computer

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Use quit command to end the FTP session

Now you are in the C drive of your computer

Use dir command to list the files stored on your

computer.

You should find the file which

you downloaded from the FTP

server

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Step 4: Upload a file

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Firstly , we will create a text file using text editor

To open the text editor (Click on client 1

“Desktop” tap Text)

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Step 4: Upload a file

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To save your text file ( file menu save)

Name the file “Hello”

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To view the directory of your computer

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Use dir command to list the files stored on your

computer.

You should find the file which

you created in the previous step

Networks and Communication Systems Department – Prepared By: TA. Anfal AlHazzaa

Step 4: Upload a file

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Login again to the FTP server

Use put command followed by the file name to

upload it to your computer

Type put followed by the name of

the file (Hello.txt)

Networks and Communication Systems Department – Prepared By: TA. Anfal AlHazzaa

Step 4: Upload a file

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Use dir command to list the files stored on FTP

server you should find “Hello.txt” file

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Rename and Delate a file

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Try to rename the Hello.txt file to Hi.txt using

rename command

rename oldname newname

Try to delete the Hello.txt file using delete

command

delete filename

Networks and Communication Systems Department – Prepared By: TA. Anfal AlHazzaa

References

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Cisco Packet Tracer Help

Networks and Communication Systems Department – Prepared By: TA. Anfal AlHazzaa