Example for Using FTP to Operate Files

Files can be uploaded or downloaded using FTP.

Networking Requirements

As devices operate stably and are deployed on a large scale, more and more devices need to be maintained and upgraded remotely. Online software upgrade, a new upgrade method by loading software packages remotely, facilitates remote online upgrades, reduces upgrade expenditures, shortens the time that customers wait for upgrades, and improves customers' satisfaction. The delay, packet loss, and jitter affect data transmission on networks. To ensure the quality of online upgrade and data transmission, use FTP to perform online upgrades and transfer files based on TCP connections.

As shown in Figure 1, you can log in to the FTP server from the terminal emulation program to upload or download files.

Figure 1 File operations using FTP

Interface 1 in this example represents GigabitEthernet0/0/0.

Precautions

After you log in to the FTP server through the console port, configure an IP address of a logical interface as the source address for FTP login.

Configuration Roadmap

The configuration roadmap is as follows:

Configure an IP address for the management interface.
Enable the FTP server function.
Configure an authentication mode, authorization mode, and authorized directory.
Log in to the FTP server by using the correct user name and password.
Upload a file to or download a file from the FTP server.

Data Preparation

To complete the configuration, you need the following data:

IP address for the FTP server: 10.137.217.221
FTP user name: huawei
Path on which the file to be uploaded is saved and the path on which the file to be downloaded is saved

Procedure

Configure an IP address for the FTP server.

<HUAWEI> system-view
[~HUAWEI] sysname server
[*HUAWEI] commit
[~server] interface GigabitEthernet0/0/0
[~server-GigabitEthernet0/0/0] undo shutdown
[*server-GigabitEthernet0/0/0] ip address 10.137.217.221 255.255.0.0
[*server-GigabitEthernet0/0/0] quit
[*server] commit

Enable the FTP server function.

[~server] interface LoopBack 0
[~server-LoopBack0] ip address 10.1.1.1 255.255.255.255
[*server-LoopBack0] quit
[*server] ftp server enable
[*server] ftp server-source -i loopback 0
[*server] commit

Configure an authentication mode, authorization mode, and authorized directory.
```
[~server] aaa
[*server-aaa] local-user huawei password
Please configure the password (8-128)
Enter Password:
Confirm Password:
```
A password is entered in man-machine interaction mode. The system does not display the entered password.
When the user security policy is configured, the value is a string of 8 to 128 case-insensitive characters without spaces. When the user security policy is not configured, the value is a string of 1 to 128 case-insensitive characters without spaces.When the user security policy is configured, the password cannot be the same as the user name or its reverse. The password must contain the following characters: upper-case character, lower-case character, digit, and special character.
Special characters do not include question marks (?) or spaces. However, when double quotation marks are used around a password, spaces are allowed in the password.
Double quotation marks cannot contain double quotation marks if spaces are used in a password.
Double quotation marks can contain double quotation marks if no space is used in a password.

For example, the password "Aa123"45"" is valid, but the password "Aa 123"45"" is invalid.
```
[*server-aaa] local-user huawei service-type ftp
[*server-aaa] local-user huawei ftp-directory cfcard:/
[*server-aaa] local-user huawei level 3
[*server-aaa] quit
[*server] commit
```
Run the ftp command at the Windows command prompt, and enter the correct user name and password to set up an FTP connection to the FTP server.
Upload a file to or download a file from the FTP server.

You can run the dir command before downloading a file or after uploading a file to view the detailed information about the file.

FTP Server Configuration File

#
sysname server
#
aaa
 local-user huawei password cipher @%@%:BC"Qzkbh*9PhJU|U>mX,cZQ@%@%
 local-user huawei service-type ftp
 local-user huawei level 3
 local-user huawei ftp-directory cfcard:/
#
interface GigabitEthernet0/0/0
 undo shutdown
 ip address 10.137.217.221 255.255.0.0
#
interface LoopBack 0
 ip address 10.1.1.1 255.255.255.255
ftp server enable
ftp server-source -i loopback 0
#
return