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52 CHAPTER 3: SYSTEM MANAGEMENT
Table 28 Set/clear the flag bit to enter the initial setup
By default, no flag bit for entering the initial setup mode is set.
Configure FTP FTP (File Transfer Protocol), which belongs to the application layer protocol in the
TCP/IP protocol suite, mainly provides file transfer between remote hosts. Borne
on TCP, FTP provides reliable and connection-oriented data transfer service but
does not provide access authorization and authentication mechanism.
When the client originates control connection to a server (with port command)
and establishes control connection with the server port numbered 21 via an
arbitrarily allocated local protocol port number, this connection will be reserved
until data transfer is complete. The server establishes data connection with the
client via port 20 and transfer data.
The 3Com Router 1.x provides FTP service, that is, the router serves as the FTP
server. Users can run the FTP client application and logon to the router to access
files on the router.
Before using FTP, users need to install the FTP Client application. You need to
purchase the FTP Client application as this is not supplied as part of the 3Com
Router series.
Configure FTP Server FTP server configuration includes:
■ Configure authentication and authorization of the FTP server
■ Start FTP server
■ Upload the configuration file/program file
■ Download the configuration file/program file
■ Configure the running parameters of FTP server
Configure authentication and authorization of FTP server
1 Set the authentication mode of the FTP server
The authorization information of the FTP server is the top-level working directory
of FTP users. Only authenticated and authorized users can enjoy the service of the
FTP server. The 3Com Router 1.x configures authentication and authorization of
the FTP user using AAA. If no AAA is configured, the local user authentication is
adopted by default.
When using AAA, the router cannot perform local accounting. Therefore, when
using local authentication, you need to open the accounting option switch to
disable the accounting function.
Please configure with the following commands in system view.
Operation Command
Set the flag bit to enter initial setup mode first-config set
Clear the flag bit of initial setup mode first-config reset