3Com 3036, Руководство по настройке

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38 C
HAPTER
3: S
YSTEM
M
ANAGEMENT
9 Restore the baud rate of the terminal emulation program to 9600 bps and press
Enter for rebooting the router so that the new 3Com Router main program
software can be run.
TFTP Approach TFTP is a protocol used for transferring trivial files between clients and servers in
the TCP/IP suite. It provides low-cost and simple file transfer service. Carried in
UDP, TFTP provides only the unreliable traffic transmission service without any
access authorization and authentication mechanism. It ensures data will reach
destinations with the approach of timeout retransmission. Compared with FTP, the
TFTP software is much smaller. At present, TFTP Version 2 (RFC 1350) is the most
popular version.
The 3Com Router can provide you with TFTP client service. That is, the router
works as a TFTP client, and the file server as the TFTP server. You can enter the
corresponding commands on the router to upload its configuration files to the file
server or download the configuration files from the file server into the Flash or
NVRAM of the local router.
Before using TFTP, you should purchase and install a TFTP server application as the
3Com Router does not come with a TFTP server application.
The TFTP server application can run on Windows 95/98/NT.
Preparation for using the TFTP server
1 Enable the TFTP server program
a Enable the TFTP server program. Select a PC installed with the Windows
95/98/NT operating system and an Ethernet card and start the TFTP server
program on the PC. (Alternatively, a PC running HyperTerminal can also be
used.) TFTPD32 in a Windows 98 environment will be taken as an example for
describing the procedure. The following figure shows a TFTPD32 interface.
Figure 20 TFTPD32 interface
b Set the directory for the TFTP server files. After enabling the TFTP server,
redefine a TFTP file directory and copy the desired 3Com Router main program
software into this directory. Alternatively, you can set the directory containing
the 3Com Router main program files as the directory for TFTP server files.
Specifically, click
Settings in the TFTPD32 interface, and the Tftpd32: Settings
for the interface as shown in Figure 21 are displayed.