3Com Router User Manual

							User Identity Management27
By default, no user is set on the router. In this case, the user can log onto the 
router without username and password, operating as the administrator user and 
have the right to execute all commands.
The router should be configured with at least one administrator user. This is 
because any user can log onto the router as the administrator user if no user is set 
on the router which could lead to a breach in network security.
If a user is configured on the router, no matter what type of user they are, when 
that user logs onto the router, it will prompt them to input the username and 
password. Only after the username and password are input correctly can the user 
log onto the router, and the system will give the user the corresponding access 
rights. 
The router can only be configured with the operator user and guest user after an 
administrator user has been configured.
If an operator user forgets their password, the administrator user can help them to 
modify the password. Also, they can enter into the boot menu (only on the 
HyperTerminal connected to the Console port) to clear the application password, 
and then reboot the router. At this time, the operator user can log onto the router 
without username and password.
If an administrator user forgets their password, they can modify the password 
through another administrator user identity. If there is no other administrator user, 
they can only enter into the boot menu (only on the HyperTerminal connected to 
the Console port) to clear the application password, and then reboot the router. In 
this case, the router will restore the default configuration, that is, no user is set on 
the router. Because the operation clears the configuration, the administrator must 
reconfigure all the functions and parameters.
Basic Configuration and 
Management of the 
SystemBasic configuration and management of the system includes:
■Configure the router name
■Set the system clock
■Reboot the system
1Configure the router name
Please perform the following command in all views.
Ta b l e 11   Configure the router name
By default, the router name is “Router”.
2Set the system clock
Please perform the following command in all views.
Ta b l e 12   Set the system clock
OperationCommand
Configure the router namesysname sysname
OperationCommand
Set the system clockclock hour:minute:second day month 
year 
						

							28CHAPTER 2: 3COM ROUTER USER INTERFACE
By default, the system clock is 08:00:00 1 1 1997.
The system clock will reset to the initial number when the configuration is deleted 
by using the delete command or is deleted at the boot menu. 
3Reboot the system
Please perform the following commands in all views.
Ta b l e 13   Reboot the system
Before rebooting the system, make sure to save the current configuration by using 
the save command, or some configuration may lost. 
Display the System 
Information of the 
RouterExecute the following commands in all views.
Ta b l e 14   Display the information of the Router
OperationCommand
Reboot the system right nowreboot [ reason reason-string ]
Reboot the system after a specified timereboot mode interval { hh:mm | time } 
[string ] 
Reboot the system at the specified timereboot mode time hh:mm [ dd/mm/yy ] 
[string ]
Cancel the reboot taskreboot cancel
OperationCommand
Displays the current date and clock of the 
routerdisplay clock
Displays the duration between the startup of 
the Router and the execution of the commanddisplay duration
Displays the router namedisplay systname
Displays the use information of the CPUdisplay processes cpu
Displays the use information of the router 
memorydisplay processes memory { all | 
blksize size } [ detail ]
Displays the basic information of the Routerdisplay base-information [ page ]
Displays the software version information of 
the Routerdisplay version 
						

							II
SYSTEM MANAGEMENT
Chapter 3System Management
Chapter 4Terminal Service
Chapter 5Configuring Network Management
Chapter 6Display and Debugging Tools
Chapter 7POS Terminal Access Service 
						

							30 
						

							3
SYSTEM MANAGEMENT
This chapter includes information on the following topics:
■Storage Media and File Types Supported by the System
■Upgrade Boot ROM Software
■Upgrade the 3Com Router Main Program Software
■Configure On-Line Upgrading of the Card
■Configuration File Management
■Configure FTP
Storage Media and 
File Types Supported 
by the SystemThe 3Com Router series has three types of storage media:
■DRAM (Dynamic Random Access Memory), where the 3Com Router main 
program executes.
■Flash memory, to save the 3Com Router main program/configuration file, etc.
■NVRAM (Non-Volatile Random Access Memory) can be used to save 
configuration file but not program file.
The 3Com Router series manage three types of software:
■Boot ROM file
■Program file
■Configuration file
Upgrade Boot ROM 
Software This section contains information to assist you with upgrading the Boot ROM 
software.
Upgrade router software carefully and under the guidance of technical support 
personnel. In addition, please refer to the release notes (in the software upgrade 
file packet) to make sure that the Boot ROM software version matches the 3Com 
Router main software version.
Router software includes Boot ROM software and the 3Com Router main program 
software, both of which can be upgraded by XModem only when the router is 
powered on for self-test. In Boot ROM software upgrade, first connect a computer 
external to the Console port of the router and run the terminal emulator on the 
computer. The specific upgrading procedure is:
1Power on the router for self-test, and the following information displays:
3Com Router start booting 
						

							32CHAPTER 3: SYSTEM MANAGEMENT
Quickly input Ctrl+D to enter the Boot ROM menu. If Ctrl+D is not input within 
three seconds, the system will restart the router and the following prompt 
information displays:
      ******************************************
      *                                                *
      * 3Com Router Series Bootrom, V4.25   *
      *                                                *
      ******************************************
  3Com Corporation Copyright(C) Reserved. 
  Compiled at 09:06:32 , Jun 13 2003.
   Now testing memory...OK!
256M    bytes  DRAM
   8192k  bytes  flash memory
  Press ENTER key to get start when you see ATS0=1.
  System now is starting... ATS0=1
2Input Ctrl+D, and the following prompt information displays:
Please input Bootrom password:
Input the Boot ROM password (directly key in Enter since there is no factory-set 
password for the routers). If the Boot ROM password has already been modified, 
input the correct one. If your attempts to input the correct password fail three 
times, the system will halt, and you must power off and then power on the router.
3If the input Boot ROM password is correct, the system will prompt:
 Boot Menu:
     1:  Download Bootrom program
     2:  Modify Bootrom password
     3:  Reboot
     Enter your choice (1-3):
In the above prompt:
■Select 1 to use XModem protocol to load router Boot ROM software.
■Select 2 to modify the Boot ROM password, and the system displays the 
following prompt:
Please input new password:*****
Retype  the  new password: *****
Saving the password... #
The system returns to the prompt displayed at step 3.
■Select 3 to restart the router.
4If 1 is selected, the system prompts you to select a baud rate for software loading.
 Please choose your download speed:
     1:    9600 bps
     2:   19200 bps
     3:   38400 bps
     4:   57600 bps
     5:  115200 bps
     6:  Exit and Reboot
     Enter your choice (1-6): 
						

							Upgrade Boot ROM Software33
5Example: if you select baud rate 115200 bps, the system will prompt you to 
modify the baud rate and select XMODEM transfer protocol:
 Download speed is 115200 bps. Change the terminals speed to 115200
 bps, and select XMODEM protocol. Press ENTER key when ready.
According to the above prompt, change the baud rate setting at the terminal to 
the number equal to the baud rate of the software selected to download. After 
having set the baud rate of the terminal, disconnect and then reconnect the 
terminal, then press Enter to begin downloading.
After having set the terminal baud rate, make sure to disconnect and then 
reconnect the terminal emulator. Otherwise, the new baud rate will not be 
effective.
6The router outputs the following information to indicate waiting for download:
Now Downloading Program File.
 Please Start Transfer Program File Use Xmodem Protocol.
 If You Want To Exit Press .
 Downloading...CCCCCCCCCC
Select Transfer/Send File from the terminal emulator menu to select the file to be 
downloaded, the following dialog box displays: 
Figure 15   “Send file” dialog box 
7Click Browse and select software to be downloaded. Change the downloading 
protocol to XMODEM, then click Send. The following message window displays: 
						

							34CHAPTER 3: SYSTEM MANAGEMENT
Figure 16   “Send file” message window
8After downloading, the router will save the file into Flash or NVRAM, display the 
following information, and prompt restoring of the baud-rate setting of the 
terminal emulator.
Download completed.
Writing to flash memory...
Please waiting, it needs a long time ##############
Write Bootrom Success.
Please return to 9600 bps. Press ENTER key to reboot the system.
The above information indicates that the information is downloaded. Boldface 
characters prompt the user to restore the baud rate setting of the terminal 
emulator. Click [Disconnect] in the terminal menu, and then click [Connect] once 
again. If the download fails, the system displays the following information, and 
reboot the router:
Download failed.
3Com Router start booting
……
If this message is displayed, you should find out the cause prior to upgrading.
9Restore baud rate of the terminal emulator. Press Enter and the Boot ROM 
software of the router will be directly decompressed and loaded into the memory 
for execution.
Upgrade the 3Com 
Router Main Program 
Software This section contains information to assist you with upgrading the 3Com Router 
Main Program software.
CAUTION: You are recommended to upgrade the software only when necessary 
and under the guidance of technical support personnel. The router software 
package includes the Boot ROM software and the 3Com Router main program 
software. When upgrading the software, remember to match the version of the 
Boot ROM software with that of the main software.  
						

							Upgrade the 3Com Router Main Program Software35
You can load the 3Com Router main software with XModem or TFTP (Trivial File 
Transfer Protocol) approach when powering on the router. Alternatively, you can 
load the software with the FTP (File Transfer Protocol) approach after the router is 
booted.
XModem Approach
1Power on the router. The router performs a Power-On Self-Test (POST), and the 
following information displays:
3Com Router start booting
******************************************
*                                        * 
*  3Com Router Series Boot rom, V4.32 * 
*                                        * 
******************************************
3Com Corporation Copyright(C) Reserved. 
Compiled at 17:47:11 , Mar 21 2003.
   Now testing memory...OK!
256M    bytes  SDRAM
   8192k  bytes  flash memory
  Press Ctrl-B to enter Boot Menu
Press Ctrl+B, and the system enters the menu for upgrading the 3Com Router 
main software.
The system will enter the menu for upgrading the 3Com Router main software 
unless you press Ctrl+B within three seconds of displaying “Press Ctrl-B to 
enter Boot Menu...
” on the screen. Otherwise, the system will start 
decompressing the program. Reboot the router if you want to enter the 3Com 
Router main software upgrade menu after program decompression is started.
2The system prompts the following information after you press Ctrl+B:
Please input Bootrom password:
Enter the Boot ROM password behind the prompt. If no default ex-factory Boot 
ROM password was set on the router, directly press Enter. If the user has modified 
the password, make sure to enter the correct one. If attempts for password 
authentication failed three times, the system will terminate the upgrading process.
3After the correct Boot ROM password is entered, the following information 
displays:
Boot Menu:
1: Download application program with XMODEM
2: Download application program with TFTP
3: Clear application password
4: Clear configuration
5: Exit and reboot
Enter your choice(1-5):
Choose an option as required. Notice that option 3 is used for entering the system 
view from the user password.
4Select 1, and the system prompts you to choose a baud rate for software loading:
Please choose your download speed:
1: 9600 bps
2: 19200 bps 
						

							36CHAPTER 3: SYSTEM MANAGEMENT
3: 38400 bps
4: 57600 bps
5: 115200 bps
6: Exit and Reboot
Enter your choice(1-6):
Make your selection as needed.
5After a baud rate (115200 bps for example) is selected, the system displays the 
following information to prompt you to modify the baud rate and select the 
XModem protocol:
Download speed is 115200 bps. Change the terminals speed to 
115200 bps, and select XMODEM protocol. Press ENTER key when ready.
Perform the operation as prompted to change the baud rate set on the terminal 
into the baud rate selected for software downloading.
Figure 17   Modify the terminal baud rate
Click OK after setting the new terminal baud rate. Click Disconnect and then 
Connect in the terminal interface to proceed to the next step.
You must disconnect and connect the terminal emulation program after modifying 
the baud rate of the terminal. Otherwise, the new baud rate cannot take effect.
6The router displays the following, indicating that the system is waiting for loading:
Now Downloading Program File.
Please Start Transfer Program File Use Xmodem Protocol.
If You Want To Exit Press .
Downloading...CCCCCCCCCC
Select [Transfer File] in the terminal emulation program menu and the following 
dialog box displays: