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Appendix A describes common errors that can occur while configuring and using the system, and how to correct them. It also describes LED indicators on the system and its expansion modules.
The VPN 3000 Concentrator creates several files that you can examine and that can assist Cisco support engineers when troubleshooting errors and problems:
The VPN Concentrator records system events in the event log, which is stored in nonvolatile memory (NVRAM). To troubleshoot operational problems, we recommend that you start by examining the event log. See Configuration | System | Events and Monitor | Event Log.
The VPN Concentrator automatically saves the event log to a file in flash memory if it crashes, and when it is rebooted. This log file is named SAVELOG.TXT, and it overwrites any existing file with that name. The SAVELOG.TXT file is useful for debugging. See Configuration | System | Events and Administration | File Management | Files.
If the VPN Concentrator crashes during operation, it saves internal system data in nonvolatile memory (NVRAM), and then automatically writes this data to a CRSHDUMP.TXT file in flash memory when it is rebooted. This file contains the crash date and time, software version, tasks, stack, registers, memory, buffers, and timers., which are helpful to Cisco support engineers. In case of a crash, we ask that you send this file when you contact Technical Assistance Center (TAC) for assistance. See Administration | File Management | Files for information on managing files in flash memory.
The VPN Concentrator saves the current boot configuration file (CONFIG) and its predecessor (CONFIG.BAK) as files in flash memory. These files may be useful for troubleshooting. See Administration | File Management | Files for information on managing files in flash memory.
Table A-1 lists errors that might occur while using the HTML-based VPN Concentrator Manager with a browser.
Table A-1 VPN Concentrator Manager Errors
Symptom | Problem | Possible Cause | Solution |
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You clicked the Refresh or Reload button on the browser navigation toolbar, and the Manager logged out. The main login screen appears. |
To protect access security, clicking Refresh / Reload on the browser toolbar automatically logs out the Manager session. |
Do not use the browser navigation toolbar buttons with the VPN Concentrator Manager. Use only the Manager Refresh button where it appears on a screen. We recommend that you hide the browser navigation toolbar to prevent mistakes. |
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Browser Back or Forward Button displays an Incorrect Screen or Incorrect Data. |
You clicked the Back or Forward button on the browser navigation toolbar, and the Manager displayed the wrong screen or incorrect data. |
To protect security and the integrity of data entries, clicking Back or Forward on the browser toolbar deletes pointers and values within the Manager. |
Do not use the browser navigation toolbar buttons with the VPN Concentrator Manager. Navigate using the location bar at the top of the Manager window, the table of contents in the left frame, or links on Manager screens. We recommend that you hide the browser navigation toolbar to prevent mistakes. |
The Manager displays the Invalid Login or Session Timeout screen. |
You entered an invalid administrator login name and password combination. |
Reenter the login name and password and click Login. Use a valid login name and password. type carefully. |
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The Manager displays the Invalid Login or Session Timeout screen. |
The Manager session has been idle longer than the configured timeout interval. |
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On the Administration | Access Rights | Access Settings screen, change the Session Timeout interval to a larger value and click Apply. |
The Manager displays a screen with the message, "Error/ An error has occurred while attempting to perform the operation. An additional error message describes the erroneous operation. |
Click Retry the operation to return to the screen where you were working and correct the mistake. Carefully check all your previous entries on that screen. The Manager attempts to retain valid entries, but invalid entries are lost. |
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The Manager displays a screen with the message, "You are using an old browser or have disabled JavaScript..." |
The VPN Concentrator Manager cannot work with the browser that you have invoked. |
Use Microsoft Internet Explorer version 4.0 or higher. Use Netscape Navigator version 4.5 or higher. Be sure JavaScript is enabled in the browser. (See the "Browser Requirements" section of this manual.) |
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The Manager displays a screen with the message, "Not Allowed/You do not have sufficient authorization to access the specified page." |
You tried to access an area of the Manager that you do not have authorization to access. |
Log in using the system administrator login name and password. (Defaults are Log in from a workstation with greater access privileges. Have the system administrator change your privileges on the Administration | Access Rights | Administrators screen. Have the system administrator change the privileges of your workstation on the Administration | Access Rights | Access Control List screen. |
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The Manager displays a screen with the message, "Not Found / An error has occurred while attempting to access the specified page." The screen includes additional information that identifies system activity and parameters. |
Clear the browser cache: delete its temporary internet files, history files, and location bar references. Then try again. |
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Please note the system information on the screen and contact TAC for assistance. |
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Microsoft Internet Explorer displays a Script Error dialog box that includes the error message, "No such interface supported." |
While using a Manager function that opens another browser window (such as Save Needed, Help, or Software Update), Internet Explorer cannot open the window and displays the error dialog box. |
1. Click No on the error dialog box. |
Table A-2 lists errors that might occur while using the menu-based Command-line Interface from a console or Telnet session.
Table A-2 VPN 3000 Concentrator Command-Line Interface Errors
LED indicators on the VPN Concentrator and its expansion modules are normally green. The usage gauge LEDs are normally blue. LEDs that are amber or off might indicate an error condition. NA means not applicable; that is, the LED does not have that state.
Contact TAC if any LED indicates an error condition.
The LEDs on the front of the VPN 3000 Concentrator are as follows:
Usage Gauge LEDs (Models 3015-3080 only) |
Steady or Intermittent Blue | Blinking Blue |
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VPN Concentrator is in a shutdown (halted) state, ready to power off. |
The LEDs on the rear of the VPN 3000 Concentrator are as follows:
SEP (Scalable Encryption Processing) module LEDs are present only on models 3015 through 3080 and are visible from the rear of the VPN Concentrator.
Posted: Fri Apr 18 16:48:10 PDT 2003
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