System information

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Release Notes for Cisco VPN 3000 Series Concentrator, Release 3.6 Through 3.6.8.B
OL-5637-02
Upgrading to Release 3.6.x
Caution Be sure you install the correct file for the platform you are upgrading.
If you are using Internet Explorer, use version 5.0, Service Pack 2 or higher.
Upgrading to Release 3.6.x
This section contains information about upgrading from earlier releases to Release 3.6.x.
When upgrading VPN 3000 Concentrator releases, you must clear the cache in your browser to ensure
that all new screens display correctly when you are managing the VPN Concentrator.
Note You must also log in and click “Save Needed” to add new Release 3.6.x parameters to the configuration
file. These new Release 3.6.x parameters are added to the running configuration immediately, but they
are not added to the saved configuration until you click the “Save Needed” or “Save” icon in the VPN
Concentrator Manager.
Upgrading to a new version of the VPN 3000 Concentrator software does not automatically overwrite
the existing configuration file. Configuration options for new features (for example, IKE proposals) are
not automatically saved to the configuration file on an upgrade. The HTML Manager displays “Save
Needed” (rather than “Save”) to indicate that the configuration needs to be saved. If the configuration is
not saved, then on the next reboot, the new configuration options are added again. If you need to send
the configuration file to the TAC, save the running configuration to the configuration file first.
Before You Begin
Before you upgrade to this release, back up your existing configuration to the flash and to an external
server. This ensures that you can return to the previous configuration and software if you need to.
Be aware of the following considerations before you upgrade. These are known product behaviors, and
your knowing about them at the beginning of the process should expedite your product upgrade
experience. Where appropriate, the number of the caveat documenting the issue appears at the end of the
item. See Open Caveats for VPN 3000 Series Concentrator, page 15 for a description of using this
number to locate a particular caveat.
Release 3.6.8 of the VPN 3000 Concentrator software contains several features that interact with
corresponding new features in the Release 3.6.x versions of the VPN Client and VPN 3002 Hardware
Client software. To get the full benefit of this release you should upgrade your client software as well as
your concentrator software. The VPN 3000 Concentrator software, Release 3.6.8, does operate with
VPN Client and VPN 3002 Hardware Client versions 3.0 and higher, but you should upgrade these, too,
to take full advantage of the new features.
• To use the VPN Client, Release 3.0 or higher, you must upgrade the VPN Concentrator to Release
3.0 or higher. The VPN Client, Release 3.0 or higher, does not operate with the VPN 3000
Concentrator version 2.5 or earlier versions.
• Do not update the VPN 3000 Concentrator when the system is under heavy use, as the update might
fail (CSCdr61206).
• If you are upgrading from Release 3.0 to Release 3.1 or higher and you are using the “Group
Lookup” feature, you must manually set Group Lookup after the upgrade. To enable this feature, go
to Configuration | System | General | Authentication and select the Enable check box (CSCdu63961).