Yes, you can use the 3.x client to connect to a 4.x concentrator. You canNOT use a 4.x concentrator with a 2.5 client.
The upgrade won't alter your existing config, although there will be some new features added. Make sure after the upgrade you go in and save the config, cause the new features aren't automatically saved. To take full advantage of these features you'll need to be running at least the 3.6 version of the client, preferably the 4.x version. You can check the Release Notes here:
As for the group password, go under Administration - Access Rights - Access Settings and set Config File Encryption to None. Hit teh Save icon to save your config. Now go under Admin - File Management and View the file called CONFIG. This is the concentrator config file, sort of like a win.ini format. Scroll down (or just Search) for your group name, and just below that it should list the password. Once you have it set the file encryption back to RC4 and save again.
With 4.0 Client i am able to connect to only one of my concentrators, i have specified backup peer in the pcf file. It always connects to the backup but using my existing client 3.1 i am able to connect.
Login to the FXOS chassis manager.
Direct your browser to https://hostname/, and log-in using the user-name and password.
Go to Help > About and check the current version:
Check the current version availa...
We have configured the outside and inside Interface with official ipv6 adresses, set a default route on outside Interface to our router, we also have definied a rule , which also gets hits, to permit tcp from inside Interface to any6.
In Syslog I also se...