About the JACE system shell menu
The system shell of the JACE provides simple, menu-driven, text-prompt access to basic
Changes issued in the system shell become immediately effective, except for IP address settings (Update Network Settings). You must reboot the JACE in order for any changed network settings to become effective.
NOTE: If SSH is enabled in the JACE, you can also access the controller’s system shell using a remote terminal session using SSH. Platform login is still required (just as with the JACE powered up in serial shell mode).
CAUTION: Be careful when changing items from the system shell, in particular platform account (login credentials, system passphrase) and network settings. If you change platform login credentials and then lose or forget them, you can restore the “factory default” platform login credentials—however, you will need to make a debug system shell connection, reboot the JACE, and then be careful to press a key at the appropriate time during JACE boot up.
Following, is an example of the system shell menu.
Figure 13. System shell menu (serial shell or Telnet access)
To select a menu option, type the associated number (1 to 9) or “L” for logout, then press Enter.
For example,
- type 2 (Update Network Settings) to recover IP access, or to set the IP settings of a new JACE.
- type 6 (Change System Passphrase) to change the system passphrase of the unit. You might do this if swapping in a microSD card from a previously configured unit, in order to change the passphrase of the unit to match the passphrase that is already stored on the SD card.