User Manual

Operating the router 41
Software Release 2.5.2
C613-02034-00 REV A
See the Operations chapter in the AR400 Series Router Software Reference for:
■ More information about managing and using accounts with user, manager
and security officer privileges
■ A full list of commands that require security officer privilege when the
router is in secure mode
■ Information about enabling a remote security officer.
Normal Mode and Security Mode
The router operates in one of two modes, either normal mode or security
mode. By default, the router is in normal mode.
When the router is in security mode, the command SHOW DEBUG does not display
output of the SHOW FEATURE and SHOW CONFIGURATION DYNAMIC
commands, or the current configuration in the SHOW SYSTEM output unless the
SHOW DEBUG command is entered by a user with security officer privilege.
If you wish to use the following software features you need to enable security
mode:
■ IP authentication
■ Secure Shell (see the Secure Shell chapter, AR400 Series Router Software
Reference)
■ Encryption (see the Compression and Encryption Services chapter, AR400
Series Router Software Reference)
■ IPsec (see the IP Security chapter, AR400 Series Router Software Reference)
■ Public Key Encryption (PKI) (see the Public Key Infrastructure chapter,
AR400 Series Router Software Reference)
To enable security mode, first create a user with security officer privilege, then
enter the command:
ENABLE SYSTEM SECURITY_MODE
To access secure functionality you will need to log in again as the security
officer.
When the router restarts, it restarts in the same normal mode or security mode
as it was before restarting. To restore the router to normal operating mode,
enter the command:
DISABLE SYSTEM SECURITY_MODE
When security mode is disabled, the router automatically deletes all sensitive
data files, including encryption keys.
To display the current operating mode, enter the command:
SHOW SYSTEM
When the router is in security mode, a user with security officer privilege is the
only person who can execute commands which affect router security. Table 4