Secure Mode

IMPORTANT: Avaya recommends that you enable secure mode on all switches that are running v6.0 and later application software.

Secure mode restricts management of the switch to the following secure protocols:

When secure mode is enabled:

All non-secure protocols, such as Telnet, HTTP, and SNMPv1 and v2 are automatically disabled.
You cannot use IP to manage the standby supervisor module. Any IP interfaces that you configured to access the redundant supervisor module are deleted.

Table 4-1 describes exactly what happens when you enable and disable secure mode.

Table 4-1. Secure Mode
When you enable secure mode...	When you disable secure mode...
SNMP v1 and v2 are automatically disabled.	SNMP v1 and v2 are automatically reenabled if SNMP v3 is enabled.
SNMPv3 remains in its current state (enabled or disabled).	SNMPv3 remains in its current state (enabled or disabled).
HTTP and Telnet are automatically disabled.	HTTP and Telnet remain disabled until you manually reenable them.
SSH and HTTPS remain in their current state (enabled or disabled). If you do not enable SSH before logging out, you can manage the switch only by using SNMP v3, if enabled, or the console port. The only way to disable secure mode at this point is by entering the no secure mode command at the console port. If you enable SSH before logging out, you can manage the switch (and disable secure mode) by using an SSH session.	SSH and HTTPS remain in their current state (enabled or disabled).
You cannot use Telnet or the Web Agent to manage the standby supervisor. Any IP interfaces that you configured to access the redundant supervisor module are deleted.	Any IP interfaces that were deleted when you enabled secure mode remain deleted.