SNMP OIDs for SonicWALL™ Secure Remote Access (SRA)
All from Private MIB(s)

The time and date when the last user was denied authentication. The string is in the formWed Jun 30 21:49:08 2008, in the same time zone for which the appliance is configured.
The URLhost:port or host of the last resource to which access was denied.
The time and date when the last user was denied access. The string is in the form Wed Jun 30 21:49:08 2008, in the same time zone for which the appliance is configured.