D-Link DI-1162 - Manual (Page 56)

DI-1162 Remote Access Router
46 Configuration and Management
SNMP Authenticated Trap
Returning to the SNMP Agent Configuration menu, you can ‘Enable’
or ‘Disable’ an authentication failure trap message being sent to the
Management Station by the router. When an SNMP packet with an
invalid community name is received, it will be dropped. If this
parameter is enabled, a trap will be sent to the network manager; if this
parameter is disabled, no trap will be sent.