config agent as an snmptrap receiver(ver 4.6)

[tlqish_hyperic]

Dear all:

i'm follow this guide to configure it.http://support.hyperic.com/display/DOCS46/Configuring+Hyperic+as+an+SNMP+Trap+Receiver

used 192.168.240.253 send a trap to test,but get some message.
2011-11-16 08:52:20,293 DEBUG [SNMPTrapReceiver.0] [SNMPTrapReceiver] No plugin for '192.168.240.253', 'public', routing to default platform: 1:10001
2011-11-16 08:52:20,293 DEBUG [SNMPTrapReceiver.0] [SNMPTrapReceiver] plugin=1:10001, trapsReceived=5, pduType=-92, address=192.168.240.253, community=public, msg=

No plugin for .... why get this message?

Please give some suggestion. thanks all

[admin]

that message means there is no snmp platform defined with log tracking enabled for the ip address 192.168.240.253 and community string of public