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Both cases are my interests... But where should I copy my applets and classes to get those found by mango's graphical views HTML insert. I only get errors: Can't find class.xxx etc. etc. when I have tried

Ensure that there is no other SNMP Trap service running on the Mango server except Mango SNMP Trap. You can see this on a Linux system by executing the following command. netstat -unatp |grep udp udp 0 0 :::162 :::* 18938/java There should be a UDP port listening on 162 and should be bound to java Create a SNMP Data Source Download TrapGen.exe from http://www.wtcs.org/informant/free_snmp_tools.htm Create Trap Gen Command and note down the OID (-v .1.3.1.4.1.2854.1.2) TrapGen.exe -d x.x.x.x -o .1.3.1.4.1.2854 -v .1.3.1.4.1.2854.1.2 INTEGER 20 Note : x.x.x.x ( Mango server IP Address) Configure a Data Point with a SNMP Trap OID (.1.3.1.4.1.2854.1.2) Execute the TrapGen command TrapGen.exe -d x.x.x.x -o .1.3.1.4.1.2854 -v .1.3.1.4.1.2854.1.2 INTEGER 20 You should see the Trap received in Watchlist. Note : Incase if the SNMP OID is not configured as in the trapgen command check the mango log file and you should see a warning like the one below. /mango/apache-tomcat-6.0.20/logs/mango.log:WARN 2009-10-08 09:31:24,070 (com.serotonin.mango.rt.dataSource.snmp.SnmpDataSourceRT.receivedTrap:236) - Trap not handled: 1.3.1.4.1.2854.2.2 = 200