Hi! I have been watch the ideas about snmptrap and my question is: How do I know if a trap was sent from my agent? What will appear in the screen or log file in the NMS (Network Manager Station)? Thank you and best regards, Murilo Murilo Fujita Engineer of Automation Universidade Federal de Itajuba lanas wrote: Le Mardi, 27 Mai 2008 12:24:10 +0100, "Dave Shield" <[EMAIL PROTECTED]> a écrit :Try running "monitor -S ...."Hi, Thanks for the info. So here's the config now: notificationEvent linkUpTrap linkUp ifIndex ifAdminStatus ifOperStatus notificationEvent linkDownTrap linkDown ifIndex ifAdminStatus ifOperStatus monitor -S -r 5 -e linkUpTrap "Generate linkUp" ifOperStatus != 2 monitor -S -r 5 -e linkDownTrap "Generate linkDown" ifOperStatus == 2 And here are the commands executed: 484 /etc/init.d/snmpd stop 485 /etc/init.d/snmpd start And this how the traps are received: /usr/sbin/snmptrapd -Lf ~/trap_log.txt -F "%02.2h:%02.2j TRAP:%W from %b %P %v\n" As you can see, there is still a bunch of msgs received at the startup: Shutting down: 08:02 TRAP:Cold Start from UDP: [192.168.1.22]:1025 TRAP2, SNMP v2c, community public DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (5452211) 15:08:42.11 SNMPv2-MIB::snmpTrapOID.0 = OID: NET-SNMP-AGENT-MIB::nsNotifyShutdown SNMPv2-MIB::snmpTrapEnterprise.0 = OID: NET-SNMP-MIB::netSnmpNotificationPrefix Starting up: 08:02 TRAP:Cold Start from UDP: [192.168.1.22]:1027 TRAP2, SNMP v2c, community public DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (47) 0:00:00.47 SNMPv2-MIB::snmpTrapOID.0 = OID: SNMPv2-MIB::coldStart SNMPv2-MIB::snmpTrapEnterprise.0 = OID: NET-SNMP-MIB::netSnmpAgentOIDs.10 Bunch of messages: (the test unit was idle since last afternoon - no link up/down and no autehnticationf ailure as far as I know) 08:03 TRAP:Cold Start from UDP: [192.168.1.22]:1027 TRAP2, SNMP v2c, community public DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (3048) 0:00:30.48 SNMPv2-MIB::snmpTrapOID.0 = OID: SNMPv2-MIB::authenticationFailure SNMPv2-MIB::snmpTrapEnterprise.0 = OID: NET-SNMP-MIB::netSnmpAgentOIDs.10 08:03 TRAP:Cold Start from UDP: [192.168.1.22]:1027 TRAP2, SNMP v2c, community public DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (3049) 0:00:30.49 SNMPv2-MIB::snmpTrapOID.0 = OID: IF-MIB::linkDown IF-MIB::ifIndex.5 = INTEGER: 5 IF-MIB::ifAdminStatus.5 = INTEGER: up(1) IF-MIB::ifOperStatus.5 = INTEGER: down(2) SNMPv2-MIB::snmpTrapEnterprise.0 = OID: NET-SNMP-MIB::netSnmpAgentOIDs.10 08:03 TRAP:Cold Start from UDP: [192.168.1.22]:1027 TRAP2, SNMP v2c, community public DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (3049) 0:00:30.49 SNMPv2-MIB::snmpTrapOID.0 = OID: IF-MIB::linkDown IF-MIB::ifIndex.6 = INTEGER: 6 IF-MIB::ifAdminStatus.6 = INTEGER: up(1) IF-MIB::ifOperStatus.6 = INTEGER: down(2) SNMPv2-MIB::snmpTrapEnterprise.0 = OID: NET-SNMP-MIB::netSnmpAgentOIDs.10 08:03 TRAP:Cold Start from UDP: [192.168.1.22]:1027 TRAP2, SNMP v2c, community public DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (3049) 0:00:30.49 SNMPv2-MIB::snmpTrapOID.0 = OID: IF-MIB::linkDown IF-MIB::ifIndex.7 = INTEGER: 7 IF-MIB::ifAdminStatus.7 = INTEGER: down(2) IF-MIB::ifOperStatus.7 = INTEGER: down(2) SNMPv2-MIB::snmpTrapEnterprise.0 = OID: NET-SNMP-MIB::netSnmpAgentOIDs.10 08:03 TRAP:Cold Start from UDP: [192.168.1.22]:1027 TRAP2, SNMP v2c, community public DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (3549) 0:00:35.49 SNMPv2-MIB::snmpTrapOID.0 = OID: IF-MIB::linkUp IF-MIB::ifIndex.1 = INTEGER: 1 IF-MIB::ifAdminStatus.1 = INTEGER: up(1) IF-MIB::ifOperStatus.1 = INTEGER: up(1) SNMPv2-MIB::snmpTrapEnterprise.0 = OID: NET-SNMP-MIB::netSnmpAgentOIDs.10 08:03 TRAP:Cold Start from UDP: [192.168.1.22]:1027 TRAP2, SNMP v2c, community public DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (3549) 0:00:35.49 SNMPv2-MIB::snmpTrapOID.0 = OID: IF-MIB::linkUp IF-MIB::ifIndex.3 = INTEGER: 3 IF-MIB::ifAdminStatus.3 = INTEGER: up(1) IF-MIB::ifOperStatus.3 = INTEGER: up(1) SNMPv2-MIB::snmpTrapEnterprise.0 = OID: NET-SNMP-MIB::netSnmpAgentOIDs.10 08:03 TRAP:Cold Start from UDP: [192.168.1.22]:1027 TRAP2, SNMP v2c, community public DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (3549) 0:00:35.49 SNMPv2-MIB::snmpTrapOID.0 = OID: IF-MIB::linkUp IF-MIB::ifIndex.4 = INTEGER: 4 IF-MIB::ifAdminStatus.4 = INTEGER: up(1) IF-MIB::ifOperStatus.4 = INTEGER: up(1) SNMPv2-MIB::snmpTrapEnterprise.0 = OID: NET-SNMP-MIB::netSnmpAgentOIDs.10 Curiously the following msgs - part of the same bunch - do not have the ifOperStatus, ifAdminStatus and ifIndex fields: 08:03 TRAP:Cold Start from UDP: [192.168.1.22]:1027 TRAP2, SNMP v2c, community public DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (6047) 0:01:00.47 SNMPv2-MIB::snmpTrapOID.0 = OID: IF-MIB::linkUp SNMPv2-MIB::snmpTrapEnterprise.0 = OID: NET-SNMP-MIB::netSnmpAgentOIDs.10 08:03 TRAP:Cold Start from UDP: [192.168.1.22]:1027 TRAP2, SNMP v2c, community public DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (6047) 0:01:00.47 SNMPv2-MIB::snmpTrapOID.0 = OID: IF-MIB::linkUp SNMPv2-MIB::snmpTrapEnterprise.0 = OID: NET-SNMP-MIB::netSnmpAgentOIDs.10 08:03 TRAP:Cold Start from UDP: [192.168.1.22]:1027 TRAP2, SNMP v2c, community public DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (6047) 0:01:00.47 SNMPv2-MIB::snmpTrapOID.0 = OID: IF-MIB::linkUp SNMPv2-MIB::snmpTrapEnterprise.0 = OID: NET-SNMP-MIB::netSnmpAgentOIDs.10 08:03 TRAP:Cold Start from UDP: [192.168.1.22]:1027 TRAP2, SNMP v2c, community public DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (6048) 0:01:00.48 SNMPv2-MIB::snmpTrapOID.0 = OID: IF-MIB::linkDown SNMPv2-MIB::snmpTrapEnterprise.0 = OID: NET-SNMP-MIB::netSnmpAgentOIDs.10 08:03 TRAP:Cold Start from UDP: [192.168.1.22]:1027 TRAP2, SNMP v2c, community public DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (6048) 0:01:00.48 SNMPv2-MIB::snmpTrapOID.0 = OID: IF-MIB::linkDown SNMPv2-MIB::snmpTrapEnterprise.0 = OID: NET-SNMP-MIB::netSnmpAgentOIDs.10 08:03 TRAP:Cold Start from UDP: [192.168.1.22]:1027 TRAP2, SNMP v2c, community public DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (6048) 0:01:00.48 SNMPv2-MIB::snmpTrapOID.0 = OID: IF-MIB::linkDown SNMPv2-MIB::snmpTrapEnterprise.0 = OID: NET-SNMP-MIB::netSnmpAgentOIDs.10 [No other msgs recevied] Minutes later I unplugged and plugged back an interface (eth2) cable and the correct link down/up traps were received. Looks good from now on. 08:14 TRAP:Cold Start from UDP: [192.168.1.22]:1027 TRAP2, SNMP v2c, community public DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (70561) 0:11:45.61 SNMPv2-MIB::snmpTrapOID.0 = OID: IF-MIB::linkDown IF-MIB::ifIndex.4 = INTEGER: 4 IF-MIB::ifAdminStatus.4 = INTEGER: up(1) IF-MIB::ifOperStatus.4 = INTEGER: down(2) SNMPv2-MIB::snmpTrapEnterprise.0 = OID: NET-SNMP-MIB::netSnmpAgentOIDs.10 08:14 TRAP:Cold Start from UDP: [192.168.1.22]:1027 TRAP2, SNMP v2c, community public DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (71561) 0:11:55.61 SNMPv2-MIB::snmpTrapOID.0 = OID: IF-MIB::linkUp IF-MIB::ifIndex.4 = INTEGER: 4 IF-MIB::ifAdminStatus.4 = INTEGER: up(1) IF-MIB::ifOperStatus.4 = INTEGER: up(1) SNMPv2-MIB::snmpTrapEnterprise.0 = OID: NET-SNMP-MIB::netSnmpAgentOIDs.10 The problem is with the quantity of traps received at the start up of the daemon, all bearing the same time stamp, making them practically worthless that is, if they actually picture an historical trace of events. 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