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.

Thanks.


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