Re: SNMP Trap not working

2017-10-06 Thread Robert Story 
On Tue, 8 Aug 2017 20:42:39 + Michael wrote:
MS> This is my first time working with SNMP, but after reading the
MS> SNMP pages I'm still having trouble getting a simple shell
MS> script to run when receiving a trap.

Did you resolve this issue?

MS> Now it seems that the trap does get logged, because the system
MS> log file (/var/log/messages) has the following entry:
MS> 
MS> Aug  8 15:46:10  snmptrapd[29477]: 2017-08-08
MS> 15:46:10 localhost [UDP:
MS> [127.0.0.1]:44928->[127.0.0.1]]:#012DISMAN-EVENT-MIB::sysUpTimeInstance
MS> = Timeticks: (1338382434) 154 days,
MS> 21:43:44.34#011SNMPv2-MIB::snmpTrapOID.0 = OID:
MS> 
NET-SNMP-EXAMPLES-MIB::netSnmpExampleHeartbeatNotification#011NET-SNMP-EXAMPLES-MIB::netSnmpExampleHeartbeatRate
MS> = INTEGER: 123456

There are a few things that can prevent the trap handler from
running:

- permissions. make sure the script has execute permissions

- SELinux. If enabled, make sure that the script has the right
  context. Check /var/log/audit/audit.log for AVC errors.

Hope that helps.

Robert

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Re: SNMP Trap not working

2017-08-12 Thread Magnus Fromreide 
On Tue, Aug 08, 2017 at 08:42:39PM +, Michael Stein wrote:
> This is my first time working with SNMP, but after reading the SNMP pages I'm 
> still having trouble getting a simple shell script to run when receiving a 
> trap.
> 
> My /etc/snmp/snmptrapd.conf file looks like this:
> 
> # Example configuration file for snmptrapd
> #
> # No traps are handled by default, you must edit this file!
> #
> disableAuthorization yes
> authCommunity log,execute,net public
> # the generic traps
> traphandle default /usr/local/bin/snmptrapd.sh
> 
> The snmptrapd.sh script just says "hello".
> 
> #!/bin/sh
> 
> echo "hello"
> 
> The script is executable and runs when executed independently:
> 
> > /usr/local/bin/snmptrapd.sh
> Hello

This obviously isn't the output from a run of your script, but I would still
suggest that you modify it to read

---
#! /bin/sh

echo "hello" >> /tmp/my-log-file
---

With that change it seems to work for me.

/MF

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SNMP Trap not working

2017-08-09 Thread Michael Stein 
This is my first time working with SNMP, but after reading the SNMP pages I'm 
still having trouble getting a simple shell script to run when receiving a trap.

My /etc/snmp/snmptrapd.conf file looks like this:

# Example configuration file for snmptrapd
#
# No traps are handled by default, you must edit this file!
#
disableAuthorization yes
authCommunity log,execute,net public
# the generic traps
traphandle default /usr/local/bin/snmptrapd.sh

The snmptrapd.sh script just says "hello".

#!/bin/sh

echo "hello"

The script is executable and runs when executed independently:

> /usr/local/bin/snmptrapd.sh
Hello

The snmptrapd is running as a background process:

> ps -ef | grep snmp
root 29477 1  0 14:49 ?00:00:00 /usr/sbin/snmptrapd -Lsd -p 
/var/run/snmptrapd.pid -Cc /etc/snmp/snmptrapd.conf

And yet when I send a trap locally using snmptrap nothing happens:

> snmptrap -v 2c -c public localhost "" 
> NET-SNMP-EXAMPLES-MIB::netSnmpExampleHeartbeatNotification 
> netSnmpExampleHeartbeatRate i 123456
>

Now it seems that the trap does get logged, because the system log file 
(/var/log/messages) has the following entry:

Aug  8 15:46:10  snmptrapd[29477]: 2017-08-08 15:46:10 localhost
[UDP: [127.0.0.1]:44928->[127.0.0.1]]:#012DISMAN-EVENT-MIB::sysUpTimeInstance =
Timeticks: (1338382434) 154 days, 21:43:44.34#011SNMPv2-MIB::snmpTrapOID.0 =
OID: 
NET-SNMP-EXAMPLES-MIB::netSnmpExampleHeartbeatNotification#011NET-SNMP-EXAMPLES-MIB::netSnmpExampleHeartbeatRate
= INTEGER: 123456

When I added the -Ci option to the snmptrapd command line options I got the 
following error:

No log handling enabled - turning on stderr logging
: Unknown Object Identifier (Sub-id not found: (top) -> )

As far as I can see everything is set up correctly. If so, why is the trap 
handle not working and how can one check why the trap doesn't trigger the 
script?

Thanks in advance.

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Re: SNMP trap not working correctly for 64-bit varbinds

2011-04-04 Thread Dave Shield 
On 1 April 2011 21:25, Singh, Vinay  wrote:
> Any suggestions on how to send trap based upon 64-bit varbinds comparison.

Not really, no.

The only 64-bit type in SNMP is Counter64,
and individual counter values have no meaning.
So it doesn't really make sense to make comparisons using them.

Dave

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RE: SNMP trap not working correctly for 64-bit varbinds

2011-04-01 Thread Singh, Vinay 
Thanks a lot Dave for clarification.

Any suggestions on how to send trap based upon 64-bit varbinds comparison.
Thanks,
Vinay

-Original Message-
From: dave.shi...@googlemail.com [mailto:dave.shi...@googlemail.com] On Behalf 
Of Dave Shield
Sent: Friday, April 01, 2011 2:40 PM
To: Singh, Vinay
Cc: net-snmp-coders@lists.sourceforge.net
Subject: Re: SNMP trap not working correctly for 64-bit varbinds

On 1 April 2011 16:40, Singh, Vinay  wrote:
> #This trap dpes not work correctly ( 64 bit varbinds) - triggers if 
> the value is 0
>
> notificationEvent HaveRMSources6 DISMAN-EVENT-MIB::mteTriggerFalling 
> -o TNW-MIB::tnwSourceLbtrmAggNaksRcved
>
> monitor -e HaveRMSources6 -r 10 RMSource6 
> TNW-MIB::tnwSourceLbtrmAggNaksRcved  0 10


As far as I can tell, the DisMan Event MIB was designed for
use with 32-bit values only.   I don't believe it's possible to
monitor 64-bit counters using this MIB.

Note that the value objects - mteTriggerBooleanValue, 
mteTriggerThresholdRising, etc  are defined using the syntax  Integer32 so it's 
not really possible to compare these against 64-bit counter objects.

Dave

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Re: SNMP trap not working correctly for 64-bit varbinds

2011-04-01 Thread Dave Shield 
On 1 April 2011 16:40, Singh, Vinay  wrote:
> #This trap dpes not work correctly ( 64 bit varbinds) - triggers if the
> value is 0
>
> notificationEvent HaveRMSources6 DISMAN-EVENT-MIB::mteTriggerFalling -o
> TNW-MIB::tnwSourceLbtrmAggNaksRcved
>
> monitor -e HaveRMSources6 -r 10 RMSource6
> TNW-MIB::tnwSourceLbtrmAggNaksRcved  0 10


As far as I can tell, the DisMan Event MIB was designed for
use with 32-bit values only.   I don't believe it's possible to
monitor 64-bit counters using this MIB.

Note that the value objects - mteTriggerBooleanValue,
mteTriggerThresholdRising, etc  are defined using the
syntax  Integer32 so it's not really possible to compare
these against 64-bit counter objects.

Dave

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RE: SNMP trap not working correctly for 64-bit varbinds

2011-04-01 Thread Singh, Vinay 
I am testing using standard snmptrapd and in snmpd.conf file,  I have
used

trap2sink   localhost public. 

 

How do I make sure that it is v2 trap sink and not v1 as it appreas ?

 

Thanks,

Vinay

 

 

From: Fulko Hew [mailto:fulko@gmail.com] 
Sent: Friday, April 01, 2011 12:27 PM
To: David Chappelle
Cc: Singh, Vinay; net-snmp-coders@lists.sourceforge.net
Subject: Re: SNMP trap not working correctly for 64-bit varbinds

 

 

On Fri, Apr 1, 2011 at 1:23 PM, David Chappelle
 wrote:

I have the same issue and still confused with its appearance. Previously
we were running a 4yr old version of net-snmp. After recently upgrading
to 5.6 I started getting this error message in /var/log/snmp.log. Was it
suppressed before and now being reported?


I don't know.
 

How do I go about tracking down and fixing the underlying
problem?


a) only target v2 trap sinks
b) do not send traps that contain Counter64s (to non-v2 trap sinks, the
protocol doesn't allow it.)

 

 

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Re: SNMP trap not working correctly for 64-bit varbinds

2011-04-01 Thread Fulko Hew 
On Fri, Apr 1, 2011 at 1:23 PM, David Chappelle wrote:

> I have the same issue and still confused with its appearance. Previously we
> were running a 4yr old version of net-snmp. After recently upgrading to 5.6
> I started getting this error message in /var/log/snmp.log. Was it suppressed
> before and now being reported?
>

I don't know.


> How do I go about tracking down and fixing the underlying problem?
>

a) only target v2 trap sinks
b) do not send traps that contain Counter64s (to non-v2 trap sinks, the
protocol doesn't allow it.)
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RE: SNMP trap not working correctly for 64-bit varbinds

2011-04-01 Thread David Chappelle 
I have the same issue and still confused with its appearance. Previously we 
were running a 4yr old version of net-snmp. After recently upgrading to 5.6 I 
started getting this error message in /var/log/snmp.log. Was it suppressed 
before and now being reported? How do I go about tracking down and fixing the 
underlying problem?

From: Fulko Hew [mailto:fulko@gmail.com]
Sent: Friday, April 01, 2011 1:13 PM
To: Singh, Vinay
Cc: net-snmp-coders@lists.sourceforge.net
Subject: Re: SNMP trap not working correctly for 64-bit varbinds


On Fri, Apr 1, 2011 at 11:40 AM, Singh, Vinay 
mailto:vsi...@informatica.com>> wrote:
Hi,
  I am testing snmpd with subagent. Any trap for 64-bit varbind does not 
get delivered to snmptrapd. No Problem with 32-bit varbinds. I get error in
snmpd.log

# cat snmpd.log
registered debug token Disman, 1
Turning on AgentX master support.
NET-SNMP version 5.6
send_trap: v1 traps can't carry Counter64 varbinds
send_trap: failed to convert v2->v1 template PDU


... snip ...

That is because Counter64 was added in SNMP v2, and is therefore also supported 
in V2 traps.
But since Counter64 did not exist in SNMP v1, it therefore cannot be encoded 
into V1 traps.

ie. Counter64 is forwards compatible, but not backwards compatible.



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Re: SNMP trap not working correctly for 64-bit varbinds

2011-04-01 Thread Fulko Hew 
On Fri, Apr 1, 2011 at 11:40 AM, Singh, Vinay wrote:

> Hi,
>
>   I am testing snmpd with subagent. Any trap for 64-bit varbind does
> not get delivered to snmptrapd. No Problem with 32-bit varbinds. I get error
> in
>
> snmpd.log
>
>
>
> # cat snmpd.log
>
> registered debug token Disman, 1
>
> Turning on AgentX master support.
>
> NET-SNMP version 5.6
>
> send_trap: v1 traps can't carry Counter64 varbinds
>
> send_trap: failed to convert v2->v1 template PDU
>


... snip ...

That is because Counter64 was added in SNMP v2, and is therefore also
supported in V2 traps.
But since Counter64 did not exist in SNMP v1, it therefore cannot be encoded
into V1 traps.

ie. Counter64 is forwards compatible, but not backwards compatible.
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SNMP trap not working correctly for 64-bit varbinds

2011-04-01 Thread Singh, Vinay 
Hi,

  I am testing snmpd with subagent. Any trap for 64-bit varbind does
not get delivered to snmptrapd. No Problem with 32-bit varbinds. I get
error in 

snmpd.log 

 

# cat snmpd.log

registered debug token Disman, 1

Turning on AgentX master support.

NET-SNMP version 5.6

send_trap: v1 traps can't carry Counter64 varbinds

send_trap: failed to convert v2->v1 template PDU

 

My snmpd.conf

# cat snmpd.conf

syslocation  "Vinay's desktop"

syscontact  vsi...@informatica.com

sysservices 12

createUser gfro MD5 "vinaysingh" DES

rwuser vinay

rocommunity  public

com2sec vinaydefault privvyr

 

group   vinayv2c gfro

 

# access for the two read only groups to their individual views

access  vinay""  any noauth  exact   fullnonenone

#

 

master  agentx

agentgroup  daemon

AgentXSocket tcp:localhost:705

trap2sink   localhost public

iquerySecName vinay

agentSecName vinay

 

# No Problem with this trap

proc wireshark 1

proc  xterm 1 0

linkUpDownNotifications yes

# No Problem with this trap

monitor   -r 10 -o UCD-SNMP-MIB::prNames -o UCD-SNMP-MIB::prErrMessage
"process table" UCD-SNMP-MIB::prErrorFlag != 0

 

#This trap dpes not work correctly ( 64 bit varbinds) - triggers if the
value is 0

notificationEvent HaveRMSources6 DISMAN-EVENT-MIB::mteTriggerFalling -o
TNW-MIB::tnwSourceLbtrmAggNaksRcved

monitor -e HaveRMSources6 -r 10 RMSource6
TNW-MIB::tnwSourceLbtrmAggNaksRcved  0 10

 

#This trap dpes not work correctly ( 64 bit varbinds) - Never triggers
even if TNW-MIB::tnwSourceLbtrmAggNaksRcved is more than 10

notificationEvent HaveRMSources7 DISMAN-EVENT-MIB::mteTriggerRising -o
TNW-MIB::tnwSourceLbtrmAggNaksRcved

monitor -e HaveRMSources7 -r 10 RMSource7
TNW-MIB::tnwSourceLbtrmAggNaksRcved > 10

 

# No Problem with this trap ( 32-bit varbinds)

notificationEvent HaveRMSources DISMAN-EVENT-MIB::mteTriggerFired -o
TNW-MIB::tnwSourceLbtrmNumberOfEntries
TNW-MIB::tnwReceiverLbtrmNumberOfEntries

monitor -e HaveRMSources -r 10 RMSource
TNW-MIB::tnwSourceLbtrmNumberOfEntries > 0

 

#

# No Problem with this trap ( 32-bit varbinds)

notificationEvent HaveRMSources2 DISMAN-EVENT-MIB::mteTriggerFalling -o
TNW-MIB::tnwSourceLbtrmNumberOfEntries

monitor -e HaveRMSources2 -r 10 RMSource2
TNW-MIB::tnwSourceLbtrmNumberOfEntries == 0

 

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Re: snmp trap not working.

2008-03-18 Thread Dave Shield 
On 18/03/2008, Siva Prakash Reddy G <[EMAIL PROTECTED]> wrote:
> I have generated SNMP trap code using mib2c.notify.conf file.
> Generated code compiled perfectly and executing perfectly but it is not
> sending trap I don't Understood why?

Because you are using an agent-only API call in a non-agent application.

> I have shown sample code below, please go thru it and help me out
> where I'm doing wrong.

> send_v2trap (var_list);

You can *not* use this call to send the trap.
You must use 'snmp_send'.

See the code for snmptrap.c for details.

> I just won't know How SNMP trap will be sent and how he will get 
> the
> manager ipAddress and port no before sending a trap.

Exactly - your application doesn't know where to send the trap.
It's trying to use an agent-only call, but without the accompanying
modules that provide this information.
   This is the wrong approach for a client-side application.



> When I restart the agent I'm receiving the trap because I have written my
> IPAddress in /etc/snmp/snmpd.conf file. How this is working.

There is a separate MIB module which handles details of trap destinations
for notifications sent by the agent.   But this *ONLY* works for the agent.
It doesn't work for client-side applications.

Dave

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snmp trap not working.

2008-03-18 Thread Siva Prakash Reddy G 

Hi!

I have generated SNMP trap code using mib2c.notify.conf
file. Generated code compiled perfectly and executing perfectly but it
is not sending trap I don't

Understood why?. I have shown sample code below, please go thru it and
help me out where I'm doing wrong.



#include 

#include 

#include 

#include 

#include "Trap.h"



int

send_ampTempHighMark_trap (size_t ampTempHighVal)

{

netsnmp_variable_list *var_list = NULL;



Oid ampTempHighMarkTrap_oid [] = {1, 3, 6, 1, 4, 1, 13995,
4, 5};

Oid ampTempHighMark_oid [] = {1, 3, 6, 1, 4, 1, 13995,
2, 1, 1, 0};



snmp_varlist_add_variable (&var_list,

snmptrap_oid, OID_LENGTH (snmptrap_oid),

ASN_OBJECT_ID,

(u_char *) ampTempHighMarkTrap_oid,

sizeof (ampTempHighMarkTrap_oid) );



snmp_varlist_add_variable (&var_list,

ampTempHighMark_oid, OID_LENGTH
(ampTempHighMark_oid),

ASN_INTEGER, (u_char *) &TempHighVal,

sizeof (ampTempHighVal) );

/* Send the trap to the list of configured destinations

 * and clean up

 */

send_v2trap (var_list);

   snmp_free_varbind (var_list);

  return SNMP_ERR_NOERROR;

}





main ()

{

int tempVal = 50;

init_traps ();

While (1)

{

#ifndef DISABLE_TEMPHIGMARK_TRAP

if( tempVal > THRESHOLD_VALUE )

{

send_ampTempHighMark_trap( tempVal );

tempVal = 50;

}

#endif

}



I just won't know How SNMP trap will be sent and how he will
get the manager ipAddress and port no before sending a trap.

When I restart the agent I'm receiving the trap because I have written
my IPAddress in /etc/snmp/snmpd.conf file. How this is working.



I guess I'm missing out some points. Please any body implemented traps
or anybody faced the same problem please help me out. 







   With Regards,

G. Siva Prakash Reddy.









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