snmpinform and not in time window

[Pushpa Thimmaiah]

Hi Folks,

When SNMP agent sends snmpinform, trapreceiver (snmptrapd) displays 'not
in time window' error



command : snmptrap -t 6 -v 3 -Ci -n "" -a MD5 -A 123password -l authNoPriv
-u testinform 172.16.1.10 69 .1.3.6.1.4.1.8072.2.3.1
.1.3.6.1.4.1.8072.2.1.1 i 44

I am facing two issues
1. snmptrapd (trapreceiver) shows 'not in time window'

Snmpagent running on ubuntu . Its time setting is IST
snmptrapd runnning on ubuntu . Its time setting is UST

Does this causing 'not in time window' ? how it can be resolved


2. It looks like agent keep retrying to send inform, hence command(above
mentioned) 'snmptrap' got struck and I had to kill the process
I did tried option '-r' but still it will get struck

snmptrap -r 0 -v 3 -Ci -n "" -a MD5 -A password123 -l authNoPriv -u
testinform 172.16.1.10 69 .1.3.6.1.4.1.8072.2.3.1 .1.3.6.1.4.1.8072.2.1.1 i
44

Thank you,
Pushpa.T

[Pushpa Thimmaiah]

Hi Folks,

Adding to previous mail.
trap receiver shows no error for traps received from the agent.

On Sat, Nov 7, 2015 at 12:00 AM, Pushpa Thimmaiah <

Post by Pushpa Thimmaiah
Hi Folks,
When SNMP agent sends snmpinform, trapreceiver (snmptrapd) displays 'not
in time window' error
command : snmptrap -t 6 -v 3 -Ci -n "" -a MD5 -A 123password -l
authNoPriv -u testinform 172.16.1.10 69 .1.3.6.1.4.1.8072.2.3.1
.1.3.6.1.4.1.8072.2.1.1 i 44
I am facing two issues
1. snmptrapd (trapreceiver) shows 'not in time window'
Snmpagent running on ubuntu . Its time setting is IST
snmptrapd runnning on ubuntu . Its time setting is UST
Does this causing 'not in time window' ? how it can be resolved
2. It looks like agent keep retrying to send inform, hence command(above
mentioned) 'snmptrap' got struck and I had to kill the process
I did tried option '-r' but still it will get struck
snmptrap -r 0 -v 3 -Ci -n "" -a MD5 -A password123 -l authNoPriv -u
testinform 172.16.1.10 69 .1.3.6.1.4.1.8072.2.3.1 .1.3.6.1.4.1.8072.2.1.1 i
44
Thank you,
Pushpa.T

[Pushpa Thimmaiah]

Hi Folks,

I did debug using wireshark and following is my observation

1. there are totally four messages . This is correct behaviour
get-request (agent to trapreceiver)
report (trapreceiver to agent)
informRequest (agent to trapreceiver)
get-response (trapreceiver to agent)

2. In 'report' message pdu, msgAuthoritiveEngineID,
msgAuthoritiveEngineBoots and msgAuthoritiveEngineTime contains values of
engineid, engineboots, enginetime of 'trapreceiver' . This is correct
behavior

But, In 'informRequest' PDU both boot and time ( msgAuthoritiveEngineBoots
and msgAuthoritiveEngineTime )contains values of the snmp-agent's boot and
time. I have doubt here.
According to my knowledge snmp-agent should use 'trapreceiver's" boot and
time which got in message 'report' .

Kindly let me know why snmpagent using its boot and time in outgoing
'informRequest' message?

Thank you,
Pushpa. T

On Sat, Nov 7, 2015 at 12:20 AM, Pushpa Thimmaiah <

Post by Pushpa Thimmaiah
Hi Folks,
Adding to previous mail.
trap receiver shows no error for traps received from the agent.
On Sat, Nov 7, 2015 at 12:00 AM, Pushpa Thimmaiah <

Post by Pushpa Thimmaiah
Hi Folks,
When SNMP agent sends snmpinform, trapreceiver (snmptrapd) displays
'not in time window' error
command : snmptrap -t 6 -v 3 -Ci -n "" -a MD5 -A 123password -l
authNoPriv -u testinform 172.16.1.10 69 .1.3.6.1.4.1.8072.2.3.1
.1.3.6.1.4.1.8072.2.1.1 i 44
I am facing two issues
1. snmptrapd (trapreceiver) shows 'not in time window'
Snmpagent running on ubuntu . Its time setting is IST
snmptrapd runnning on ubuntu . Its time setting is UST
Does this causing 'not in time window' ? how it can be resolved
2. It looks like agent keep retrying to send inform, hence command(above
mentioned) 'snmptrap' got struck and I had to kill the process
I did tried option '-r' but still it will get struck
snmptrap -r 0 -v 3 -Ci -n "" -a MD5 -A password123 -l authNoPriv -u
testinform 172.16.1.10 69 .1.3.6.1.4.1.8072.2.3.1 .1.3.6.1.4.1.8072.2.1.1 i
44
Thank you,
Pushpa.T