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Unable to Monitor RHEL7 SNMP

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WE are running PRTG Network Monitor 16.1.21.1422 x64. When attempting to add snmp monitoring of CPU/Mem/DIsk for RHEL7, we always got the #222 error.

SNMPTester would return the following errors when we attempt to scan the interfaces.

----------------------- New Test -----------------------
Paessler SNMP Tester 5.2.3 Computername: SCSGKC23MAAS02 Interface: 10.202.0.26
6/23/2017 3:46:31 PM (9 ms) : Device: 10.202.11.9
6/23/2017 3:46:31 PM (13 ms) : SNMP V2c
6/23/2017 3:46:31 PM (18 ms) : Scaninterfaces
Scanning Standard Interfaces...
6/23/2017 3:46:31 PM Start Scan
6/23/2017 3:46:31 PM Host: 10.202.11.9
6/23/2017 3:46:31 PM Community: mutala
6/23/2017 3:46:31 PM SNMP Version: V2
6/23/2017 3:46:31 PM Delay: 0
6/23/2017 3:46:31 PM Force32: No
6/23/2017 3:46:31 PM Single Get: No
6/23/2017 3:46:31 PM GET: 1.3.6.1.2.1.1.3.0
6/23/2017 3:46:31 PM Try 1
6/23/2017 3:46:31 PM DoRequest 0
6/23/2017 3:46:31 PM Init Session
6/23/2017 3:46:31 PM Host: 10.202.11.9:161
6/23/2017 3:46:31 PM Timeout: 2000000
6/23/2017 3:46:31 PM Version: 2
6/23/2017 3:46:31 PM Open Session
6/23/2017 3:46:31 PM Send Request
6/23/2017 3:46:31 PM Send Done
6/23/2017 3:46:31 PM Start 52663024
6/23/2017 3:46:31 PM Done 52663024 Status=0
6/23/2017 3:46:31 PM 0 ASN_COUNTER,ASN_TIMETICKS: 6085
6/23/2017 3:46:31 PM GET: 1.3.6.1.2.1.2.1.0
6/23/2017 3:46:31 PM Try 1
6/23/2017 3:46:31 PM DoRequest 0
6/23/2017 3:46:31 PM Init Session
6/23/2017 3:46:31 PM Host: 10.202.11.9:161
6/23/2017 3:46:31 PM Timeout: 2000000
6/23/2017 3:46:31 PM Version: 2
6/23/2017 3:46:31 PM Open Session
6/23/2017 3:46:31 PM Send Request
6/23/2017 3:46:31 PM Send Done
6/23/2017 3:46:31 PM Start 52663072
6/23/2017 3:46:31 PM Done 52663072 Status=0
6/23/2017 3:46:31 PM 0 SNMP_ERR_NOSUCHOBJECT
6/23/2017 3:46:31 PM Test 64bit
6/23/2017 3:46:31 PM GET NEXT: 1.3.6.1.2.1.31.1.1.1.6
6/23/2017 3:46:31 PM DoRequest 0
6/23/2017 3:46:31 PM Init Session
6/23/2017 3:46:31 PM Host: 10.202.11.9:161
6/23/2017 3:46:31 PM Timeout: 2000000
6/23/2017 3:46:31 PM Version: 2
6/23/2017 3:46:31 PM Open Session
6/23/2017 3:46:31 PM Send Request
6/23/2017 3:46:31 PM Send Done
6/23/2017 3:46:31 PM Start 52663072
6/23/2017 3:46:31 PM Done 52663072 Status=0
6/23/2017 3:46:31 PM 0 SNMP_ERR_ENDOFMIBVIEW
6/23/2017 3:46:31 PM 64bit NOT available
6/23/2017 3:46:31 PM GET NEXT: 1.3.6.1.2.1.2.2.1.2
6/23/2017 3:46:31 PM DoRequest 0
6/23/2017 3:46:31 PM Init Session
6/23/2017 3:46:31 PM Host: 10.202.11.9:161
6/23/2017 3:46:31 PM Timeout: 2000000
6/23/2017 3:46:31 PM Version: 2
6/23/2017 3:46:31 PM Open Session
6/23/2017 3:46:31 PM Send Request
6/23/2017 3:46:31 PM Send Done
6/23/2017 3:46:31 PM Start 52662952
6/23/2017 3:46:31 PM Done 52662952 Status=0
6/23/2017 3:46:31 PM 0 ASN_COUNTER,ASN_TIMETICKS: 1710370283
6/23/2017 3:46:31 PM Current: 1.3.6.1.2.1.25.1.1.0
6/23/2017 3:46:31 PM GET NEXT: 1.3.6.1.2.1.25.1.1.0
6/23/2017 3:46:31 PM DoRequest 0
6/23/2017 3:46:31 PM Init Session
6/23/2017 3:46:31 PM Host: 10.202.11.9:161
6/23/2017 3:46:31 PM Timeout: 2000000
6/23/2017 3:46:31 PM Version: 2
6/23/2017 3:46:31 PM Open Session
6/23/2017 3:46:31 PM Send Request
6/23/2017 3:46:31 PM Send Done
6/23/2017 3:46:31 PM Start 52663000
6/23/2017 3:46:31 PM Done 52663000 Status=0
6/23/2017 3:46:31 PM 0 SNMP_ERR_ENDOFMIBVIEW
6/23/2017 3:46:31 PM GetNext=9
Result: #O49

Found standard interfaces:
No standard interfaces found

error-#222 rhel7 snmpv2c

Created on Jun 23, 2017 8:12:36 AM by  rickyhair (0) 1

Last change on Jun 23, 2017 8:31:14 AM by  Sven Roggenhofer [Paessler Technical Support]



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Hello,

Thank you for your KB-post.

Could you please first make sure that SNMP is properly set on your target device?

Please have a look at these guides:

https://kb.paessler.com/en/topic/5353-monitoring-linux-problem-snmp-port-not-reachable http://dump.4network.eu/index.php/2013/03/19/347/

Created on Jun 23, 2017 2:00:44 PM by  Isidora Jeremic [Paessler Support]



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The issue was due to the default access restriction to the system tree information. The linux Administrator replaced the access with non-restriction.

We can now poll successfully.

Created on Jun 28, 2017 5:12:23 AM by  rickyhair (0) 1



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