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Occasional Contributor I
Posts: 6
Registered: ‎07-19-2013

Aruba IAP 105 Virtual Controller Port 161 not open

Hello Everyone-

 

I am trying to get some stats in our nagios instance from our virtual controller in our IAP 105 setup. 

 

I tried setting up SNMP in "Settings" and chose port 161 and clicked "yes" for inform. I also added our SNMP community name as well. 

 

But when I run NMAP and scan the virtual controller IP, port 161 is in fact not open. (nmap -T4 -F <VC IP>)

 

I looked at the logs and saw this: "Reached the limit on Inform Notification queue for <Nagios IP>:161"

 

Am I missing something? Any help would be appreciated. FWIW here is the Nagios command I'm running:

 

 /usr/lib/nagios/plugins/check_snmp -H <Virtual Controller IP> -c tgblue -o <OID>

External command error: Timeout: No Response from 192.168.0.1:161.

Frequent Contributor I
Posts: 97
Registered: ‎04-13-2009

Re: Aruba IAP 105 Virtual Controller Port 161 not open

Hi, 

Please verify basic connectivity. I just enabled SNMP by adding readonly v1/2 community in Instant and run snmpwalk: 

 

pi@raspbmc:~$ snmpwalk -v 2c -c readonly 192.168.1.111
iso.3.6.1.2.1.1.1.0 = STRING: "ArubaOS Version 6.2.1.0-3.3.0.2"
[...]

 

And configuration: 

 

[...]

virtual-controller-ip 192.168.1.111

[...]

snmp-server community !*****
[...]


Works perfectly. 

Regards, 

 

Marek Krauze, CWNE# 174, ACMX #295, ACDX #356
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Occasional Contributor I
Posts: 6
Registered: ‎07-19-2013

Re: Aruba IAP 105 Virtual Controller Port 161 not open

I appreciate the thought, but yes, the IAP 105 cluster has network connectivity :) 

 

And as I said before, I have added the community string and am able to do an snmpwalk and get results from our monitoring server. However, when I scan the virtual controller using the nmap command, port 161 is not open. 

 

I'm trying to use the check_snmp Nagios plugin to get some stats and it's returning this error:

 

/usr/lib/nagios/plugins/check_snmp -H 192.168.0.1 -c tgblue -o 1.3.6.1.4.1.14823.2.3.3.1.2.1.1.7
External command error: Timeout: No Response from 192.168.0.1:161.

Frequent Contributor I
Posts: 97
Registered: ‎04-13-2009

Re: Aruba IAP 105 Virtual Controller Port 161 not open

Are you sure that there is no such firewall between IAP and you SNMP host? It looks like dropped traffic. BTW, what is the firmware? I did my test on 3.3.0.x

Regards, 

Marek Krauze, CWNE# 174, ACMX #295, ACDX #356
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Guru Elite
Posts: 21,561
Registered: ‎03-29-2007

Re: Aruba IAP 105 Virtual Controller Port 161 not open


tyosick@topgunhq.com wrote:

I appreciate the thought, but yes, the IAP 105 cluster has network connectivity :) 

 

And as I said before, I have added the community string and am able to do an snmpwalk and get results from our monitoring server. However, when I scan the virtual controller using the nmap command, port 161 is not open. 

 

I'm trying to use the check_snmp Nagios plugin to get some stats and it's returning this error:

 

/usr/lib/nagios/plugins/c -H 192.168.0.1 -c tgblue -o 1.3.6.1.4.1.14823.2.3.3.1.2.1.1.7
External command error: Timeout: No Response from 192.168.0.1:161.


tyosick@topgunhq.com,

 

Nmap port scanning of UDP ports is unreliable unless you use a protocol aware version of NMAP.  This is not a problem with the IAP 105, but with Nmap.  Please direct your query to NMAP or Naigos unless you cannot get snmp data from the IAP in with your NMS.

 



Colin Joseph
Aruba Customer Engineering

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Occasional Contributor I
Posts: 6
Registered: ‎07-19-2013

Re: Aruba IAP 105 Virtual Controller Port 161 not open

 

It's possible that the check_snmp plugin only works for TCP ports and not UDP ports. 

 

I guess my next question would be how to monitor the IAP's from within Nagios... I'm just needing a few stats like bandwith usage, CPU usage...etc. Nothing crazy. Any thoughts on integrating the IAP 105 cluster with Nagios?

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