Re: Node is reported with wrong IP (639 Views)
Reply
Occasional Contributor
sprovost_ortiva
Posts: 3
Registered: ‎10-18-2011
Message 1 of 4 (660 Views)

Node is reported with wrong IP

This is an odd one and for the life of me, I don't know how to solve it.

 

We have a linux machine (redhat) that has 5 interfaces:

eth0

eth1

eth2 = 10.16.122.31

eth3

eth4

eth5

bond0 (has eth0 and eth1) = 10.0.0.1

bond1 (has eth4 and eth5) = 10.0.32.1

 

When I add a node with HPOV NNM v7.50, I use 10.16.122.31 as an IP address. It then adds the node, but later on refers to it as '10.0.0.1'. When alarms are received, I can see that HPOV runs a whole bunch of GETNEXT requests to poll the device. However, if I right click on the node and select 'alarms' I get nothing besides:

system name changed (was 10.16.122.31) and the source is 10.0.0.1

 

If I change the filter (and add 10.16.122.31), then the alarms are shown in the tab. But I think HPOV disregards any alarm sent from that device. I tried to change the Preferred SNMP address, to no avail.

 

The agent is net-snmp 5.3.

 

Can you please help? I'm baffled. If I send a trap from the agent on a different app, the trap is received correctly and looks perfectly fine (coming from 10.16.122.31). Thanks!

Please use plain text.
Honored Contributor
DJ Hogeweg
Posts: 288
Registered: ‎11-22-2010
Message 2 of 4 (656 Views)

Re: Node is reported with wrong IP

[ Edited ]

Hi,

 

Yes NNM 7.5x can be rather awkward in this respect. In your case it chooses the lowest IP address as preferred SNMP management address. A netmon lrf option (-k adjustNodeSnmpAddr=false) was added in NNM 7.53 that should stop netmon from switching preferred management addresses.

 

But you can also try the following: 

  • Temporarily unmanage all the interfaces for the node except the interface that is to be set as the SNMP Address.
  • Issue a demand poll for the node.
  • Check the object properties of the node for SNMP address.
  • Re-manage the rest of the node's interfaces.

 

Regards,

 

DJ

Please use plain text.
Occasional Contributor
sprovost_ortiva
Posts: 3
Registered: ‎10-18-2011
Message 3 of 4 (648 Views)

Re: Node is reported with wrong IP

Thanks a lot! How do you issue a repoll? Thanks.

Please use plain text.
Honored Contributor
DJ Hogeweg
Posts: 288
Registered: ‎11-22-2010
Message 4 of 4 (639 Views)

Re: Node is reported with wrong IP

Hi,

 

CLI command nmdemandpoll for netmon discovery poll. Regards,

 

DJ

Please use plain text.
The opinions expressed above are the personal opinions of the authors, not of HP. By using this site, you accept the Terms of Use and Rules of Participation