Trap with Source Node 0.0.0.0 address

  • Document ID:KM00901808
  • Creation Date:09-May-2014
  • Modified Date:06-Dec-2016
    • Micro Focus Products:
      network node manager 9.20

Summary

There are some behavior when traps arrivied to NNMi (Network Node Manager) with the address 0.0.0.0 this documents explains what NNMi administrators may procced.

Question

There are some behaviors when traps arrived to NNMi with the address 0.0.0.0 this documents explains what NNMi administrators may procced.

 

 

Answer

1.If the trap is coming as a v1 trap you can use the following property so that NNMi uses the UDP header IP instead of the agent_addr SNMP header field (I am assuming agent_addr is set to 0.0.0.0 by the SNMP agent when sending the trap). This is a global parameter that will affect all traps.
 
# Use the IP address in an SNMPv1 trap's UDP header instead of the contents
# of the SNMPv1 trap PDU's agent_addr field. This option is useful in
# Duplicate IP address environments that use NAT (Network Address Translation).
# This flag ignores the value of the agent_addr field from the SNMPv1 PDU and
# instead relies on the UDP header to determine the source of the trap. This
# option will not allow an SNMP agent to proxy for another device because the
# agent_addr value is not utilized.
# (default = false)
#!com.hp.nnm.trapd.useUdpHeaderIpAddress=false

You can find this information in the nms-jboss.properties file.

UNIX:


 /var/opt/OV/shared/nnm/conf/props/nms-jboss.properties
 
Windows:
 
ProgramData\HP\HP BTO Software\shared\nnm\conf\prop\nms-jboss.properties
 
2.If the trap is coming as v2 then probably the SNMP agent is setting the following varbind to 0.0.0.0 snmpV2TrapAddress .1.3.6.1.6.3.18.1.3.0  NMMi administrator should contact the Vendor.