HP Insight Management Agents for Linux - Installation Guide and Release Notes - HP Integrity Servers with Linux (March 2010)

5 Troubleshooting
This section provides instructions for troubleshooting basic agent installation and configuration
issues. The following assumptions have been made to develop this information:
□ The agents are not responding to inquiries from HP SIM.
□ You are a Linux system administrator with root privilege.
□ No errors were issued during agent installation and initial configuration.
□ The net-snmp-utils RPM, part of the agent installation tar archive, was installed on the
managed system.
□ Commands and options are capitalized correctly.
□ You have access to several terminal windows and you have multiple command lines available.
□ You understand that shutting down the firewall to troubleshoot creates a security breach,
and you assume all risks inherent with that procedure.
NOTE: HP views all SNMP traffic as unsecure. Therefore, it is assumed that SNMP traffic
is on a private, secure network.
HP Insight Management Agents Network Ports
The following table provides a list of network ports used by the HP Insight Management Agents.
All the ports are internal unless otherwise indicated.
DescriptionProtocolPort
SNMP traffic (snmpget/snmpset/snmpwalk) is transferred using this port. It is an
external port.
udp161
SNMP trap information is sent here. It is an external port.udp162
Though HP Insight Management Agents uses AgentX, snmpd still listens on this port.
tcp, udp199
HPIMASNMP-Communication to hpimaX by peer daemons.
udp25375
HPIMASVRudp25376
HPIMASTORudp25378
HPIMAFDTNudp25385
HPIMANIC-Communication to peer daemons from hpimaX.
udp25393
Important Information About Firewalls and Troubleshooting
Some Linux distributions automatically configure firewall software during installation, usually
using iptables, which is the standard Linux kernel’s method of providing firewall support.
Such a firewall configuration may block remote management stations from contacting the SNMP
daemon, making it difficult to troubleshoot HP Insight Management Agents.
To execute the troubleshooting steps in this document, you must shut down firewall software
on the managed server using the following steps. The information in the “Advanced
Troubleshooting Steps” (page 23) section applies only when you have the standard Linux firewall
capabilities of iptables. Consult your network administrator to determine if this situation
exists.
HP Insight Management Agents Network Ports 21