Discover_SNMP Knowledge Script fails for SNMP V2 devices. (NETIQKB51740)

  • 7751740
  • 02-Feb-2007
  • 27-Jan-2011


NetIQ AppManager 6.x
NetIQ AppManager 7.0.x
Discovery_SNMP Knowledge Script


Cannot discover Simple Network Management Protocol version 2.
SNMP discovery times out.


Enable V1 on the SNMP agent during the discovery process. AppManager will recognize the agent is at V2 and record that in the device details. You can then disable V1.

After discovery, all Knowledge Scripts will use V2 and the Managed Object will operate normally.


SNMP V1 is disabled on the network devices. While trying to discover the devices, AppManager does not know what SNMP version the device supports. AppManager attempts the lowest common denominator for SNMP Discovery, which is V1.

AppManager uses a request snmpEngineID.0 with a V1 GET, which should only exist in a V2 SNMP agent.  Discovery records the device as supporting V1 if the requesting snmpEngineID.0 results in an error. If the GET request succeeds, AppManager records the device as supporting V2. However, in some environments, the device does not respond to the initial V1 request for snmpEngineID.0, so discovery times out and fails.

Additional Information

Formerly known as NETIQKB51740