SNMP Fetch

Send an SNMP request to an SNMP agent, or send an ICMP ping to an IP. The panel is composed of an upper portion with a fixed set of settings, and a variable length lower portion enumerating a list of object | suffix | values.

SNMP Fetch controls

• Get
  Request the agent return the current value of a list of objects
• Set
  Request a list of objects be written with new values
• Next
  SNMP fetch's come in 2 flavors: Get and Next. While Get requests an object by OID, Next requests the next object following the OID in the request. The Next request instructs the agent return the current value of the object that sequentially follows each OID in the list.
• SNMP Walk
  SNMP Walking is the process of repeatedly sending Next requests for the object last returned from an agent. The program always remembers the last OID from the last parsed message. When SNMP Walk is selected, a Next request is sent to the last received OID, thus SNMP Walking a single object. When SNMP Walk is selected, the object list on the SNMP Fetch panel is not used in the request.
• Bulk Get
  Bulk gets are Next type requests and are only for agents that support SNMP version v2c. The Bulk Get request can request an agent return the value of the objects that immediately follow list of non-repeater objects, followed by max-repetitions of objects comprising the remainder of a list. If the non-repeaters parameter matches the length of the list, it simply returns the same as a Next request. When the non-repeaters parameter is zero it returns max-repetitions sequential items for each item in the list.
• SNMP Bulk Walk
  Sends a Bulk Get request containing the single last object received. When SNMP Bulk Walk is selected, the object list on the SNMP Fetch panel is not used in the request.
• Clear
  Clears the object | suffix | value list, and clears the check marks from the removed objects in the MIB Table and MIB Tree panels.
• Ping
  Send an ICMP ping request to the destination IP

SNMP Fetch settings

• Target IP - Defines the IP destination of any request
• Timeout - Defines how many seconds the program should wait for reply
• SNMP Ver - For all SNMP requests, identify whether the request is v1, v2, or v2c
• Community String - For all SNMP requests, must match the community string of the targeted agent
• non-Repeaters - Used on BULK GET requests to enumerate the number of leading objects that are not to be repeated
• max-Repetitions - Used on BULK GET requests, that applies to objects that follow the number of non-Repeaters, and defines how many sequential objects of each that should be returned
• object | suffix | value list
  Object - Using the MIB Table, MIB Tree, or script as controls, add objects, roots, or hierarchical node names to the list.
  Suffix - When an object is added to the list, a default suffix of '0' is added. When a node names or root has been added to the list, the remainder of an OID may be added to the suffix field.
  Value - The value field is always preset to NULL, but when performing set requests replace the value to be set here.