Re: Node Sub-Agent on Windows

 UPDATE
Turns out that I am able to query from the cmd shell snmpwalk, but not from Manage Engine GUI.  So leads me to suspect it is ok after all.

Thanks,


    On Wednesday, February 9, 2022, 12:45:34 p.m. EST, Ian C via Net-snmp-coders <[email protected]> wrote:  
 
 
I'm using the node net-snmp package  to create a simple subagent but I cannot query its only table provider (Error in packet... No such variable name in MIB).  I have installed net-snmp and registered it, I am able to  query simple things such as uptime:
C:\usr\etc\snmp>snmpwalk -v1 -c public 127.0.0.1  .1.3.6.1.2.1.1.3
DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (306196) 0:51:01.96

So, at least I know the snmpd is running and responding.
My snmpd.conf:rwcommunity  public  
master agentx
agentXSocket tcp:localhost:705load  12 12 12
Any thoughts would be greatly appreciated.
thanksIan in Ottawa


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net-snmp

JavaScript implementation of the Simple Network Management Protocol (SNMP). Latest version: 3.5.8, last publishe...
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Test table query:C:\usr\etc\snmp>snmpget -v1 -c public 127.0.0.1 1.3.6.1.4.1.8072.9999.9999.2
Error in packet
Reason: (noSuchName) There is no such variable name in this MIB.
Failed object: NET-SNMP-MIB::netSnmpPlaypen.2



Js subagent:let snmp = require("net-snmp");

export class SNMPServer {  private static instance: SNMPServer;  subagent: null | any  mib: null | any  private constructor() {    this.subagent = snmp.createSubagent(suboptions);  }  public static getInstance(): SNMPServer {    if (!SNMPServer.instance) {        SNMPServer.instance = new SNMPServer();    }    return SNMPServer.instance;  }
  public openSubAgent() {    this.subagent.open( this.openCallback );  }

  openCallback = ( error: any, data: any ) => {    if ( error ) {        console.error('subagent.open() ERROR:' +error);    } else {        console.log('subagent.open() OK...'+data)        this.subagent.registerProvider (myTableProvider, registerProviderCallback);        this.mib = this.subagent.getMib();        if (this.mib != null) {            this.mib.addTableRow ("smallIfTable", [1, "IAN", 12]);            console.log("SNMP Server: SubAgent-MIB Invoked");        } else {            console.error ("Subagent Get MIB failure");        }    }  }
  public closeSubAgent() {    this.subagent.unregisterProvider(myTableProvider, ()=>{} );    this.subagent.close (() => {});  }}
// Default suboptionsvar suboptions = {    debug: true,    master: "localhost",    masterPort: 705,    timeout: 0,    description: "Node net-snmp AgentX sub-agent"};
var registerProviderCallback = function (error: any, data: any) {    if ( error ) {        console.error ('CREATE SUBAGENT ERROR '+error);    } else {        console.log ('OK SNMP CREATE SUBAGENT '+JSON.stringify(data, null, 2));    }};
var myTableProvider = {    name: "smallIfTable",    type: snmp.MibProviderType.Table,    oid: "1.3.6.1.4.1.8072.9999.9999.2",    tableColumns: [        {            number: 1,            name: "CampField1",            type: snmp.ObjectType.Integer        },        {            number: 2,            name: "CampField2",            type: snmp.ObjectType.OctetString        },        {            number: 3,            name: "CampField3",            type: snmp.ObjectType.Integer        }    ],    tableIndex: [        {            columnName: "CampField1"        }    ],    handler: function (mibRequest: any) {        console.log('MibRequest!')        // e.g. can update the table before responding to the request here        mibRequest.done();    }};



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