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1. Let AgenPro generate the MIB object stub and agent main code as described in: Generate code for SNMP4J-Agent with AgenPro.
2. Edit the Agent.java file (or modify the AgenPro template) as follows:

   1. Define the context values you want to support in the agent:

      Code Block
      language java
      //|:AgenPro|=members OctetString context1 = new OctetString("ctx1"); OctetString context2 = new OctetString("ctx2"); //|AgenPro:|

   2. Add the contexts to the MOServer instance(s) you use in the agent:

      Code Block
      language java
      public static void main(String[] args) { //|:AgenPro|=main server.addContext(context1); server.addContext(context2); defaultMain(args); //|AgenPro:| }

   3. Register your MIB object instances for each context separately (as explained above in the Background section):

      Code Block
      language java
      protected void registerMIBs() { //|:AgenPro|=registerBefore try { // Create a new instance per generated MIB module (you can use different MOFactory instances per context if needed): Snmp4jAgentTutorialMib tutorialMibCtx1 = new Snmp4jAgentTutorialMib(getFactory()); tutorialMibCtx1.registerMOs(server, context1); Snmp4jAgentTutorialMib tutorialMibCtx2 = new Snmp4jAgentTutorialMib(getFactory()); tutorialMibCtx2.registerMOs(server, context2); } catch (DuplicateRegistrationException drex) { logger.error("Duplicate registration: "+drex.getMessage()+"."+ " MIB object registration may be incomplete!", drex); } //|AgenPro:| .. }

3. Configure the SNMPv3 View-based Access Control Model (VACM) MIB to allow SNMPv3 (and/or SNMPv1/2vc) users to access the new non-default contexts:

   Code Block
   language java
   public void run() { // initialize agent before registering our own modules agent.initialize(); // protected voidthis requires sysUpTime to be available. registerMIBs(); // add proxy forwarder { .. agent.setupProxyForwarder(); // now continue agent setup and launch it. agent.run(); //|:AgenPro|=registerAfterrun VacmMIB vacm = agent.getAgentConfigManager().getVacmMIB(); vacm.addAccess(new OctetString("v3group"), context1, SecurityModel.SECURITY_MODEL_ANY, SecurityLevel.AUTH_PRIV, MutableVACM.VACM_MATCH_EXACT, new OctetString("fullReadViewunrestrictedReadView"), new OctetString("fullWriteViewunrestrictedWriteView"), new OctetString("fullNotifyViewunrestrictedNotifyView"), StorageType.nonVolatile); vacm.addAccess(new OctetString("v3group"), context2, SecurityModel.SECURITY_MODEL_ANY, SecurityLevel.AUTH_PRIV, MutableVACM.VACM_MATCH_EXACT, new OctetString("fullReadViewunrestrictedReadView"), new OctetString("fullWriteViewunrestrictedWriteView"), new OctetString("fullNotifyViewunrestrictedNotifyView"), StorageType.nonVolatile); .. //|AgenPro:| }

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