Essential SNMP

Preface Audience for This Book Organization What's New in This Edition Example Programs Using Code Examples Conventions Used in This Book Comments and Questions Safari® Enabled Acknowledgments for the Second Edition Acknowledgments for the First Edition Chapter 1. Introduction to SNMP and Network Management Section 1.1. What Is SNMP? Section 1.2. The Concept of Network Management Section 1.3. Applying the Concepts of Network Management Section 1.4. Change Management Section 1.5. Getting More Information Chapter 2. SNMPv1 and SNMPv2 Section 2.1. SNMP and UDP Section 2.2. SNMP Communities Section 2.3. The Structure of Management Information Section 2.4. Extensions to the SMI in Version 2 Section 2.5. A Closer Look at MIB-II Section 2.6. SNMP Operations Section 2.7. Host Management Revisited Section 2.8. Remote Monitoring Revisited Section 2.9. Reverse Engineering SNMP Chapter 3. SNMPv3 Section 3.1. Changes in SNMPv3 Section 3.2. USM Section 3.3. VACM Section 3.4. SNMPv3 in the Real World Chapter 4. NMS Architectures Section 4.1. Hardware Considerations Section 4.2. NMS Architectures Section 4.3. A Look Ahead Chapter 5. Configuring Your NMS Section 5.1. HP's OpenView Network Node Manager Section 5.2. Castle Rock's SNMPc Enterprise Edition Chapter 6. Configuring SNMP Agents Section 6.1. Parameter Settings Section 6.2. Security Concerns Section 6.3. Agent Configuration Walkthroughs Chapter 7. Polling and Setting Section 7.1. Retrieving a Single MIB Value Section 7.2. Retrieving Multiple MIB Values Section 7.3. Setting a MIB Value Section 7.4. Error Responses Chapter 8. Polling and Thresholds Section 8.1. Internal Polling Section 8.2. External Polling Chapter 9. Traps Section 9.1. Understanding Traps Section 9.2. Receiving Traps Section 9.3. Sending Traps Chapter 10. Extensible SNMP Agents Section 10.1. Net-SNMP Section 10.2. SystemEDGE Section 10.3. OpenView's Extensible Agent Chapter 11. Adapting SNMP to Fit Your Environment Section 11.1. General Trap-Generation Program Section 11.2. Who's Logging into My Machine? (I-Am-In) Section 11.3. Throw Core Section 11.4. Veritas Disk Check Section 11.5. Disk-Space Checker Section 11.6. Port Monitor Section 11.7. Service Monitoring Section 11.8. Pinging with Cisco Section 11.9. Simple SNMP Agent Section 11.10. Switch Port Control Section 11.11. Wireless Networking Section 11.12. SNMP: The Object-Oriented Way Section 11.13. Final Words Chapter 12. MRTG Section 12.1. Using MRTG Section 12.2. Viewing Graphs Section 12.3. Graphing Other Objects Section 12.4. Other Data-Gathering Applications Section 12.5. Pitfalls Section 12.6. Getting Help Chapter 13. RRDtool and Cricket Section 13.1. RRDtool Section 13.2. Cricket Chapter 14. Java and SNMP Section 14.1. SNMP4J Section 14.2. SNMP getnext Section 14.3. SNMP set Section 14.4. Sending Traps and Informs Section 14.5. Receiving Traps and Informs Section 14.6. Resources Appendix A. Using Input and Output Octets Appendix B. More on OpenView's NNM Section B.1. Using External Data Section B.2. Adding a Menu to NNM Section B.3. Profiles for Different Users Section B.4. Using NNM for Communications Appendix C. Net-SNMP Tools Section C.1. Net-SNMP and MIB Files Section C.2. Common Command-Line Arguments Section C.3. Net-SNMP Command-Line Tools Appendix D. SNMP RFCs Section D.1. SMIv1 Data Definition Language Section D.2. SMIv2 Data Definition Language Section D.3. SNMPv3 Protocol Section D.4. SNMP Agent Extensibility Section D.5. SMIv1 MIB Modules Section D.6. SMIv2 MIB Modules Section D.7. IANA-Maintained MIB Modules Section D.8. Related Documents Appendix E. SNMP Support for Perl Section E.1. SNMP_Util Section E.2. Net-SNMP Appendix F. Network Management Software Section F.1. SNMP Agents Section F.2. NMS Suites Section F.3. Element Managers (Vendor-Specific Management) Section F.4. Trend Analysis Section F.5. Supporting Software Appendix G. Open Source Monitoring Software Section G-1. Big Brother Section G-2. Nagios Section G-3. JFFNMS Section G-4. OpenNMS Section G-5. NINO Appendix H. Network Troubleshooting Primer Section H-1. ping Section H-2. ipconfig and ifconfig Section H-3. arp Section H-4. netstat Section H-5. traceroute and tracert Section H-6. nslookup and dig Section H-7. whois Section H-8. Ethereal About the Authors Colophon Index the Concepts of Network Management Section 1.4. Change Management Section 1.5. Getting More Information Chapter 2. SNMPv1 and SNMPv2 Section 2.1. SNMP and UDP Section 2.2. SNMP Communities Section 2.3. The Structure of Management Information Section 2.4. Extensions to the SMI in Version 2 Section 2.5. A Closer Look at MIB-II Section 2.6. SNMP Operations Section 2.7. Host Management Revisited Section 2.8. Remote Monitoring Revisited Section 2.9. Reverse Engineering SNMP Chapter 3. SNMPv3 Section 3.1. Changes in SNMPv3 Section 3.2. USM Section 3.3. VACM Section 3.4. SNMPv3 in the Real World Chapter 4. NMS Architectures Section 4.1. Hardware Considerations Section 4.2. NMS Architectures Section 4.3. A Look Ahead Chapter 5. Configuring Your NMS Section 5.1. HP's OpenView Network Node Manager Section 5.2. Castle Rock's SNMPc Enterprise Edition Chapter 6. Configuring SNMP Agents Section 6.1. Parameter Settings Section 6.2. Security Concerns Section 6.3. Agent Configuration Walkthroughs Chapter 7. Polling and Setting Section 7.1. Retrieving a Single MIB Value Section 7.2. Retrieving Multiple MIB Values Section 7.3. Setting a MIB Value Section 7.4. Error Responses Chapter 8. Polling and Thresholds Section 8.1. Internal Polling Section 8.2. External Polling Chapter 9. Traps Section 9.1. Understanding Traps Section 9.2. Receiving Traps Section 9.3. Sending Traps Chapter 10. Extensible SNMP Agents Section 10.1. Net-SNMP Section 10.2. SystemEDGE Section 10.3. OpenView's Extensible Agent Chapter 11. Adapting SNMP to Fit Your Environment Section 11.1. General Trap-Generation Program Section 11.2. Who's Logging into My Machine? (I-Am-In) Section 11.3. Throw Core Section 11.4. Veritas Disk Check Section 11.5. Disk-Space Checker Section 11.6. Port Monitor Section 11.7. Service Monitoring Section 11.8. Pinging with Cisco Section 11.9. Simple SNMP Agent Section 11.10. Switch Port Control Section 11.11. Wireless Networking Section 11.12. SNMP: The Object-Oriented Way Section 11.13. Final Words Chapter 12. MRTG Section 12.1. Using MRTG Section 12.2. Viewing Graphs Section 12.3. Graphing Other Objects Section 12.4. Other Data-Gathering Applications Section 12.5. Pitfalls Section 12.6. Getting Help Chapter 13. RRDtool and Cricket Section 13.1. RRDtool Section 13.2. Cricket Chapter 14. Java and SNMP Section 14.1. SNMP4J Section 14.2. SNMP getnext Section 14.3. SNMP set Section 14.4. Sending Traps and Informs Section 14.5. Receiving Traps and Informs Section 14.6. Resources Appendix A. Using Input and Output Octets Appendix B. More on OpenView's NNM Section B.1. Using External Data Section B.2. Adding a Menu to NNM Section B.3. Profiles for Different Users Section B.4. Using NNM for Communications Appendix C. Net-SNMP Tools Section C.1. Net-SNMP and MIB Files Section C.2. Common Command-Line Arguments Section C.3. Net-SNMP Command-Line Tools Appendix D. SNMP RFCs Section D.1. SMIv1 Data Definition Language Section D.2. SMIv2 Data Definition Language Section D.3. SNMPv3 Protocol Section D.4. SNMP Agent Extensibility Section D.5. SMIv1 MIB Modules Section D.6. SMIv2 MIB Modules Section D.7. IANA-Maintained MIB Modules Section D.8. Related Documents Appendix E. SNMP Support for Perl Section E.1. SNMP_Util Section E.2. Net-SNMP Appendix F. Network Management Software Section F.1. SNMP Agents Section F.2. NMS Suites Section F.3. Element Managers (Vendor-Specific Management) Section F.4. Trend Analysis Section F.5. Supporting Software Appendix G. Open Source Monitoring Software Section G-1. Big Brother Section G-2. Nagios Section G-3. JFFNMS Section G-4. OpenNMS Section G-5. NINO Appendix H. Network Troubleshooting Primer Section H-1. ping Section H-2. ipconfig and ifconfig Section H-3. arp Section H-4. netstat Section H-5. traceroute and tracert Section H-6. nslookup and dig Section H-7. whois Section H-8. Ethereal About the Authors Colophon Index