Essential SNMP

by Mauro, Douglas R.

• ISBN13: 9780596008406
• ISBN10: 0596008406
• eBook ISBN(s): 9780596008406
• Edition: 2nd
• Format: Paperback
• Copyright: 2005-10-01
• Publisher: Oreilly & Associates Inc
• More Book Details

Summary

This practical guide introduces the Simple Network Management Protocol (SNMP) for experienced network and system administrators. Starting with the basics of SNMP and how it works, "Essential SNMP" supplies the technical background for using it effectively. The book covers OIDs, MIBs, community strings, traps, and other technical elements. But the main focus is on practical network administration. Readers will come away with ideas for writing scripts to help them manage their networks, create managed objects, and extend the operation of SNMP agents. This update features expanded information on version 2 of the protocol.

Author Biography

Douglas Mauro received a bachelor's degree at the University of Albany, New York, and worked as a system administrator for several years before becoming a project engineer with Sun Microsystems, Inc. In addition to his consulting duties with Sun, he authors their internal OneStop Sun Management Center page and has published several InfoDocs with them.

Kevin J. Schmidt currently lives in Lilburn, Georgia. He is a senior software developer at SecureWorks, Inc. (http://www.secureworks.com), where he is lead developer for the comapny's SIM platform. He also leading the development of the company's log analysis service line. Prior to SecureWorks, Kevin was a senior Java/C developer at Reflex Security (http://www.reflexsecurity.com). And prior to Reflex, Kevin spent four years at GuardedNet, Inc. (http://www.micromuse.com/sols/dom_man/sec_man.html) as a senior software developer and team lead.

Kevin's experience with network management began in 1995 while working at a regional ISP in Pensacola, Florida. In 1996 he moved to Atlanta, Georgia to work for MindSpring Enterprises (now known as Earthlink), a national ISP. He spent four years in network management and was the senior network management architect for Earthlink. He left Earthlink to work at Netrail, a tier-1 Internet backbone provider. While at Netrail, Kevin was in charge of the company's network management architecture.

Table of Contents

Preface	ix
Introduction to SNMP and Network Management	1	(18)
What Is SNMP?	1	(6)
The Concept of Network Management	7	(2)
Applying the Concepts of Network Management	9	(2)
Change Management	11	(6)
Getting More Information	17	(2)
SNMPv1 and SNMPv2	19	(54)
SNMP and UDP	19	(2)
SNMP Communities	21	(2)
The Structure of Management Information	23	(9)
Extensions to the SMI in Version 2	32	(3)
A Closer Look at MIB-II	35	(2)
SNMP Operations	37	(32)
Host Management Revisited	69	(1)
Remote Monitoring Revisited	70	(1)
Reverse Engineering SNMP	71	(2)
SNMPv3	73	(12)
Changes in SNMPv3	73	(4)
USM	77	(4)
VACM	81	(2)
SNMPv3 in the Real World	83	(2)
NMS Architectures	85	(8)
Hardware Considerations	85	(2)
NMS Architectures	87	(4)
A Look Ahead	91	(2)
Configuring Your NMS	93	(21)
HP's OpenView Network Node Manager	93	(12)
Castle Rock's SNMPc Enterprise Edition	105	(9)
Configuring SNMP Agents	114	(27)
Parameter Settings	114	(2)
Security Concerns	116	(1)
Agent Configuration Walkthroughs	117	(24)
Polling and Setting	141	(13)
Retrieving a Single MIB Value	141	(6)
Retrieving Multiple MIB Values	147	(3)
Setting a MIB Value	150	(3)
Error Responses	153	(1)
Polling and Thresholds	154	(28)
Internal Polling	156	(6)
External Polling	162	(20)
Traps	182	(32)
Understanding Traps	182	(1)
Receiving Traps	183	(14)
Sending Traps	197	(17)
Extensible SNMP Agents	214	(21)
Net-SNMP	215	(5)
SystemEDGE	220	(4)
Open View's Extensible Agent	224	(11)
Adapting SNMP to Fit Your Environment	235	(66)
General Trap-Generation Program	235	(1)
Who's Logging into My Machine? (I-Am-In)	236	(2)
Throw Core	238	(4)
Veritas Disk Check	242	(4)
Disk-Space Checker	246	(11)
Port Monitor	257	(3)
Service Monitoring	260	(13)
Pinging with Cisco	273	(5)
Simple SNMP Agent	278	(3)
Switch Port Control	281	(6)
Wireless Networking	287	(3)
SNMP: The Object-Oriented Way	290	(10)
Final Words	300	(1)
MRTG	301	(15)
Using MRTG	302	(4)
Viewing Graphs	306	(2)
Graphing Other Objects	308	(4)
Other Data-Gathering Applications	312	(2)
Pitfalls	314	(1)
Getting Help	315	(1)
RRDtool and Cricket	316	(17)
RRDtool	316	(1)
Cricket	317	(16)
Java and SNMP	333	(16)
SNMP4J	333	(1)
SNMP getnext	334	(7)
SNMP set	341	(2)
Sending Traps and Informs	343	(1)
Receiving Traps and Informs	344	(4)
Resources	348	(1)
Using Input and Output Octets	349	(8)
More on OpenView's NNM	357	(9)
Net-SNMP Tools	366	(11)
SNMP RFCs	377	(7)
SNMP Support for Perl	384	(11)
Network Management Software	395	(5)
Open Source Monitoring Software	400	(13)
Network Troubleshooting Primer	413	(12)
Index	425