1. 12/6/2004Jeremie Reese SNMP 1 Simple Network Management Protocol (SNMP) - Agents Jeramie Reese

2. 12/6/2004 Jeremie Reese SNMP 2 Agenda SNMP Components Architecture Creating a SNMP Agent References

3. 12/6/2004 Jeremie Reese SNMP 3 SNMP Components Three key components – Management Information Base (MIB) – SNMP Agent – Network Management System (NMS)

4. 12/6/2004 Jeremie Reese SNMP 4 SNMP Architecture SNMP Architecture: An SNMP message passes through the protocol layers at both the manager and agent. Each layer does a specific communication task. 4

5. 12/6/2004 Jeremie Reese SNMP 5 Layered Communication Network Interface IP UDP Application (SNMP) Network Interface IP UDP Application (SNMP)

6. 12/6/2004 Jeremie Reese SNMP 6 Creating a SNMP Agent Required Components – MIB Definition File – C header file – C Implementation file SNMP Development Tools

7. 12/6/2004 Jeremie Reese SNMP 7 Management Information Base (MIB) file Object Identifier (OID) vs. Naming structure The first four numbers of the OBJECT IDENTIFIER are always 1.3.6.1, where: 1: Intern. Stds Org (ISO) 3: Org. recognized by ISO 6: Dept. of Defense (DoD) 1: Internet community Internet Assigned Number Authority (http://www.iana.org) The branch of the MIB object identifier tree. 5

8. 12/6/2004 Jeremie Reese SNMP 8 SNMP Development Tools mib2c – Generates template code for the agent – C header file – C implementation file Additional steps after template code is generated – Implement GET and SET request functions

9. 12/6/2004 Jeremie Reese SNMP 9 Lessons Learned Simple Network Management Protocol – Simple? Utilize predefined MIB files Understand the limitations – Security concerns – Compatibility

10. 12/6/2004 Jeremie Reese SNMP 10 Bibliography 1. Blank-Edelman, N. David. Perl for System Administration. Cambridege: O’Reilly, 2000. (2) 2. Cisco Systems, Inc., “Simple Network Management Protocol”, 20 February 2002, (22 November 2004). (3)http://www.cisco.com/univercd/cc/td/doc/cisintwk/ito_doc/snmp.htm#xt ocid1 3. Cohen, Yoram, “SNMP - Simple Network Management Protocol”, 01 April 1995, (22 November 2004). (6)http://www2.rad.com/networks/1995/snmp/snmp.htm 4. DenHartog, Marshall, “SNMP Tutorial: The Fast Track Introduction to SNMP Alarm Monitoring”. DPS Telecom. 27 September 2004. (5) 5. DPS Telecom, “SNMP Tutorial Series: 5 Quick Steps to Understanding SNMP and its Role in Network Alarm Monitoring”, 13 February 2003, (22 November 2004). (1)http://www.dpstele.com/layers/l2/snmp_tutorials.html

11. 12/6/2004 Jeremie Reese SNMP 11 Bibliography (cont.) 6. Kozierok, Charles M., “The TCP/IP Guide”, 20 June 2004, (22 November 2004). http://www.tcpipguide.com/free/t_SNMPVersion1SNMPv1MessageFormat.htm 7. SkillSoft Press, “Using SNMP to Manage Complex Networks”, 03 May 2002, (22 November 2004).http://www.books24x7.com/book/id_4502/toc.asp 8. Steinke, Steve, “Simple Network Management Protocol - SNMP: The most widely adopted standard provides a way for devices and consoles to communicate”, 01 February 1997, (22 November 2004).http://www.networkmagazine.com/article/NMG20000724S0050 9. Window Security, “Network Management Protocol Insecurity: SNMPv1”, 16 October 2002, (22 November 2004). http://www.secinf.net/misc/Network_Management_Protocol_Insecurity_SNMPv1 _.html 10. Lake, Craig. Simple Network Management Protocol (SNMP) [online]. Available WWW (1996).http://www.sei.cmu.edu/str/docs/SNMP.html