An integrated collection of tools for network monitoring and control. Single operator interface Minimal amount of separate equipment. Software and network communications capability built into the existing equipment SNMP key elements: Management station Managament agent Management information base Network Management protocol Get, Set and Notify | Chapter 8 Network Management Security Henric Johnson Blekinge Institute of Technology, Sweden Henric Johnson Outline Basic Concepts of SNMP SNMPv1 Community Facility SNMPv3 Recommended Reading and WEB Sites Henric Johnson Basic Concepts of SNMP An integrated collection of tools for network monitoring and control. Single operator interface Minimal amount of separate equipment. Software and network communications capability built into the existing equipment SNMP key elements: Management station Managament agent Management information base Network Management protocol Get, Set and Notify Henric Johnson Protocol context of SNMP Henric Johnson Proxy Configuration Henric Johnson Henric Johnson SNMP v1 and v2 Trap – an unsolicited message (reporting an alarm condition) SNMPv1 is ”connectionless” since it utilizes UDP (rather than TCP) as the transport layer protocol. SNMPv2 allows the use of TCP for ”reliable, . | Chapter 8 Network Management Security Henric Johnson Blekinge Institute of Technology, Sweden Henric Johnson Outline Basic Concepts of SNMP SNMPv1 Community Facility SNMPv3 Recommended Reading and WEB Sites Henric Johnson Basic Concepts of SNMP An integrated collection of tools for network monitoring and control. Single operator interface Minimal amount of separate equipment. Software and network communications capability built into the existing equipment SNMP key elements: Management station Managament agent Management information base Network Management protocol Get, Set and Notify Henric Johnson Protocol context of SNMP Henric Johnson Proxy Configuration Henric Johnson Henric Johnson SNMP v1 and v2 Trap – an unsolicited message (reporting an alarm condition) SNMPv1 is ”connectionless” since it utilizes UDP (rather than TCP) as the transport layer protocol. SNMPv2 allows the use of TCP for ”reliable, connection-oriented” service. Henric Johnson Comparison of SNMPv1 and SNMPv2 SNMPv1 PDU SNMPv2 PDU Direction Description GetRequest GetRequest Manager to agent Request value for each listed object GetRequest GetRequest Manager to agent Request next value for each listed object ------ GetBulkRequest Manager to agent Request multiple values SetRequest SetRequest Manager to agent Set value for each listed object ------ InformRequest Manager to manager Transmit unsolicited information GetResponse Response Agent to manager or Manage to manager(SNMPv2) Respond to manager request Trap SNMPv2-Trap Agent to manager Transmit unsolicited information Henric Johnson SNMPv1 Community Facility SNMP Community – Relationship between an SNMP agent and SNMP managers. Three aspect of agent control: Authentication service Access policy Proxy service Henric Johnson SNMPv1 Administrative Concepts Henric Johnson SNMPv3 SNMPv3 defines a security capability to be used in conjunction with SNMPv1 or .
