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The Internet of Things (IoT) uses the protocols of the IP world to make new applications available and network a multitude of end devices. The classic network technologies and protocols constitute a basis for this task, at best. For the large-scale networking in IoT, new solutions are required. This training imparts both the technological basics for the networking of end devices with IPv4 and IPv6, as well as the special requirements of the IoT. Practice-related exercises in a test network permit a better insight into typical protocols and their implementation.
- Course Contents
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• Internet of Things—A Definition
• Application Areas for IoT
• Communication Models
• Networking Technologies (Ethernet, Wireless, Mobile Communications)
• The Internet Protocol (IPv4 and IPv6)
• IP Applications for the Internet of Things (HTTP, CoAP, MQTT, etc.)
• End Devices for IoT
• Communication Relations and Scalability
• QoS and Real-Time Capability
• New Protocols in IoT (6LoWPAN …)
• Security and Network Management
• Troubleshooting in Distributed Environments
• The Connection to the Data Center and Business Applications
Each participant will receive the comprehensive course documentation of the ExperTeach Networking series in German language. Optionally, we provide the printed version or an ExperTeach e-book.
- Target Group
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The training addresses technically-oriented employees in network planning and operation who are expected to understand basic protocol processes and applications for the networking of the Internet of Things. The course contents will be deepened by hands-on exercises in a test network.
- Knowledge Prerequisites
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Basic IT know-how is mandatory for a successful participation in the course.
| 1 | Definition und Motivation |
| 1.1 | Was ist IoT? |
| 1.2 | Anwendungsbereiche des IoT |
| 1.3 | Neue Technologie im IoT? |
| 1.4 | IoT Referenz-Modell |
| 1.5 | Schichtenmodelle für das IoT - Beispiel |
| 1.6 | Akteure und Standards im IoT |
| 2 | Übertragung und Vermittlung (OSI 1-2) |
| 2.1 | Verschiedene Technologien - eine Übersicht |
| 2.1.1 | ...Low-Rate WPAN - Standard IEEE 802.15.4 |
| 2.1.2 | Low-Rate WPAN - Geräte und Topologien |
| 2.1.3 | IEEE 802.15.4 - Architektur |
| 2.1.4 | IEEE 802.15.4 - Modulation und Spreizung |
| 2.1.5 | IEEE 802.15.4 auf Mac-Layer (1) - CSMA/CA |
| 2.1.6 | IEEE 802.15.4 auf MAC-Layer (2) |
| 2.2 | Ethernet |
| 2.3 | Wireless LAN |
| 2.4 | Bluetooth (IEEE 802.15.1) |
| 2.5 | LoRaWAN |
| 2.5.1 | LoRa - Modulation |
| 2.5.2 | LoRaWAN - Sterntopologie |
| 2.5.3 | LoRaWAN - Security |
| 2.6 | Thread |
| 2.6.1 | Thread: Topologie und Anwendung |
| 2.6.2 | Thread: Security durch Commissioning |
| 2.7 | Sigfox |
| 2.8 | NB-IoT Überblick |
| 3 | Der Netzwerk-Layer: IP und Routing im IoT |
| 3.1 | Warum IP im IoT? |
| 3.2 | Echtzeitfähigkeit und QoS |
| 3.3 | IPv6 - Anforderungen an das neue IP |
| 3.3.1 | Das Header-Format in IPv6 |
| 3.3.2 | Erweiterungen mit dem Next Header |
| 3.3.3 | Die IPv6-Adressen |
| 3.3.4 | Global Unicast Adressen |
| 3.4 | Adresszuweisung bei IPv6 |
| 3.5 | IPv6 over IEEE 802.15.4 (RFC 4944) |
| 3.5.1 | 6LoWPAN (RFC 4944) Überblick |
| 3.5.2 | 6LoWPAN Dispatch Byte |
| 3.5.3 | 6LoWPAN Header Übersicht |
| 3.5.4 | Mesh Type und Mesh Addressing Header |
| 3.5.5 | Fragmentation Type und Header |
| 3.5.6 | Adressierung mit 6LoWPAN |
| 3.5.7 | Header Compression in 6LoWPAN |
| 3.6 | Routing in LoWPANs |
| 3.6.1 | Routingprotokoll RPL |
| 3.6.2 | RPL Topologien |
| 3.6.3 | DODAG Aufbau |
| 3.6.4 | Mesh-Under vs. Route-Over |
| 3.7 | IPv6 über Bluetooth Low Energy (BLE) |
| 3.8 | ZigBee und IPv6 |
| 3.9 | Thread |
| 4 | Protokolle der Applikationsschicht |
| 4.1 | Welches Transportprotokoll? |
| 4.1.1 | UDP – verbindungslos und ungesichert |
| 4.1.2 | TCP – anwendungsorientiert und gesichert |
| 4.2 | Datentransport ohne spezielles Applikationsprotokoll |
| 4.3 | MQTT |
| 4.3.1 | Das Protokoll |
| 4.3.2 | MQTT-Server/-Broker und Clients |
| 4.3.3 | Subscriptions, Topics, Topic Filter, Session |
| 4.3.4 | Datenformat in MQTT-Paketen |
| 4.3.5 | Flags im Fixed Header |
| 4.3.6 | Variabler Header CONNECT-Nachricht (1) |
| 4.3.7 | CONNACK (Acknowledge connection request) |
| 4.3.8 | MQTT Nachrichtentypen: CONNECT, CONNACK |
| 4.3.9 | CONNACK - Return Codes |
| 4.3.10 | MQTT PUBLISH Fixed Header |
| 4.3.11 | MQTT PUBLISH Variable Header |
| 4.3.12 | MQTT Nachrichtentypen PUBLISH, PUBACK, PUBREC, PUBREL und PUBCOMP |
| 4.3.13 | MQTT SUBSCRIBE |
| 4.3.14 | MQTT Nachrichtentypen SUBSCRIBE, SUBACK, UNSUBSCRIBE, UNSUBACK |
| 4.3.15 | MQTT Nachrichtentypen PINGREQ, PINGRESP, DISCONNECT |
| 4.3.16 | QoS in MQTT |
| 4.3.17 | Retained Messages |
| 4.3.18 | Last Will Messages |
| 4.4 | Constraint Application Protocol (CoAP) |
| 4.4.1 | CoAP - HTTP |
| 4.4.2 | CoAP Nachrichtenformat |
| 4.4.3 | CoAP Nachrichtenaustausch |
| 4.4.4 | CoAP Request/Response Model |
| 4.4.5 | CoAP - Umgang mit Nachrichtenverlust |
| 4.4.6 | CoAP - Proxy und Caching |
| 4.4.7 | CoAP Methoden |
| 4.4.8 | CoAP Methoden (Fortsetzung) |
| 5 | IoT-Plattformen und Anbindung an Cloud und Data Center |
| 5.1 | IoT-Modelle |
| 5.2 | IoT-Plattformen - Grundfunktionen |
| 5.3 | Cisco IoT Reference Model |
| 5.4 | Anbindung von „Dingen“ an die Cloud |
| 5.4.1 | Fog-/Edge-Computing |
| 5.5 | Schnittstellen von IoT-Plattformen |
| 5.6 | IoT-Netzwerkmanagement |
| 6 | Security und Troubleshooting im IoT |
| 6.1 | Die Bedrohungslage |
| 6.1.1 | Schutzziele: Security - Privacy - Safety |
| 6.1.2 | Sicherheit auch ohne Teppich: von IT zu OT |
| 6.1.3 | Privacy und Datenschutz |
| 6.1.4 | Neue Angriffsziele |
| 6.1.5 | Typologie der Angreifer |
| 6.1.6 | Ziele der Angreifer |
| 6.2 | Typische Angriffe |
| 6.2.1 | Sicherheit durch Design |
| 6.2.2 | Sicherheit durch Dokumentation und Support |
| 6.2.3 | RIPE und ATLAS-Netz |
| 6.2.4 | OWASP – IoT-Project |
| 6.2.5 | Ansatz Embedded Security |
| 6.3 | Klassische Security-Ansätze |
| 6.4 | Sicherheitscheckliste IoT |
| 6.5 | Troubleshooting und systematische Fehlersuche |
| 6.5.1 | Baselining |
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