Professional training – Networking

Network Troubleshooting with Wireshark

Network Troubleshooting with Wireshark in 6 focused hours: Capturing traffic: SPAN and TAP, Capture and display filters and TCP analysis: retransmissions, window – practical, with exercises and templates for your daily work.

Duration
6 hours, one session
Level
Intermediate
Format
Online or on-site
Language
German or English
Certificate
Certificate of attendance

Overview

“Network Troubleshooting with Wireshark” is a compact live course in the field of Networking. It centres on Capturing traffic: SPAN and TAP, Capture and display filters and TCP analysis: retransmissions, window – explained with realistic examples and deepened in exercises you can transfer straight to your daily work.

A stable, secure network is the prerequisite for almost every IT service, and with cloud connectivity, remote work, Wi-Fi and segmentation, complexity keeps growing. Our Network Troubleshooting with Wireshark courses are aimed at network administrators, system owners and security teams who need to design, configure and secure networks and get them running again quickly after incidents. We combine protocol understanding with practical configuration: you work in a provided lab with real or virtual devices and analyze traffic yourself. The course runs online or on site, lasts one day and is offered at a fixed price per participant.

The course is delivered live – either online in a virtual classroom or on-site in our training rooms in Munich, Salzburg, Berlin, Augsburg, Hanover, Bremen, Stuttgart and Kaiserslautern. We can also run it exclusively for your team.

Focus areas of the course

Capturing traffic: SPAN and TAPCapture and display filtersTCP analysis: retransmissions, windowDNS, HTTP and TLS analysisLatency and throughput problemsUsing expert information

Who is this course for?

  • Network administrators and network engineers
  • System administrators with network responsibility
  • Security and firewall owners
  • IT architects and technical project managers

What you will be able to do

  • You know the key topics of Network Troubleshooting with Wireshark – Capturing traffic: SPAN and TAP, Capture and display filters, TCP analysis: retransmissions, window, DNS, HTTP and TLS analysis, Latency and throughput problems and Using expert information – and can apply them in practice.
  • You understand how Network Troubleshooting with Wireshark works and place it correctly in the overall network.
  • You configure Network Troubleshooting with Wireshark securely, traceably and with documentation.
  • You narrow down Network Troubleshooting with Wireshark issues systematically and resolve them.
  • You plan changes so that availability and security are preserved.

Course outline

Module 1 Fundamentals and architecture of Network Troubleshooting with Wireshark
  • Key terms, protocols and operating principles
  • Where Network Troubleshooting with Wireshark fits in the overall network and the OSI model
  • Typical use cases and design decisions
  • Differences from alternative technologies and vendors
Module 2 Focus areas: Network Troubleshooting with Wireshark
  • Capturing traffic: SPAN and TAP
  • Capture and display filters
  • TCP analysis: retransmissions, window
  • DNS, HTTP and TLS analysis
  • Latency and throughput problems
  • Using expert information
Module 3 Configuration and commissioning
  • Building the lab environment and base configuration
  • Step-by-step setup of Network Troubleshooting with Wireshark
  • Planning addressing, segmentation and routing cleanly
  • Documenting, backing up and versioning configurations
Module 4 Security, operations and monitoring
  • Hardening according to common best practices
  • Access control, logging and hardening
  • Monitoring availability, load and error rates
  • Carrying out changes and updates in a controlled way
Module 5 Troubleshooting and hands-on labs
  • Systematic layer-by-layer approach to incidents
  • Reproducing and fixing typical Network Troubleshooting with Wireshark failure patterns
  • Analyzing traffic and log files
  • Case studies from real network environments
Module 6 Transfer to your daily work
  • Exercise based on a realistic case
  • Typical mistakes and how to avoid them
  • Checklist and templates to take away
  • Open questions, outlook and resources for further learning

Prerequisites

Basic IT and networking knowledge (IP addresses, switches, routers) is helpful. Entry-level courses require no prior knowledge. Basic knowledge of the topic is helpful.

Technical requirements

Laptop with a current browser and SSH client; lab environment and device access for Network Troubleshooting with Wireshark are provided by us.

Dates & locations

For every location we suggest a date roughly four weeks ahead. Your preferred date is always possible.

  • Munich Fri, 11 December 2026 6 hrs Request
  • Salzburg Tue, 15 December 2026 6 hrs Request
  • Berlin Fri, 11 December 2026 6 hrs Request
  • Augsburg Wed, 16 December 2026 6 hrs Request
  • Hanover Mon, 14 December 2026 6 hrs Request
  • Bremen Mon, 14 December 2026 6 hrs Request
  • Stuttgart Tue, 15 December 2026 6 hrs Request
  • Kaiserslautern Mon, 14 December 2026 6 hrs Request
  • Online Wed, 16 December 2026 6 hrs Request

Frequently asked questions

Who is the Network Troubleshooting with Wireshark course for?

It is for network and system administrators, security owners and architects who plan, operate or secure Network Troubleshooting with Wireshark. Beginners learn the concepts, while experienced engineers deepen design, troubleshooting and automation. In a short pre-call we clarify your priorities.

Do we work on real devices?

For Network Troubleshooting with Wireshark we use a lab with real or virtualized network devices and analysis tools. You configure on your own, provoke failures and evaluate traffic. Your company's production networks are not touched.

How much does “Network Troubleshooting with Wireshark” cost?

The course costs a flat €949 plus VAT per participant – whether online or on-site. This includes 6 hours of live training with a trainer, course materials, a lab environment and a certificate of attendance.

Can I suggest my own date?

Yes. For every location we suggest a date roughly four weeks ahead. In the request form you can always describe your preferred date or period in free text – we check availability and get back to you within one working day.

Is the course online or on-site?

Both are possible: live online in a virtual classroom or on-site in Munich, Salzburg, Berlin, Augsburg, Hanover, Bremen, Stuttgart and Kaiserslautern. We can also run the course exclusively for your team.

Can the course be tailored to our team?

Yes. Tailor-made courses cost approx. €4,500 more, depending on the topic and by arrangement. We agree content, examples and exercises with you in advance.

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