Wireshark is a free network protocol analyser. This hands-on course provides a comprehensive tour of using Wireshark to troubleshoot networks. The course concentrates on the information needed in order to pass the WCNA exam. Students will gain the most from this course only if they already have a sound knowledge of the TCP/IP protocols.
Delegates will learn how to
By the end of the course delegates will be able to:
- Download and install Wireshark.
- Capture and analyse packets with Wireshark.
- Configure capture and display filters.
- Customise Wireshark.
- Troubleshoot networks using Wireshark.
What is Wireshark?
Network analysis, troubleshooting, network traffic flows.
Hands on Download/install Wireshark.
Capturing packets, libpcap, winpcap, airpcap. Dissectors and plugins. The menus. Right click.
Hands on Using Wireshark.
Wireshark and switches and routers. Remote traffic capture.
Hands on Capturing packets.
Applying, identifiers, qualifiers, protocols, addresses, byte values. File sets, ring buffers.
Hands on Capture filters.
Configuration folders. Global and personal configurations. Capture preferences, name resolution, protocol settings. Colouring traffic. Profiles.
Hands on Customising Wireshark.
Packet time, timestamps, packet arrival times, delays, traffic rates, packets sizes, overall bytes.
Hands on Measuring high latency.
Trace file statistics
Protocols and applications, conversations, packet lengths, destinations, protocol usages, strams, flows.
Hands on Wireshark statistics.
Applying, clearing, expressions, right click, conversations, endpoints, protocols, combining filters, specific bytes, regex filters.
Hands on Display traffic.
Traffic reassembly, UDP and TCP conversations, SSL. Hands on Recreating streams.
Filtered, marked and ranges. Hands on Export.
The expert system. DNS, ARP, IPv4, IPv6, ICMP, UDP, TCP. Hands on Analysing traffic.
IO rates and trends
Basic graphs, Advanced IO graphs. Round Trip Time, throughput rates. Hands on Graphs.
DHCP, HTTP, FTP, SMTP.
Hands on Analysing application traffic.
Signal strength and interference, monitor mode and promiscuous mode. Data, management and control frames.
Hands on WLAN traffic.
Call flows, Jitter, packet loss. RTP, SIP.
Hands on Playing back calls.
Baselining. High latency, arrival times, delta times.
Hands on Identifying poor performance.
Host vs network forensics, unusual traffic patterns, detecting scans and sweeps, suspect traffic.
Hands on Signatures.
Command line tools
Tshark, capinfos, editcap, mergecap, text2pcap, dumpcap.
Hands on Command tools.
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We use the WebEx video conferencing platform by Cisco. Before you book, check that you meet the WebEx system requirements and run a test meeting (more details in the link below) to ensure the software is compatible with your firewall settings. If it doesn’t work, try adjusting your settings or contact your IT department about permitting the website.
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QA online courses, also commonly known as distance learning courses or elearning courses, take the form of interactive software designed for individual learning, but you will also have access to full support from our subject-matter experts for the duration of your course. When you book a QA online learning course you will receive immediate access to it through our e-learning platform and you can start to learn straight away, from any compatible device. Access to the online learning platform is valid for one year from the booking date.
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When will I receive my certificate?
Certificates of Achievement are issued at the end the course, either as a hard copy or via email. Read more here.