Advanced TCP/IP training course description

An intensive advanced TCP/IP course focusing on the details of the protocols according to the RFCs. This course is designed to go into the technical details of the protocols and is not for those that are new to TCP/IP. A particular focus is on TCP and performance. Those more interested in routing protocols should see our Definitive IP routing for engineers course. It is expected that delegates are totally familiar with configuration addressing. Hands on sessions consist of protocol analysis using Wireshark.

What will you learn

• Analyse packets and protocols in detail.
• Troubleshoot networks using Wireshark.
• Find performance problems using Wireshark.
• Perform network forensics.

Advanced TCP/IP training course details

Advanced TCP/IP training course contents

• What is Wireshark?

Network analysis, troubleshooting, network traffic flows.
Hands on Download/install Wireshark.

• Wireshark introduction

Capturing packets, libpcap, winpcap, airpcap. Dissectors and plugins. The menus. Right click.
Hands on Using Wireshark.

• Capturing traffic

Wireshark and switches and routers. Remote traffic capture.
Hands on Capturing packets.

• Capture filters

Applying, identifiers, qualifiers, protocols, addresses, byte values. File sets, ring buffers.
Hands on Capture filters.

• Preferences

Configuration folders. Global and personal configurations. Capture preferences, name resolution, protocol settings. Colouring traffic. Profiles.
Hands on Customising Wireshark.

• Time

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.

• Display filters

Applying, clearing, expressions, right click, conversations, endpoints, protocols, combining filters, specific bytes, regex filters.
Hands on Display traffic.

• Streams

Traffic reassembly, UDP and TCP conversations, SSL.
Hands on Recreating streams.

• Saving

Filtered, marked and ranges.
Hands on Export.

• TCP/IP Analysis

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.

• Application analysis

DHCP, HTTP, FTP, SMTP.
Hands on Analysing application traffic.

• WiFi

Signal strength and interference, monitor mode and promiscuous mode. Data, management and control frames.
Hands on WLAN traffic.

• VoIP

Call flows, Jitter, packet loss. RTP, SIP.
Hands on Playing back calls.

• Performance problems

Baselining. High latency, arrival times, delta times.
Hands on Identifying poor performance.

• Network forensics

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.

Learning path

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