Wireshark Traffic Analysis: Customizing the Interface, ARP, ICMP, and DNS

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Ross Bagurdes

3:17:53

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1. Course Overview

1. Course Overview.mp4

01:53

2. Customizing the Wireshark Interface

1. Introduction.mp4

01:15

2. Demo- Create and Edit Profiles.mp4

17:43

3. Demo- Adding and Removing Columns.mp4

11:03

4. Demo- Adding Filter Buttons.mp4

12:59

5. Demo- Modifying Colorization Rules.mp4

10:27

6. Summary.mp4

01:15

3. Troubleshooting Layer 2 Issues with ARP

1. Introduction.mp4

01:52

2. How ARP Works.mp4

06:53

3. Demo- Examining ARP Operation in Wireshark.mp4

16:22

4. Demo- Ensuring All Packets Are Captured with SPAN Port.mp4

03:36

5. Demo- ARP Operation with a Device Offline.mp4

04:00

6. Demo- ARP Operation with a Duplicate IP Address on the Network.mp4

06:01

7. Summary.mp4

02:01

4. Introducing ICMP to Troubleshoot Networks

1. Introduction.mp4

01:15

2. Internet Control Message Protocol (ICMP).mp4

05:24

3. Demo- Capturing and Analyzing Ping Traffic in Wireshark.mp4

15:07

4. ICMP Types and Codes.mp4

04:21

5. Traceroute Operation.mp4

04:43

6. Demo- Examining TRACERT in Wireshark on Windows.mp4

10:30

7. Demo- Examining TRACEROUTE in Wireshark on Linux.mp4

06:12

8. Summary.mp4

01:13

5. Troubleshooting Using ICMP Error Messages

1. Introduction.mp4

02:15

2. ICMP Type 3 Codes.mp4

02:10

3. Demo- Examining ICMP Destination Host Unreachable.mp4

04:54

4. Demo- Examining ICMP Destination Network Unreachable.mp4

04:32

5. Demo- Examining ICMP Destination Port Unreachable.mp4

05:20

6. Demo- Examining ICMP Destination Protocol Unreachable.mp4

04:14

7. Demo- Examining ICMP Destination Administratively Prohibited.mp4

03:08

8. Demo- Examining ICMP Redirects.mp4

06:57

9. Summary.mp4

01:49

6. Examining and Troubleshooting DNS

1. Introduction.mp4

01:15

2. The Flow to Request a Website.mp4

03:30

3. Demo- Examining Slow DNS Response Causing Website Download Delay.mp4

10:24

4. Summary.mp4

01:20

Description

Using Wireshark to identify and analyze ARP, ICMP, and DNS traffic is a great tool to add to a network engineer's toolkit. Many of the most easily corrected problems on a network can be solved by understanding proper operation of these protocols.

What You'll Learn?

Network engineers can quickly become frustrated with unusual network performance issues. While most engineers are familiar with ARP and know how to clear a cache on a device, and they use ping regularly to troubleshoot networks, understanding both ARP and ICMP operation at the packet level will bring a new way to quickly solve network issues. In this course, Wireshark Traffic Analysis: Customizing the Interface, ARP, ICMP, and DNS, you will gain the ability to use Wireshark captures to detect and understand network issues causing performance problems. First, you will see how to customize the Wireshark interface, creating profiles for unique troubleshooting situations. Next, you will discover ARP operation, what it means, and how to use it to identify specific behaviors of network traffic. Finally, you will explore how to analyze ICMP types and codes in Wireshark, so you can use it to troubleshoot networks in a new way. When you are finished with this course, you will have the skills and knowledge of Wireshark protocol analysis needed to analyze and troubleshoot ARP, ICMP, and DNS traffic on your network.

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Wireshark

Ross Bagurdes

Instructor's Courses

Ross has had a diverse career. He has a Structural Engineering degree from Milwaukee School of Engineering, but gave up the career shortly after graduating from college. Beginning in 1997, Ross began officially working in IT, implementing and supporting a paperless work order system for a Natural Gas Utility in Illinois. Since then, Ross has spent his years teaching and managing data networks. Ross spent 7 years at University of Wisconsin Hospitals and Clinics, supporting and managing the large enterprise network. He now has returned to teaching at Madison College in Madison, Wisconsin. Ross can be reached at [email protected].

Pluralsight

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Pluralsight, LLC is an American privately held online education company that offers a variety of video training courses for software developers, IT administrators, and creative professionals through its website. Founded in 2004 by Aaron Skonnard, Keith Brown, Fritz Onion, and Bill Williams, the company has its headquarters in Farmington, Utah. As of July 2018, it uses more than 1,400 subject-matter experts as authors, and offers more than 7,000 courses in its catalog. Since first moving its courses online in 2007, the company has expanded, developing a full enterprise platform, and adding skills assessment modules.