David Bombal

Big thank you to Infoblox for sponsoring this video. For more information on Infoblox have a look at their website: https://www.infoblox.com/

// Get Wireshark Certified //

Check out the official training course

📘 GET TRAINING:

https://courses.davidbombal.com/l/pdp...

Use code "WiresharkHack" to get a $50 discount

🔗 Learn more: https://wireshark.org/certifications

In this deep dive, David Bombal is joined by Wireshark expert Chris Greer to

strip down the most critical protocol on the internet: DNS. We move beyond the

theory to show you exactly what DNS looks like "on the wire." Chris reveals why a staggering 92% of malware uses DNS for Command and Control (C2) and how you can use packet analysis to detect these breaches before they spread. We also debunk common myths about DNS only using UDP, explore the "Librarian" analogy for Root Servers, and walk through a live capture of a request to a real website.

What You Will Learn:

•Malware Detection: Why 92% of malware relies on DNS and how to spot C2 traffic.

• Packet Anatomy: A line-by-line breakdown of DNS headers, Transaction IDs, and Flags in Wireshark.

• The TCP Myth: Why blocking TCP port 53 on your firewall can break yournetwork (and why DNS needs it).

• Troubleshooting: How to measure DNS latency (response time) to pinpoint

slow network performance.

• Recursive Lookups: Understanding the chain from your PC to the Root Servers and back.

// Chris Greer’s SOCIAL //

YouTube: / chrisgreer

Official WCA training: https://courses.davidbombal.com/l/pdp...

Use code "WiresharkHack" to get a $50 discount

LinkedIn: / cgreer

Website: https://packetpioneer.com/

// Download Wireshark pcaps from here //

https://github.com/packetpioneer/yout...

https://github.com/packetpioneer/yout...

https://www.wireshark.org/certificati...

https://packetschool.teachable.com/

// WCA Course REFERENCE//

Official WCA training: https://courses.davidbombal.com/l/pdp...

Use code "WiresharkHack" to get a $50 discount

// Chris’ DNS Series on YouTube ‘’

• Your First DNS Lookup—Captured and Explained

// Link to YouTube VIDEO:

• Video

// David's SOCIAL //

Discord: discord.com/invite/usKSyzb

Twitter: www.twitter.com/davidbombal

Instagram: www.instagram.com/davidbombal

LinkedIn: www.linkedin.com/in/davidbombal

Facebook: www.facebook.com/davidbombal.co

TikTok: tiktok.com/@davidbombal

YouTube: / @davidbombal

Spotify: open.spotify.com/show/3f6k6gE...

SoundCloud: / davidbombal

Apple Podcast: podcasts.apple.com/us/podcast...

// MY STUFF //

https://www.amazon.com/shop/davidbombal

// SPONSORS //

Interested in sponsoring my videos? Reach out to my team here: [email protected]

// MENU //

0:00 - Coming up

0:52 - More Wireshark! // It's always DNS

02:45 - Infoblox sponsored segment

03:37 - DNS basics in Wireshark // How DNS works

06:52 - Analysing the DNS packet capture

08:32 - Destination address explained

10:09 - Transaction ID explained

11:13 - Flags explained

13:26 - Questions, Answer RRs & Additional RRs explained

15:39 - Additional records explained

17:07 - Response walkthrough

19:24 - Real DNS packet capture walkthrough

21:17 - Quick Wireshark tip

22:32 - Walkthrough continued

25:55 - Going deeper // How DNS resolver works

32:41 - More on Chris Greer YouTube channel and more to come

35:36 - Conclusion

Please note that links listed may be affiliate links and provide me with a small percentage

/kickback should you use them to purchase any of the items listed or recommended. Thank you for supporting me and this channel!

Disclaimer: This video is for educational purposes only.

#dns #infoblox #wireshark

In this video, we dive into a real-world Red Team vs. Blue Team scenario. We simulate a cyberattack on a Finance Application that has integrated a new LLM Chatbot. You’ll see firsthand how attackers use Prompt Injection to bypass standard rules, how they move laterally through Kubernetes clusters, and how they attempt to execute Zero Day exploits.

More importantly, we show you how to defend against it. Using Cisco’s Hybrid Mesh Firewall, AI Defense, and Secure Workload, we demonstrate how to:

1. Detect & Block Prompt Injections: safeguarding your LLMs from manipulation.

2. Secure Kubernetes: using micro-segmentation to isolate threats in the cloud.

3. Inspect Encrypted Traffic: utilizing the Encrypted Visibility Engine (EVE) to

spot malware in TLS flows without decryption.

Whether you are a Network Engineer, Security Analyst, or just interested in how AI is changing the cybersecurity landscape, this demo is packed with practical insights

Big thank you to Cisco for sponsoring my trip to Cisco Live Amsterdam.

// Ant Ducker SOCIALS //

LinkedIn: / ant-ducker-0052801

YouTube channel dCloud: / @ciscodcloud

// Website REFERENCE //

Cisco Security Cloud control: https://sign-on.security.cisco.com/

Cisco.com: https://www.cisco.com/site/us/en/solu...

// YouTube Video REFERENCE //

Rick Miles’ video will be linked at a later stage once published.

/ David's SOCIAL //

Discord: discord.com/invite/usKSyzb

Twitter: www.twitter.com/davidbombal

Instagram: www.instagram.com/davidbombal

LinkedIn: www.linkedin.com/in/davidbombal

Facebook: www.facebook.com/davidbombal.co

TikTok: tiktok.com/@davidbombal

YouTube: / @davidbombal

Spotify: open.spotify.com/show/3f6k6gE...

SoundCloud: / davidbombal

Apple Podcast: podcasts.apple.com/us/podcast...

// MY STUFF //

https://www.amazon.com/shop/davidbombal

// SPONSORS //

Interested in sponsoring my videos? Reach out to my team here: [email protected]

// MENU //

0:00 - Coming Up

01:29 - Intro

02:20 - Demo Overview

03:57 - Demo Begins

09:35 - Adding Guardrails

11:45 - Secure Workloads

14:30 - Segmentation Workflow

18:33 - Overviewing Finance App

21:02 - Encrypted Visibility Engine

24:34 - Firewall Obversability and Control

25:44 - Ant's Advice For The Youth

26:40 - How to Learn Hybrid Mesh Firewall

28:16 - Conclusion

Please note that links listed may be affiliate links and provide me with a small percentage/kickback should you use them to purchase any of the items listed or recommended. Thank you for supporting me and this channel!

Disclaimer: This video is for educational purposes only.

#cisco #ciscolive #ciscoemea

The bottleneck in AI isn't compute anymore, it's the network. In this video, I sit down with Martin, the architect behind Cisco’s Silicon One, to discuss the massive leap to 100 Terabits per second. We go deep into the silicon level to understand how "intelligent agents" embedded in the hardware are solving the packet loss problem for massive AI training clusters.

We cover the new 1.6T Linear Pluggable Optics (LPO), why Cisco is becoming the "Apple of Networking" by building their own full stack, and why they believe Ethernet has officially won the data center war.

Topics Covered:

• Cisco Silicon One: The architecture behind the 100Tbps & 51.2Tbps chips.

• AI Scale: How to interconnect 128,000 GPUs without stalling.

• Hardware Agents: Real-time traffic rerouting at the silicon level.

• 1.6Tbps Optics: Moving DSPs out of the module to save power (LPO).

• Ethernet vs. InfiniBand: Why standard Ethernet is winning in AI.

Big thank you to ‪@Cisco‬ for sponsoring my trip to Cisco Live Amsterdam!

// Martin Lund SOCIALS //

LinkedIn: / martinlundca

// Website REFERENCE //

https://blogs.cisco.com/sp/cisco-sili...

// David's SOCIAL //

Discord: discord.com/invite/usKSyzb

Twitter: www.twitter.com/davidbombal

Instagram: www.instagram.com/davidbombal

LinkedIn: www.linkedin.com/in/davidbombal

Facebook: www.facebook.com/davidbombal.co

TikTok: tiktok.com/@davidbombal

YouTube: / @davidbombal

Spotify: open.spotify.com/show/3f6k6gE...

SoundCloud: / davidbombal

Apple Podcast: podcasts.apple.com/us/podcast...

// MY STUFF //

https://www.amazon.com/shop/davidbombal

// SPONSORS //

Interested in sponsoring my videos? Reach out to my team here: [email protected]

// MENU //

0:00 - Coming Up

01:09 - Intro

01:42 - Cisco's New Announcement (G200 Chip)

02:32 - How Many Companies Are Doing This?

05:02 - Is Cisco The 'Apple' Of Networking?

07:30 - Intelligent Collective Networking

08:09 - Who Designed The Chip?

08:56 - Cisco's New Optical Module

09:59 - Why Do We Need These Speeds?

15:46 - Data Center Scale

16:50 - Cisco Switches

19:16 - Who Is The Target Audience?

20:23 - Linear Pluggable Optics (LPO)

22:04 – Conclusion

Please note that links listed may be affiliate links and provide me with a small percentage/kickback should you use them to purchase any of the items listed or recommended. Thank you for supporting me and this channel!

Disclaimer: This video is for educational purposes only.

#cisco #ciscolive #ciscoemea

Big thanks to ‪@Cisco‬ for sponsoring this video and sponsoring my trip to Cisco Live Amsterdam.

Will AI replace network engineers in 2026? In this video, I sit down with Joe Vaccaro (VP/GM of Cisco ThousandEyes) to reveal the truth about "Agentic Ops" and how it differs from traditional AIOps. We dive deep into the new "Digital Teammate" concept within ThousandEyes and demo exactly how AI agents can autonomously troubleshoot complex network outages (like DHCP and DNS failures) in seconds.

Instead of taking your job, Joe explains how these agents act as a force multiplier for your career—handling the tedious "mean time to innocence" tasks so you can focus on architecture. If you are worried about the future of the CLI or manual troubleshooting, you need to see this demo.

Key Topics Covered:

• Cisco Agentic Ops Explained: Joe Vaccaro breaks down the shift to autonomous reasoning.

• ThousandEyes Demo: Watch an AI agent diagnose a DHCP failure and suggest the exact fix (subnet expansion).

• Views Explainability: How to troubleshoot "unknown paths" and ISP outages

(like AWS/Azure) automatically.

• Career Survival Guide: Why Cisco believes AI will train the next generation of CCIE-level engineers, not replace them.

//Joe Vaccaro’s SOCIAL //

Cisco Blogs: https://blogs.cisco.com/author/vaccaroj

LinkedIn: / joevaccaro

X: https://x.com/joevaccaro

X: https://x.com/thousandeyes

Website: https://www.thousandeyes.com/

// David's SOCIAL //

Discord: discord.com/invite/usKSyzb

Twitter: www.twitter.com/davidbombal

Instagram: www.instagram.com/davidbombal

LinkedIn: www.linkedin.com/in/davidbombal

Facebook: www.facebook.com/davidbombal.co

TikTok: tiktok.com/@davidbombal

YouTube: / @davidbombal

Spotify: open.spotify.com/show/3f6k6gE...

SoundCloud: / davidbombal

Apple Podcast: podcasts.apple.com/us/podcast...

// MY STUFF //

https://www.amazon.com/shop/davidbombal

// SPONSORS //

Interested in sponsoring my videos? Reach out to my team here: [email protected]

// MENU //

0:00 - Coming up

0:42 - Troubleshooting

02:00 - ThousandEyes Updates

03:52 - Demo 1

06:50 - Agentic Steps on a network

07:26 - Demo 2

10:50 - ThousandEyes Outages Page

11:34 - Agents in ThousandEyes

13:49 - New Demands by AI

14:14 - Will AI Replace Network Engineers ?

15:15 - Will The Agents Need a Human in the loop?

16:10 - Will This become More Autonomous ?

16:48 - Conclusion & Outro

Please note that links listed may be affiliate links and provide me with a small percentage/kickback should you use them to purchase any of the items listed or recommended. Thank you for supporting me and this channel!

Disclaimer: This video is for educational purposes only.

#cisco #ciscolive #ciscoemea

Big thanks to Cisco for sponsoring this video and sponsoring my trip to Cisco Partners’ Summit 2025

// Anurag Dhingra SOCIALS //

Cisco Blogs: https://blogs.cisco.com/author/anurag...

X: https://blogs.cisco.com/author/anurag...

LinkedIn: / anurag-dhingra

// David's SOCIAL //

Discord: discord.com/invite/usKSyzb

Twitter: www.twitter.com/davidbombal

Instagram: www.instagram.com/davidbombal

LinkedIn: www.linkedin.com/in/davidbombal

Facebook: www.facebook.com/davidbombal.co

TikTok: tiktok.com/@davidbombal

YouTube: / @davidbombal

Spotify: open.spotify.com/show/3f6k6gE...

SoundCloud: / davidbombal

Apple Podcast: podcasts.apple.com/us/podcast...

// MY STUFF //

https://www.amazon.com/shop/davidbombal

// SPONSORS //

Interested in sponsoring my videos? Reach out to my team here: [email protected]

// MENU //

0:00 - Coming Up

0:34 - Intro

01:55 - How is AI Affecting Networking

03:55 - Agentic AI

07:05 - Cisco Agents

09:15 - Cisco Evolving Devices

12:16 - Local AI in Manufacturing Companies

13:17 - Edge AI (Cisco Unified Edge)

16:00 - Practical Use of AI

Please note that links listed may be affiliate links and provide me with a small percentage/kickback should you use them to purchase any of the items listed or recommended. Thank you for supporting me and this channel!

Disclaimer: This video is for educational purposes only.

#agenticai #cisco #ciscops25

Deutsche Telekom reveals how they blocked a massive car hack that dropped 100,000 connections instantly. We discuss the truth about 6G, the future of 5G satellites, and securing 240 million devices.

A big thank you to Cisco for sponsoring this video and sponsoring my trip to the Cisco Partner Summit San Diego 2025.

// Niklas Horstmann SOCIAL //

LinkedIn: / niklas-horstmann

// Website REFERENCE //

https://www.t-mobile.com/

// David's SOCIAL //

Discord: discord.com/invite/usKSyzb

Twitter: www.twitter.com/davidbombal

Instagram: www.instagram.com/davidbombal

LinkedIn: www.linkedin.com/in/davidbombal

Facebook: www.facebook.com/davidbombal.co

TikTok: tiktok.com/@davidbombal

YouTube: / @davidbombal

Spotify: open.spotify.com/show/3f6k6gE...

SoundCloud: / davidbombal

Apple Podcast: podcasts.apple.com/us/podcast...

// MY STUFF //

https://www.amazon.com/shop/davidbombal

// SPONSORS //

Interested in sponsoring my videos? Reach out to my team here: [email protected]

// MENU //

0:00 - Coming Up

0:44 - Intro

01:35 - Networking & Security

04:22 - Germany's Internet Problems

05:38 - Emerging Technologies

08:30 - Will Cellphones Use Satellite?

09:58 - Intelligent Networks

16:08 - Niklas' Cool Story

18:06 - Niklas' Advice for the Youth

19:11 - Conclusion

Please note that links listed may be affiliate links and provide me with a small percentage/kickback should you use them to purchase any of the items listed or recommended. Thank you for supporting me and this channel!

Disclaimer: This video is for educational purposes only.

#6g #5g #deutschetelekom

Cisco is offering 200+ free training courses to help you master AI and networking. In this interview, we discuss why 78% of tech roles now require AI skills and how to future - proof your career in 2025.

// Sponsored SEGMENT //

A big thank you to Cisco for sponsoring this video and sponsoring my trip to the Cisco Partner Summit San Diego 2025

// Fran Katsoudas’ SOCIAL //

LinkedIn: / fkatsoudas

// Website REFERENCE //

https://www.netacad.com/

// David's SOCIAL //

Discord: discord.com/invite/usKSyzb

Twitter: www.twitter.com/davidbombal

Instagram: www.instagram.com/davidbombal

LinkedIn: www.linkedin.com/in/davidbombal

Facebook: www.facebook.com/davidbombal.co

TikTok: tiktok.com/@davidbombal

YouTube: / @davidbombal

Spotify: open.spotify.com/show/3f6k6gE...

SoundCloud: / davidbombal

Apple Podcast: podcasts.apple.com/us/podcast...

// MY STUFF //

https://www.amazon.com/shop/davidbombal

// SPONSORS //

Interested in sponsoring my videos? Reach out to my team here: [email protected]

// MENU //

0:00 - Coming up

0:42 - AI changing career roles

04:03 - The Workforce Consortium // Free training

06:36 - The Networking Academy (NetAcad)

10:12 - Cisco Edge Center // Impact on lives

13:25 - Network is "sexy"

15:07 - Advice for the youth in tech

17:18 - How to stay motivated

18:56 - How NetAcad changes lives

21:56 - Conclusion

Please note that links listed may be affiliate links and provide me with a small percentage/kickback should you use them to purchase any of the items listed or recommended. Thank you for supporting me and this channel!

Disclaimer: This video is for educational purposes only.

#cisco #ciscops25 #freetraining

In this interview Vijoy Pandey from Cisco Outshift discusses the "Internet of Agents," the donation of the AGNTCY framework to the Linux Foundation, and the new open-source SRE tool "Cape." Plus, how Swisscom is using agentic workflows to validate networks.

Big thanks to Cisco for sponsoring this video and sponsoring my trip to Cisco Partners’ Summit 2025

// Vijoy Pandey SOCIALS //

LinkedIn: / vijoy

X: https://x.com/vijoy

// David's SOCIAL //

Discord: discord.com/invite/usKSyzb

Twitter: www.twitter.com/davidbombal

Instagram: www.instagram.com/davidbombal

LinkedIn: www.linkedin.com/in/davidbombal

Facebook: www.facebook.com/davidbombal.co

TikTok: tiktok.com/@davidbombal

YouTube: / @davidbombal

Spotify: open.spotify.com/show/3f6k6gE...

SoundCloud: / davidbombal

Apple Podcast: podcasts.apple.com/us/podcast...

// MY STUFF //

https://www.amazon.com/shop/davidbombal

// SPONSORS //

Interested in sponsoring my videos? Reach out to my team here: [email protected]

// MENU //

00:00 - Coming Up

00:37 - Introduction

01:00 - What is Internet of Agents?

02:11 - The 4 Steps of Internet of Agents

03:25 - Project AGNTCY

04:40 - A DNS of the Agentic Internet

06:07 - To What End is the Agency Stack

07:21 - Use-cases for the Agency Stack

11:28 - The Future of the Agency Stack

12:55 - Guardrails for Agents

13:38 - Timeline for the Integration of Agents

14:51 - Outro

Please note that links listed may be affiliate links and provide me with a small percentage/kickback should you use them to purchase any of the items listed or recommended. Thank you for supporting me and this channel!

Disclaimer: This video is for educational purposes only.

#agenticai #agntcy #cisco ‪@Cisco‬

Data centers are wasting 70% of their power. Discover how Immersion Cooling and Fault-Managed Power (Class 4) are solving the AI energy crisis in 2025. In this video, we explore why we are drowning servers in oil and the new skills network engineers need to learn.

Big thank you to Cisco for sponsoring this video and sponsoring my trip to the Cisco Partner Summit San Diego 2025

// Denise Lee’s SOCIALS //

Cisco Blogs: https://blogs.cisco.com/author/deniselee

LinkedIn: / deniseleeyeh

X: https://x.com/deniseleeyeh

// David's SOCIAL //

Discord: discord.com/invite/usKSyzb

Twitter: www.twitter.com/davidbombal

Instagram: www.instagram.com/davidbombal

LinkedIn: www.linkedin.com/in/davidbombal

Facebook: www.facebook.com/davidbombal.co

TikTok: tiktok.com/@davidbombal

YouTube: / @davidbombal

Spotify: open.spotify.com/show/3f6k6gE...

SoundCloud: / davidbombal

Apple Podcast: podcasts.apple.com/us/podcast...

// MY STUFF //

https://www.amazon.com/shop/davidbombal

// SPONSORS //

Interested in sponsoring my videos? Reach out to my team here: [email protected]

// MENU //

0:00 - Coming up

0:47 - Addressing water and power usage in data centers

03:17 - Fault managed power explained

05:45 - Saving energy in data centers // Immersion cooling

10:22 - Addressing noise issues from data centers

11:56 - The cons of a data center

13:36 - Optimizing data centers

14:37 - Advice for the young generation

17:23 - More data centers and more jobs

18:50 - Sustainability for data centers

20:57 - Conclusion

Please note that links listed may be affiliate links and provide me with a small percentage/kickback should you use them to purchase any of the items listed or recommended. Thank you for supporting me and this channel!

Disclaimer: This video is for educational purposes only.

#cisco #sponsored #ciscops2 @Cisco ​

Is AI replacing network engineers? Liz Centoni (Cisco EVP) reveals how Agentic AI is transforming Cisco TAC and network automation. Discover why 77% of support cases are now handled by AI and what this means for your career in 2025.

A big thank you to Cisco for sponsoring this video and for sponsoring my trip to Cisco Partner Summit San Diego 2025

// Liz Centoni SOCIAL//

LinkedIn: / lizcentoni

// David's SOCIAL //

Discord: discord.com/invite/usKSyzb

Twitter: www.twitter.com/davidbombal

Instagram: www.instagram.com/davidbombal

LinkedIn: www.linkedin.com/in/davidbombal

Facebook: www.facebook.com/davidbombal.co

TikTok: tiktok.com/@davidbombal

YouTube: / @davidbombal

Spotify: open.spotify.com/show/3f6k6gE...

SoundCloud: / davidbombal

Apple Podcast: podcasts.apple.com/us/podcast...

// MY STUFF //

https://www.amazon.com/shop/davidbombal

// SPONSORS //

Interested in sponsoring my videos? Reach out to my team here: [email protected]

// MENU //

0:00 - Coming Up

01:08 - Intro

01:28 - Customer Experience

02:01 - Cisco TAC

02:42 - AI & Agentic AI

05:13 - Usage of Agents

07:15 - Will AI Take Jobs Away?

09:18 - Intelligent Call Routing

13:20 - Challenges with Agents

16:57 - Quantum Computing

18:03 - Liz's Advice for the Youth

19:32 - Conclusion

Please note that links listed may be affiliate links and provide me with a small percentage/kickback should you use them to purchase any of the items listed or recommended. Thank you for supporting me and this channel!

Disclaimer: This video is for educational purposes only.

#ai #agenticai #quantumcomputing