The most popular shows from the Packet Pushers Podcast Network in one feed. 1-The Weekly Show (network engineering). 2-Priority Queue (even more network engineering). 3-Datanauts (the full IT stack including cloud). 4-Network Break (IT news and analysis from the week). 5-Briefings In Brief (interesting vendor stories in 15 minutes or less).
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PP098: What Goes On Inside a Firewall?
On today’s show, we pop the lid off of a firewall (figuratively speaking) to understand what’s inside. We talk about how a packet moves through various packet-processing elements inside a firewall, how header analysis and de-encapsulation work, which hardware component has the biggest impact on performance, why stateful inspection still matters in an age of... Read more »
NB563: Palo Alto Networks Nets Koi for AI Security; Quantum Networking Notches Research Wins
Take a Network Break! We start with follow-ups on secure browsers and data centers in space, and then sound the red alert about an RCE vulnerability in NLTK. On the news front, Palo Alto Networks acquires a startup that monitors endpoints for malicious packages, browser extensions, scripts, and other threats, Lumen debuts a multi-cloud gateway... Read more »
HN815: All About PCE
Traditional routing protocols like OSPF simply choose the “shortest” path. If the shortest path is full of traffic and there are alternate paths carrying nothing, OSPF can’t help you. Path Computation Element (PCE) along with Path Computation Element Protocol (PCEP) is a way to construct forwarding paths through the network based on factors that distributed... Read more »
N4N049: Understanding Firewalls
Today, Ethan and Holly provide an overview of firewalls. While cybersecurity is a separate discipline from network engineering, much of what happens in cybersecurity is interesting at the packet level, so there’s a good deal of overlap. It’s likely that as a network engineer, you’ll be managing, or at least dealing with, firewalls in your... Read more »
D2DO294: AI in My Vuln Research Workflow
Kat Traxler, Principal Security Researcher at Vectra AI, returns to the podcast to discuss her AI-powered vulnerability research workflow. She explains how she uses two different AI models to act as the “blackboard” while she applies her expertise to triage AI-generated ideas to increase her productivity. She also asks a concerning question: As AI automates... Read more »
PP097: How and Why to Turn the Browser into a Universal Security Agent (Sponsored)
With the rise of cloud services and SaaS, the browser has become a primary productivity tool. It’s also a primary vector for malware, phishing, identity theft, data leaks, and other risks. On today’s sponsored episode with Palo Alto Networks, we dive into browser security. We discuss risks to the browser and how they differ from... Read more »
NB562: Cisco Challenges Broadcom With 102.4Tb ASIC; Arista Reaches Record Revenues
Take a Network Break! We start with listener follow-up on data centers in space, and sound the Red Alert about a sandbox failure in Claude Code and a rash of Microsoft zero-days. On the news front, Cisco announces a 102.4Tbps switch ASIC in its Silicon One line of homegrown chips, and adds AI agent monitoring... Read more »
TNO055: Testing as a Service for Telco Network Services
Scott talks with Mark Gebert from Verizon about something that sits at the heart of every reliable enterprise network: testing. Automation is moving fast in the telco world, but automation without testing is just an accident waiting to happen. They unpack what makes enterprise service provisioning so complex—multi-vendor networks, optical and IP gear, security functions,... Read more »
HN814: Automating Your Network with Cisco Crosswork Workflow Manager (Sponsored)
Our topic today is building and running network workflows. If your network workflows live in a spreadsheet, a SharePoint document, or in your head, you really need a workflow manager. A workflow manager brings scalability, repeatability, and consistency to your network operations team. In this sponsored episode, we discuss Cisco Crosswork Workflow Manager. Our guests... Read more »
LIU008: Breaking Barriers: Thriving as a Woman in Tech
Kevin and Alexis sit down with Melissa Brooks, a Senior Cloud Engineer at Aritzia, to discuss how she went from being a “terrible waitress” to going back to school for a diploma in network security. They explore how she used a strategic, “reverse engineered” approach to goal setting to land on a career in tech.... Read more »
NAN113: What Works, and What Doesn’t, in Network Automation Projects
Today we are joined by Matt Remke, who has spent years in the trenches of network automation projects as a consultant. Matt offers a unique, non-engineer perspective on scaling network automation in real-world, complex environments for some of the world’s largest companies. Matt shares what worked, what backfired, and the hard-earned lessons he has gained... Read more »
PP096: Taking Note of a Notepad++ Attack; Telnet and NTLM Are Still a Thing?
Everything old is new again in today’s Packet Protector news roundup, as a decade-old Telnet exploit resurfaces, and Microsoft unfolds its roadmap to phase out the ancient NTLM protocol. In other news, Google takes down a sprawling residential proxy network, the popular Notepad++ app takes steps to recover from a serious compromise, and a Polish... Read more »
NB561: Kubernetes Retires Ingress NGINX; Are Data Centers Headed for Orbit?
Take a Network Break! We start with a trio of follow-ups, including a correction regarding Mplify certifications, Cisco proposing new OSI layers, and free-space optics. Our Red Alert sounds off about a remote code execution vulnerability in the Ivanti Endpoint Manager Mobile agent. On the news front, Broadcom announces new silicon for wireless APs for... Read more »
HN813: What Should Networkers Know About Software Development (and Vice Versa)?
What should network engineers know about software development? What should software developers know about networking? Ethan and Drew sit down with Chris Rapier and Nick Buraglio to discuss why crossing these silos can improve outcomes for everyone. They break down why being a little curious about the infrastructure can help software developers write better code,... Read more »
N4N048: QoS Fundamentals
Quality of Service (QoS) is a huge topic with a punishingly large group of acronyms. Join Ethan and Holly as they help you build a mental framework of what QoS is and what it solves. Not only do they break down essential acronyms, they also discuss QoS fundamentals, define the major groups of QoS tools,... Read more »