This week we use pwru to eBPF filter some packets 🇵🇪; enable dual-5 GHz Radios on Wi-Fi for funsies 📡; explore anycast IPs with the Azure Global Load Balancer ⚖️; see how fragile the DNS root is 💥; bag 32 free Cisco CE Credits to recertify the CCNP 👍; build software quickly for the acceleration era 🚝; watch Packets in Space from a safe distance 🛰️ and host a website on a Vape stick 🦯. Let’s dive in; ⬇️
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NetEng 🔧
What is ‘Packet, where are you?’ - Meet pwru! brings eBPF to packet capture and can help with stuff like MTU troubleshooting, RPF and other packet-level fun in Linux and k8s Container Network setups 🇵🇪
Should you enable two 5GHz radios on access points? answers the question in relation to Cisco 9130 Access Points, but is universally available on many makes and models now, and might not net the gains you think it would 🤔
Output drops due to lack of buffers? explores how serialisation affects differing-speed interlinks and what happens to switch buffers during these 🛁
What Could a Starlink MNO Offering Look Like? posits a future where Starlink act at as a Mobile (Cellular) Provider, offering voice and data services to your latest Apple iPhone over the satellites in the night sky 🛰️
MCP Demystified: A Starting Point for Engineers comes from your perspective trying to learn MCP and relate it back to what you already know 🥋
Azure Global Load Balancer: It’s anycast, Jim! also uses PerfOps to help in a quest to work out what really happens with an Azure GSLB under the hood 🎩
The Governance of the Root of the DNS is a fascinating read into how the DNS root (.) keeps actually running, and why it isn’t the “famous 13” you may have thought it was 🤙
Videos, Tools and Papers 🎓⚒️
🏦 Cisco U - Free CE Credits
💡 Re-certify your CCNA or CCNP with these free Cisco U courses worth over 100 CE Credits
Cisco U: Managing Cisco Network Operating Systems (CNIOS)
(Course, 37 CE Credits, 37h 15m)Cisco U: Enhancing Cisco Security Solutions with Data Analytics (ECSS)
(Course, 32 CE Credits, 31h 30m)Cisco U: Understanding Cisco Network Automation Essentials (DEVNAE)
(Course, 16 CE Credits, 28h 40m)Cisco U: Troubleshooting Cisco Enterprise Networking Solutions (ENTSHRU)
(Course, 16 CE Credits, 16h)Cisco U: Introduction to Network Simulations with CML (CMLLAB)
(Course, 6 CE Credits, 8h 30m)
🎓 Network Engineer Learning
Akvorado 2.0 - Enriched NetFlow to JSON
(Tool, NetFlow, o11y)A Cool Feature of Wireshark You Should Know!
(Video, Wireshark, 4 mins)httpjail - monior and restrict HTTP/S requests from processes
(Tool, GitHub, HTTP/S Proxy)Packets in Space: Networking for the Final Frontier
(Video, Space Networking, 30 mins)
Hiring 💼
📢 The Reload in 10 Jobs Board is here 🥳, with a hand-picked selection of awesome Network Engineering, NetDevOps and Network Automation jobs.
It’s also free to list a job if you’re hiring and want to let us know 👂
🔥 (just some of) This week’s Hot Hirings
🇨🇦 Wireless Network Engineer @ SemFio, Canada, Remote
🇮🇪 Senior Enterprise Network Engineer @ Mastercard, Ireland, Dublin
🇳🇱 Staff Network Development Engineer @ ServiceNow, Netherlands, Amsterdam
🇸🇬 Network Automation Engineer @ Google, Singapore
🇬🇧 Network Engineer @ Capital Group, UK, London
🇺🇸 Staff Network Engineer @ Lambda, USA, CA
NotEng 🤔
Operating Principles That Guided Me to Staff Engineer (Part 2: Expanding Influence) talks about the Influence Flywheel and how you can leverage it to propel yourself to Staff Engineer 🎡
How I build software quickly reminds us that less is more, and “ship, ship, ship, ship it now!” is more important than obsessing over coding language, file structure or which framework to use ⛴️
Seeing like an LLM will make you rethink your next AI Prompt into ChatGPT 🤖
How CISOs Can Drive Effective AI Governance gives a small snippet of insight into SANS AI work and categorising the newest threats on the Corporate IT block 🦿
Shiny tools, shallow checks: how the AI hype opens the door to malicious MCP servers goes deep in detail on what you already know: MCP is about as secure as SNMP v1
publicon your router was when it first went in 🔓Artificial Intelligence for Beginners - A Curriculum is exactly that, a path to follow to learn everything from Expert Systems, GAN, NLP, Multi-Agent Systems, LLM, RAG and more 👨🏫
Fine-grained HTTP filtering for Claude Code combines the best of what you surely know as a Network Engineer (
200 - OK) with Claude Code for agentic AI coding 👍Hosting a WebSite on a Disposable Vape is the best Notberry Pi hosting hack we’ve seen in a long time, there’s more power on a Vape than you might think 💭
Events 📅
🤜 Meet-ups
London Network Automation Meetup, London, 9 October 2025
NetLdn, London, Monthly, Every 2nd Thursday
NetMcr, Manchester, Every Monthly, 2nd Thursday
NetBCN, Barcelona, See schedule
📢 Conferences
🎩 Hat-tip to the wonderful Pete Crocker @ OpsMill for the help
All Things Open 2025, Raleigh, 12 - 14 October 2025
Network X, Paris, 14 - 16 October 2025
OpenInfra Summit Europe, Paris, 17 - 19 October 2025
RIPE 91, Bucharest, 20 - 24 October, 2025
DevOps Days Detroit, Detroit, 22 October 2025
FRNOG 42, Paris, 24 October 2025
ESNOG, Barcelona, 30 - 31 October 2025
IETF 124, Montreal, 1 - 7 November 2025, Canada
DENOG 17, Essen, 9 - 11 November 2025
EMEA Arista Cloud Builders, Munich, 13 November 2025
AutoCon 4, Austin, 17 - 21 November 2025
France IX Tour, Paris, 27 November 2025, France
CoNEXT 2025, Hong Kong, 1 - 4 December 2025
Industry 🏭
AWS Direct Connect Layer 1 Explained: From Data Centers to Cloud Connectivity if you’ve ever wondered where the xconnnect ends, your TGW starts and the VIF attaches 🤲
Meta CTO explains why the smart glasses demos failed at Meta Connect — and it wasn’t the Wi-Fi but that doesn’t mean the poor Meta Network Engineers won’t be blame forever-more 😭
Amazon ECS announces IPv6-only support means it’s really happening; IPv6-only is now a viable thing in the real, commercial Internet-facing world
br:ac:ee::1(if that’s valid IPv6? We need to learn here…) 🌐Cisco Warns of Actively Exploited SNMP Vulnerability Allowing RCE or DoS in IOS Software which includes Meraki, IOS-XE, NX-OS and even uber-reliable IOS-XR Service Provider gear 🤕
Secret Service dismantles network capable of shutting down cell service in New York is an interesting read into the world of RAN and Cellular threats ☎️
Cybersecurity firm Netskope notches $8.8 billion valuation as shares jump in Nasdaq debut is proof that the SASE/SSE market is about to hot up; watch out Zscaler (also: how do you pronounce this one, scope or cope or…) 🥽
That’s all for this week, but if you have any tip-offs, blogs, events or job posts you’d like us to feature then please feel free to let us know at newsletter@reloadin.net 📮 and we’ll see if we can add them in 💬.