WIFI NINJAS BLOG

WN Blog 026 – 802.1x & EAP

Hey,  Welcome to our latest blog – this time we will be covering what is 802.1X & EAP!  802.1X is a Port Based Network Access Control, defining 3 roles: Supplicant (station, client device), Authenticator (AP or WLC) and Authentication...

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WN Blog 025 – Hidden SSIDs

Hey! Welcome to our first blog post of 2020! Happy new year to all 🙂 We wanted to kick off this year’s first blog post covering how secure is a Hidden SSID. We have been into a few customer...

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WN Blog 024 – RF Math

Hey! Welcome to our latest blog – this time we are taking it back to some RF fundamentals and more specific – RF Math! Since we started our Podcast & Blog, we have had requests from people to cover...

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WN Blog 023 – Indoor RTLS with WiFi and BLE – Deep Dive

Hey! We’ve been busy lately testing some available RTLS solutions from a few different major wireless players and fell absolutely in love with the topic to the point, where we shake from overexcitement when thinking or talking about it...

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WN Blog 022 – Distance Between 802.11 Radios – How Close Is Too Close?

We have recently come across few production networks, where distance between two APs or APs and a client stations was much closer than I was comfortable with. Natural reaction was to suggest moving radios at least few metres apart....

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WN Blog 021 – Getting Started with Python Coding

Hey! Welcome to our very first blog on our journey to learn some coding. I decided it was finally time to stop burying my head in the sand & to make a start with taking a dive into the...

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WN Blog 020 – Postman Variables

In our previous blog (please start there), we were typing in all the site IDs, WLAN IDs, API authentication tokens & Mist API HTTPS URL manually. It’s no fun, right? Since we’re likely to interact with Mist API using...

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WN Blog 019 – Getting Started with Mist API

Let’s face the truth. We can’t avoid dev stuff in WiFi forever! REST API, Python, JSON, Ansible and whatever else is needed – here we come! It’s time. This is day 1 of our studies! The mission for today?...

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WN Blog 018 – WiFi Design Day 2019 Experience

Hey! I have just recently attended the Ekahau & Open Reality WiFi Design Day 2019 at the ICC in Birmingham and thought I would do a blog post to summarise my experience and thoughts. This was my 3rd year...

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WN Blog 017 – Cisco C9800 – Local Web Auth Config

Hey! Welcome to another one of our Cisco C9800 configuration blogs! This time we will be covering Local Web Authentication (LWA), where guest sessions are managed by the WLC itself. We can authenticate against RADIUS, TACACS, LDAP or local...

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WN Blog 016 – WiFi Tools

Hey! I am putting this blog together to cover some of the wireless tools that we use or are highly recommended in the wireless community. Many of you might already be aware of some of the tools in this...

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WN Blog 015 – Cisco Catalyst 9800 WLC Software Upgrade

Upgrading Cisco Catalyst 9800 software is easy and sleek. You could use all standards protocols to put a new image on the controller: FTP, TFTP, SFTP or HTTPS. Here are the steps: Download new .bin image from Cisco; I...

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WN Blog 014 – Cisco Catalyst 9800 FlexConnect Configuration Guide

It’s simple, right? Sure! Took me a while to figure that one out. Our goal in this post is to demo Cisco Catalyst 9800 WLC FlexConnect Configuration. It’s assumed you’re familiar with all C9800 solution building blocks (we’ve covered...

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WN Blog 013 – Cisco C9800-CL WLC Redundancy HA SSO – CLI and Deeper Dive

Hey! And welcome to another C9800 blog 🙂 Recently, Matt has blogged about Redundancy configuration using GUI and covered HA/SSO operation here. Today, I wanted to do a deeper dive into the topic. Enjoy! Lab Environment: In my lab,...

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WN Blog 012 – Can You Crack 802.1X WPA2-Enterprise Wireless Data?

One of our clients has recently approached me with concerns about their new WiFi network that we were planning to put in. They were coming from a wired-only environment and were not sure if introducing EAP-TLS based corporate wireless...

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WN Blog 011 – Cisco C9800-CL WLC Redundancy HA SSO – GUI and Basics

Hey! Welcome to another one of our blogs on configuring the new Cisco Catalyst 9800 WLC. This time we are going to take you through configuring 2 x C9800-CLs for redundancy HA SSO.  First here is an overview of...

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WN Blog 010 – Cisco Catalyst 9800 Initial Configuration Guide – Central Switching

Finding C9800 stuff hot and interesting? You’re not alone out there! 🙂 After initial C9800 configuration (see this blog) and registering your first AP (our AireOS AP Join Blog is still applicable here) you’re pretty much ready to go!...

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WN Blog 009 – C9800 WLC Guest MAB CWA ISE Config

Hey! Welcome to another one of our blogs on the configuration of the new series of WLC from Cisco the C9800! In this post, I want to go through with you an issue that I ran into when configuring...

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WN Blog 008 – How to Change Cisco CMX GUI “admin” Password

Does this look familiar? Sometimes we forget a password, sometimes it’s set by someone else and they forgot it, left company or are just evil and won’t tell us 😉 Assuming you still have access to  SSH, VMware console...

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WN Blog 007 – C9800 WLC Internal DHCP Server Config

Hey! A quick short blog on some internal DHCP configuration for the C9800 WLC! As we are starting to implement the new generation of the wireless controller for customers, we anticipate that we will stumble over a few gotchas...

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WN Blog 006 – Cisco Catalyst 9800 WLC for Cloud (C9800-CL) Deployment with VMware ESXi

If you are geeky, crazy or just curious to try out first generation of Cisco products, new Catalyst 9800 Wireless LAN Controller, this guide might be useful to you 🙂 Jokes aside, C9800 feels like a solid product that...

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WN Blog 005 – WiFi Ninjas WiFi 6 Network Nomads Meetup

Hey ho! We’ve recently hosted WiFi 6 Network Nomads Event in London at Natilik DSQ, where we discussed real world of WiFi 6 operations, enhancements and testing! Trying to focus on what’s practical and important without sounding like a...

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WN Blog 004 – WiFi 1-5 Modulation & Encoding Techniques

Hey! In this short blog post we’ll share our notes about older modulation techniques used in WiFi (up to OFDM and 256 QAM). To learn more about OFDMA and 1024 QAM (both used in WiFi 6), see our other...

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WN Blog 003 – WiFi 6 Deep Dive & Real World Testing

Hey, welcome to our WiFi 6 deep dive & real-world testing blog. We’ve just hosted a WiFi 6 Network Nomads event with Natilik and put quite a lot of time and effort into preparing for this event, recorded a...

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WN Blog 002 – Wireshark Filters

Both Mac & Matt are currently studying for their final CWNP exam – CWAP! And have been making notes and tips along the way so we wanted to share some with you guys. A lot of these Wireshark filters...

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WN Blog 001 – AP Join Issues with Cisco WLC

So you have just deployed your new shiny Cisco WLCs and you have been waiting for weeks for the cablers to install your APs as per your design and you are sitting there all excited as you can finally...

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