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When “Pre-Installed OpenWrt” Isn’t Plug-and-Play

  Lessons Learned After Finally Configuring a Raspberry Pi CM4 Mini Router (Bought in 2022) Product Mini Router built with Raspberry Pi Compute Module 4 Dual Gigabit Ethernet NICs 4GB RAM / 32GB eMMC Pre-installed OpenWrt Compact form factor, fanless, low power Background: A Device That Waited Its Turn I bought this device back in 2022 . At the time, it looked like the perfect small router: Raspberry Pi Compute Module 4 Dual Ethernet ports OpenWrt already installed No SD card required thanks to eMMC But like many homelab projects, it ended up sitting on a shelf . Fast forward to today — with more networking experience, a clearer home network plan, and a real need for a flexible router — I finally decided to configure it properly. That’s when the real journey started. What I Expected (Even in 2025) Even knowing this wasn’t a consumer router, I still expected: Plug WAN into my upstream router Plug LAN into my laptop Access 192.168.1.1 Hav...
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Project #1 Ubuntu 2015 Idea!

I'm trying to access my information from my Android on Ubuntu through MTP and I can't. There're several solutions on the forum, but I can't . So I decided to connect ssh to my phone. Problem #1 appears. I forgot the arguments of the nmap tool :(

After searching on the web I find then.

For getting all the ip address of the devices connected to my network

nmap -sP 192.168.0.1/24

For getting the OS and more information

nmap -O 192.168.0.0/24

Cool, but what's Project #1 Ubuntu? Well I just thought it will be cool to have a small gadget for getting this information, instead of using the CLI. So the project will consist on developing a gadget for getting this information. I started with Step #1 Get the idea, Now I will begin working on this idea, and let you know how it goes.
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Getting Docker Syntax In Gedit

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