This is a step-by-step guide to setting up a 2-node WiFi mesh with 2 NETGEAR NIGHTHAWK X4S D7800 AC2600 routers using OpenWrt, with an Ethernet backbone. It’s important to note that while the D7800 is a fantastic router, creating a…
Implementing a 2 or 3-node mesh Wi-Fi network with OpenWrt offers great flexibility and control. The “best” hardware depends on your specific needs, budget, and technical comfort level. Here’s a breakdown of factors to consider and some popular recommendations: Key…
Question I have an old installation of homeassistant in a VM paired with IOTstack in another VM.It is no longer possible to upgrade this setup because it is too many versions behind. I have created a new VM with HAOS…
The Silent Killer of Network Connectivity: MTU Mismatches and PMTUD Black Holes Ever found yourself in a networking nightmare where pings work perfectly, but then SSH sessions hang mysteriously, or large file transfers just die? You’ve checked your firewalls, verified…
Reverse Path Filtering (RPF): Linux and many other OSes/routers implements a security feature called Reverse Path Filtering (RPF), often controlled by rp_filter sysctl parameter (e.g., /proc/sys/net/ipv4/conf/all/rp_filter). Purpose: RPF prevents IP spoofing and helps mitigate certain types of attacks. It works…