OpenWrt In Action

OPENWRT IN ACTION
The Complete Practical Guide to Routing, VLANs, Firewalls, Wi-Fi, WireGuard VPNs, Network Security, QoS, Automation, Troubleshooting, and Advanced Linux Networking

Take full control of your network with OpenWrt in Action, a practical, hands-on guide to configuring, securing, optimizing, and troubleshooting modern OpenWrt deployments.

Go beyond basic router configuration and learn how to build reliable networks using advanced routing, VLANs, DSA, firewall4, nftables, secure Wi-Fi, WireGuard VPNs, multi-WAN, QoS, automation, monitoring, and Linux networking tools.

Inside, you'll learn how to:
• Install and manage OpenWrt confidently
• Configure IPv4, IPv6, DHCP, DNS, routing, NAT, and policy-based routing
• Design secure VLANs and segmented networks
• Build firewall policies with firewall4 and nftables
• Deploy WireGuard client, server, and site-to-site VPNs
• Optimize Wi-Fi, SQM, CAKE, and network performance
• Automate tasks with Shell, UCI, ubus, procd, and Cron
• Monitor, diagnose, and troubleshoot network failures
• Build customized OpenWrt firmware
• Configure multi-WAN, failover, and advanced connectivity
• Secure home, small-office, and homelab environments
• Perform backups, upgrades, recovery, and disaster recovery

The book also includes a comprehensive OpenWrt 25.12 command and UCI reference, networking and firewall references, WireGuard and Wi-Fi quick references, troubleshooting playbooks, deployment checklists, and an OpenWrt terminology glossary.

Whether you are a Linux administrator, network engineer, DevOps professional, IT professional, or homelab enthusiast, this guide gives you the practical knowledge needed to move from basic configuration to confident OpenWrt administration.

Stop treating your router as a black box. Learn how OpenWrt works, secure your network, solve problems systematically, and build a networking platform you can actually control.