description OpenWrt Build for Captive Portal Management Overview
This build is pre-configured for running a captive portal, essential for public Wi-Fi environments (hotels, cafes). It integrates user authentication mechanisms, bandwidth throttling per user, and session tracking. It streamlines the process of managing temporary, controlled internet access for large numbers of guests.
help OpenWrt Build for Captive Portal Management FAQ
Which captive portal software does an OpenWrt build like this typically use?
The main options in the OpenWrt package feeds are OpenNDS and nodogsplash, with the older coova-chilli still floating around. OpenNDS is the actively developed successor to nodogsplash and is the usual choice for new deployments.
What kind of hardware do I need to run this captive portal build?
OpenWrt runs on inexpensive routers like the TP-Link Archer series, GL.iNet travel routers, or even a Raspberry Pi 4 with a USB Ethernet adapter. Anything with 128MB+ of RAM handles a small café or lobby load comfortably.
Can I limit bandwidth per guest user?
Yes. OpenNDS supports per-client download and upload rate limiting in its configuration, often combined with OpenWrt's SQM/QoS features for traffic shaping. This keeps one guest streaming 4K video from killing everyone else's connection.
Can technically savvy guests bypass the portal?
Basic MAC-address authentication can be spoofed, so the build relies on session timeouts, HTTPS interception checks, and strict firewall rules. OpenNDS's FAS (Forward Authentication Service) feature also lets you deploy custom login pages tied to vouchers or codes.
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