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Openwrt Dns Mesh Setup

OpenWrt encrypted DNS and mesh configuration patterns. Use when setting up https-dns-proxy, configuring WDS WiFi backhaul, or implementing DNS encryption on OpenWrt.

krmorehead 1259a1b 1.2 KB Updated
Coding & Dev Tools

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OpenWrt DNS and Mesh Setup Rules

Encrypted DNS Integration

  1. https-dns-proxy on OpenWrt auto-configures dnsmasq on install: it adds itself as upstream DNS server and restarts dnsmasq. No manual dnsmasq configuration needed for basic DoH setup.

  2. The configure task only needs to:

    • Install https-dns-proxy (with retries per network restart rules)
    • Optionally configure specific DoH providers via UCI
    • Verify DNS resolution works through the proxy

Mesh Networking Setup

  1. Mesh satellite nodes use WDS AP/STA for wireless backhaul without requiring PCIe passthrough.

  2. The iw package must be pre-installed in custom image for namespace-aware WiFi detection via netlink.

Container Networking Pattern

  1. Container networking follows host topology:
    • LAN hosts (router_nodes, lan_hosts) → OpenWrt LAN subnet (10.10.10.x), LAN bridge
    • WAN hosts → private NAT bridge (vmbr_ct), 10.99.{host_id}.{offset}/24, DNS 8.8.8.8
    • WAN containers are isolated on per-host /24 subnets — no IP collision risk

krmorehead/vm_builds/tree/main/.agents/skills/openwrt-dns-mesh-setup commit 1259a1beaf

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