[OpenWrt Wiki] Parental controls
openwrt.org › docs › guide-userDec 05, 2021 · Follow: Filtering traffic with IP sets by DNS Since OpenWrt in a typical setup with a LAN and WAN zone does the name resolution and the firewall at the same time, all information is there to match domain names, their current IPs as they are handed out to the LAN-hosts and act accordingly in the firewall.