This guide explains how to configure a TOZED ZLT S12 PRO router running OpenWRT to receive internet via a LAN (Ethernet) cable and broadcast that internet connection via Wi-Fi, effectively acting as a repeater or access point.

🧰 Requirements

  • TOZED ZLT S12 PRO router with OpenWRT installed
  • LAN cable with internet connection (Static IP configuration)
  • A computer connected to the router (via LAN or Wi-Fi)

🌐 LAN Network Configuration

Static IP Details (provided by your upstream network):

IP Address     : 10.50.52.22  
Subnet Mask    : 255.255.255.0  
Default Gateway: 10.50.52.254  
DNS Server     : 10.50.2.254

⚙️ Step-by-Step Setup

1. Connect to the Router

  • Connect your computer to the OpenWRT router via LAN.
  • Open your browser and visit: 
http://192.168.1.1
  • Login to the LuCI (OpenWRT web interface).

2. Create a New WAN Interface (LAN as WAN)

  1. Navigate to: Network > Interfaces
  2. Click: "Add new interface..."
  3. Configure as follows: 
Name       : wan_lan  
   Protocol   : Static address  
   Device     : eth0 (or your LAN port device)
  1. Under General Settings, enter: 
IPv4 address: 10.50.52.22  
   Netmask     : 255.255.255.0  
   Gateway     : 10.50.52.254  
   DNS         : 10.50.2.254
  1. Save & Apply

3. Configure Wi-Fi as Access Point

  1. Navigate to: Network > Wireless
  2. Edit the Wi-Fi interface and configure: 
Mode       : Access Point  
   Network    : wan_lan  
   SSID       : (Your Wi-Fi Name)  
   Encryption : WPA2-PSK or WPA3  
   Password   : (Your password)
  1. Save & Apply

4. Firewall Configuration

  1. Navigate to: Network > Firewall
  2. Ensure:
    • wan_lan is assigned to the WAN zone
    • LAN → WAN forwarding is allowed

If unsure, verify:

LAN (Zone): Input: accept | Output: accept | Forward: accept
WAN (Zone): Input: reject | Output: accept | Forward: reject

And in Forwardings:

Allow forward from lan to wan

5. Finalize & Test

  1. Connect the internet-enabled LAN cable to the correct Ethernet port.
  2. Connect a device to the configured Wi-Fi network.
  3. Verify internet access.

Optional command-line test:

ping 8.8.8.8
ping google.com

✅ Result

  • The OpenWRT router uses the LAN port to receive internet using a static IP.
  • The router broadcasts Wi-Fi to clients using the internet from that cable.
  • You can access OpenWRT's interface via: 
http://10.50.52.22