Before changing any settings, gather the necessary information and prepare your hardware to avoid losing your internet connection.
The ZXHN F689 is a modern, high-performance GPON terminal that includes a 4-port Gigabit Ethernet switch, dual-band Wi-Fi (2.4GHz and 5GHz), and full VoIP phone support. On its own, it's a complete home networking solution. By default, your ISP configures it in "Router Mode." In this mode, the F689 is a "one-stop shop" that performs multiple network functions at once:
You must remove or disable the previous Route connection that was used for the ISP internet connection. If two connections (one route, one bridge) exist, it can cause conflicts. Step 4: Configure Port Binding Navigate to > WAN > Port Binding . Select the Bridge WAN Connection you just created.
Look at the primary navigation tree located at the top or left side of the dashboard. Select or Internet , then click on WAN or WAN Connection . Step 2: Clear or Edit the Existing Connection
Scroll down to the section. This links the newly configured bridge circuit to a physical hardware port on the back of the case. Zte F689 Bridge Mode
If the "Bridge" option is :
Enabling Bridge Mode on the (typically an ONT/Gateway provided by ISPs like Claro) allows you to bypass the device's internal routing and use your own high-performance router. This setup eliminates Double NAT
By following this guide, you strip away the bloatware, eliminate double NAT, and hand the reins over to your own hardware. Just remember the golden rule: Write down your PPPoE credentials and your original VLAN ID before you delete anything.
Change the setting from to Bridge (or IP Routed to Bridge depending on your specific firmware version). By default, your ISP configures it in "Router Mode
Toggle the state switch to Disabled or uncheck Enable DHCP Server . Click Apply .
ZTE F689 Bridge Mode: A Comprehensive Guide
Bridge mode disables the local IP management on the LAN port unless you set a static management IP. Solution: You cannot access 192.168.1.1 via your router (because your router is now on a different network). To get back into the ZTE:
In bridge mode, your secondary router may need a specific VLAN ID (e.g., 881 for some providers) to authenticate with the ISP. Select the Bridge WAN Connection you just created
Check the Binding Options to ensure the bridge is assigned to the correct LAN port (e.g., LAN1 or LAN3). Click or Apply . Step 3: Remove Old WAN Configurations (Crucial)
Some ISPs push remote configuration updates that overwrite user changes. If your bridge mode configuration disappears, you will need to contact your ISP and ask them to remotely put your ZTE F689 into "Bridge Mode" from their central office.
If true Bridge Mode isn't available, use IP Passthrough (DMZ). This isn't perfect (it still involves Double NAT), but it works for most users.
Locate the main menu, which is usually at the top or left side of the screen. Click on or Network . Select WAN or WAN Connection from the submenu. Step 3: Modify the Connection Mode
: Set this to Tag and enter the VLAN ID you noted in Step 3.
Users frequently encounter issues when enabling bridge mode on the ZTE F689. Here are the most common problems and solutions: