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Bridging with a Telecom Fiber Optic Router

Fiber optic splice closure knowledge brief Published 11 Jul 2022

Prepared for preliminary research by the RIVO OPTICAL knowledge desk. Confirm cable count, splice capacity, sealing class, tray layout, protection sleeves and installation requirements against current standards and product documentation.

Bridge mode allows your fiber optic ONT/ONU to pass the internet connection directly to your personal router, eliminating double NAT and giving you full control over your network.Understanding the ONT/ONU

A fiber optic router setup typically involves an Optical Network Terminal (ONT) or Optical Network Unit (ONU), which acts as the interface between the fiber optic line from your ISP and your home network . The ONT/ONU converts the light-based fiber signal into an electrical Ethernet signal that your router and devices can use . Many ONTs also include routing, Wi-Fi, and firewall functions, but these can limit performance if you have a high-end router.

What is Bridge Mode?

Bridge mode is a configuration that disables the routing functions of the ONT/ONU, turning it into a simple pass-through device . In this mode, the ONT/ONU focuses solely on converting optical signals to Ethernet and passes the connection directly to your personal router. This setup allows your router to handle all network management tasks, including:

  • DHCP and NAT
  • Wi-Fi management
  • Port forwarding and firewall rules The main advantage is eliminating double NAT, which can cause issues with online gaming, VPNs, and remote access .
How to Set Up Bridging
  1. Verify your hardware: Ensure your ONT/ONU supports bridge mode and your router has a WAN or SFP port compatible with fiber input .
  2. Connect the fiber: Plug the fiber optic cable from the wall outlet into the ONT/ONU.
  3. Enable bridge mode: Access the ONT/ONU's admin panel (usually via a web browser) and enable bridge mode. This may require ISP credentials or support .
  4. Connect your router: Use an Ethernet cable to connect the ONT/ONU's LAN port to your router's WAN port.
  5. Configure your router: Enter ISP credentials if required, set up Wi-Fi, and configure any firewall or port forwarding rules .
  6. Test the connection: Ensure devices connected to your router have internet access and check for reduced latency and improved performance.
Benefits of Bridging
  • Lower latency and improved stability for gaming and streaming
  • Full control over network settings and advanced features
  • Simplified network topology, avoiding double NAT issues
  • Flexibility to use high-performance routers for better Wi-Fi coverage and security By bridging your fiber optic ONT/ONU to a personal router, you maximize the performance of your network while maintaining the reliability of fiber internet.

Bridging with a Telecom Fiber Optic Router - RIVO MULTITRADE OPTICAL SYSTEMS [PDF]

Bridging with a Telecom Fiber Optic Router

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This reference is intended for preliminary fiber optic splice closure research. Compatibility, splice capacity, sealing class, tray layout, protection sleeves, installation methods, test limits and applicable standards must be verified for the specific project.

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