UFiber GPON - ONU Router Mode


This article explains the features available when enabling Router Mode for UFiber ONUs. 

Router Mode requires OLT firmware 1.1.0 or higher and ONU firmware 2.0.1 or higher.
Devices used in this article:

Table of Contents

  1. Introduction
  2. Steps: How to Enable Routing Mode
  3. Related Articles


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Enabling Router mode will allow the UFiber ONU to perform NAT and DHCP. The current firmware release supports IPv4 NAT (IPv6 support will be added in a future release). Many different devices can be connected to an ONU to provide connectivity and features for your users. See UFiber GPON - Getting Started for more detail on different devices that can be connected to the ONU. Router mode allows the ONU itself to be used as a router to perform simple NAT and DHCP functions, eliminating the need for a separate router connected to the LAN port of the ONU.

Steps: How to Enable Routing Mode

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GUI: Access the UFiber OLT Web-Management Portal (GUI).

ONU Profiles > +Add Profile 

Name: RouterProfile
Admin Password: <UniqueSecurePassword>
Mode: Router
WAN VLAN: 4063
WAN mode: DHCP client
Primary DNS:
Secondary DNS:
Provision LAN: <checked>
LAN address:
DHCP server: <enabled> 
DHCP pool start:
DHCP pool stop:
Lease time: 86400
DNS proxy: <unchecked>


The settings above will configure the OLT to provision an ONU assigned with profile "RouterProfile" so that the WAN uplink address on the ONU will obtain an address with DHCP on VLAN 4063 (default VLAN in this example). It will also provision the ONU so a device connected to the LAN port on the ONU will receive an address of 192.168.44.x, a gateway of, and DNS server of and

NOTE: The WAN VLAN ID must be a VLAN ID that is included on the SFP+ Uplink port. This is explained in more detail in the SFP Uplink Configuration section of the Initial Configuration Guide.

Related Articles

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UFiber GPON - Getting Started

UFiber GPON - Initial Configuration

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