As a lot of hackers in France, hanging out on https://lafibre.info, people are interested in owning their hardware and software from the fiber up to all the end devices connected on the network.

My ISP, Orange provides an integrated ONT with the Box since the Livebox 5 (which I have). Some people got the support to register their ONTs. Alas I didn't.

But some people mentionned a specific Fiber SFP from https://leolabs.pl which can present itself as an already registered SFP from Orange.

I'll let other people online show how to connect and configure the ONT (see https://chochol.io/en/computer-networking/how-to-configure-a-leox-gpon-ont-module-on-a-mikrotik-router/).

I used the information from https://lafibre.info/remplacer-livebox/trouver-la-valeur-hw_hwver-pour-leox-lxt-01g-d-lxt-010h-d/ for the configuration.

I only needed to set :

flash set GPON_SN XXXXXXXXXXXX
flash set PON_VENDOR_ID XXXX
flash set HW_HWVER SMBSSGLBF121

You may need to look into the 1G / 2.5G settings. I have mine setup in 1G only anyway.

The SN is the serial number, available either in the box settings or the label on the physical box.

The PON_VENDOR_ID corresponds to the first 4 characters of the SN. ALCL stands for Alcated for instance.

We need to connect our SFP to our SFP ethernet media converter (I have a TP-Link MC220L) and connect it to the port with a green line on the box.

The box will take a few minutes to get into connected mode (diag gpon get onu-state state 5), so you can get a coffee in the meantime.

It should boot okay and once this goes into state 5, the box will supply the credentials as PPPoE.

Works fine, data rate seems to work fine. The SFP seems a bit hot to the touch but that seems like something that's common from a quick googling so that's look okay.

Next step : replace the box with their weird authentication scheme!