› UKTH forums › 🛜 Wireless Routers & Modems › ASUS & Wireless › ASUS Fiber Modem Hi, I have a question to UK Sentinel if I may When or if ASUS will make specifically designed Modem for Fiber optic connection like this one from AVM https://en.avm.de/products/fritzbox/fritzbox-5530-fiber/...
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UK Sentinel.
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- August 3, 2024 at 9:07 am #32999
What I have read in Germany you will have to register your ONT as well by your vendor, but they have to do so by regulatory.
Fritzbox used in Germany will block change of MAC-address or ID (to the one used on previous ONT), this has been changed with 7.50 firmwares I think.
International versions still allow this change.You need to login in order to vote
August 3, 2024 at 12:13 pm #33000Yes in Germany you need to register ONT Modem (ID Serial or Modem ID) and OLT with ISP through a special link given from your ISP, the same way as in UK.
There is a way to reprogram (clone) ONT’s ID into GPON module and use it with other routers such as ASUS, but this process is very difficult for me, if ASUS allowed in GUI to change SFP module’s (GPON) parameters it would be super.
For now the simpliest is using ONT unfortunately.
Here is some interesting Information:
https://www.youtube.com/watch?v=7RZ6JtjHBfo
https://www.youtube.com/watch?v=yD8aq4KSWko
https://github.com/Unifi-Tools/UFiber.Configurator
https://www.amazon.de/TELEKOM-DEUTSCHLAND-Digitalisierungsbox-Glasfaser-Modem/dp/B0984RK4SB
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August 3, 2024 at 1:53 pm #33002It was interesting to watch the videos and see that for Fritz!box you can enable the inbuilt Packet capture utility by simple going to ….
192.168.178.1/html/capture.html
At least it is possible to use a third party GPON module but does require, packet capture, packet analysis (Wireshark) and some dedicated extra hardware (media converter) etc. etc. and is technically not ‘authorised’
Alas I do not own the RT-BE88U so cannot see the options the UI has for configuring the GPON SFP module, if any ? but will see if ASUS have any plans in this area

In a completely sane world, madness is the only freedom (J.G.Ballard).
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August 4, 2024 at 9:21 am #33007Just noticed the ASUS RT-AX89X also has an SFP+ port also
https://www.asus.com/uk/networking-iot-servers/wifi-routers/asus-gaming-routers/rt-ax89x/
In a completely sane world, madness is the only freedom (J.G.Ballard).
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August 4, 2024 at 9:57 am #33008SFP port doesnt mean that all SFP-modules will work.
The chipset behind is limiting which modules are supported.
E.g. Fritzbox 5690pro can handle only PON/AON-modules and no XGS-PON.So you will have to inform yourself which modules are supported!
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August 4, 2024 at 12:14 pm #33009
In a completely sane world, madness is the only freedom (J.G.Ballard).
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