VDSL2 Modem for Ubiquiti Dream Machine on FTTN

Good morning all.

I'm not overly versed on network equipment and I'm looking to get a UDM. I have FTTN and I found I need a VDSL capable modem to run from the wall to the UDM.

Is this correct and can anyone point me in the direction of a good modem to get for this purpose?

Thanks heaps!

Comments

  • +2

    A UDM or a UDM Pro?

    If a UDM Pro, I've just bought this.

    Plugs into the SFP port and you go from the phone jack in the wall to the modem. Works well.

    If you have a UDM without and SFP port. Any modem/router from an ISP in Bridge mode will do the job.

    • Interesting, I'm the process of planning out my network around a UDM Pro and didn't realize these were a thing. I already have a modem that I was going to set up in bridge mode but this seems like a nicer solution. Is there any additional benefit to it?

      • Not particularly. I just didn't want to add another box that required at powerpoint. This is a really clean solution. Just plug and play. Not set up required - ISP is Aussie BB.

        • +1

          Awesome, yeah it's definitely a much cleaner solution. Will be adding this to the list, cheers!

    • I've heard these work well, but have also heard to keep watch of the temperature of the SFP — appreantely they get hot.

      • Hot is an understatement… these things run like lava…
        Source: I have one

        • I read this as well and was prepared for it, but mine is not hot at all. Is there a particular use case where yours gets hot? Heavy load? Maybe my weedy 30mbps down isn't enough to trouble it.

  • +1

    If unsure, I'd probably just go with one of the modems that your ISP supplies/recommends. That way if things go wrong their tech support will not come back with "we don't support that".

    • +1

      Yeah I second this, bridging them is the way to go. I also setup a schedule on my bridged tp-link to reboot every 7 days, seems to keep the service more stable.

    • You're going to bridge it anyway, so it still wont show as something they support.

      • The ISP I’m with wouldn’t do that 😊

        • Which ISP supports Bridge mode in its all in one modem/router?

          Barest minimum you'd have to re-set it back to router mode for them to see anything but the connection stats.

  • I have a Draytek Vigor 130 in bridge mode for the same setup you're looking for. Was simple to setup and seems it was designed with the intent of being used as a bridging modem

    Hope this helps

  • +2

    That Proscend VDSL2 SFP Modem is cool, I didn't realise that was an option when I was looking for the same functionality.

    I have a Telstra Smart Modem Gen 2 DJA0231 set to bridge mode and it works well, no double NAT and easy to setup. Plus it can be flashed with custom firmware to unlock further functionality.

    There's plenty of DJA0231s listed on the usual marketplaces for ~$50, which makes them an attractive alt to the Proscend except that I'm sure they're more power hungry. If it's a long term solution you're looking for I'd go with the Proscend.

    • +2

      The power consumption of a Smart Modem in Bridge mode (so SoC at idle and WiFi powered off) is going to be well less than 12W (12V @1A)
      Even assuming 12W, over the course of the year that's around 100kWh/year, so ~$35/year max

      That's at least 3 years "free" power (consuming the ~$100 price difference) even before factoring the power usage of the Proscend.

      It's unlikely that across the lifespan of the UDM or Modem that excess Power consumption would exceed the upfront price difference.

  • +1

    Purchase a VDSL2 modem that supports SOS and ROC. Some VDSL2 modems require a firmware update to support SOS and ROC while others don't.

    VDSL2 modems with full noise support (SRA/ROC/SOS)

  • +4

    Telstra Smart Modem.
    Cheap, readily available, high quality, fully NBN compatible, Broadcom chipset for best connection speed and stability, and capable of Bridge Mode.

    Put it in Bridge mode and connect one of the LAN Ports to the WAN port of the UDM.

  • +3

    G'day guys

    Thanks for all your responses, I think I'm well and truly set.

    It looks like my options are

    UDM
    - Telstra Smart Modem
    or
    - ISP supplied modem/router in bridge mode

    UDMP
    - The above
    or
    - Proscend VDSL2 SFP Modem, keeping an eye out for heat.

    Thanks all!

    • +1

      The Proscend really does run super-lava hot, I also had to do a firmware update on mine (2yrs ago now) to support SOS & ROC protocols to run via NBN. But all new purchases should be fine.

      NBN has more detail on required modem support here:
      https://www.nbnco.com.au/learn/device-compatibility/vdsl2-mo…

      Pretty much anything recent should be fine.

      • Doesn't bode well for its longevity.
        Scorptec specs in the link above say it's 2.1W only, that shouldn't be so hot. Especially for a device with an all metal body that should sink heat pretty efficiently.

Login or Join to leave a comment