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UDM-PRO and VDSL

Zarget
By Zarget
in Networking
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Hi smart people!

 

I've recently started upgrading my home setup to the Ubiquiti unifi ecosystem, with that I now am the proud owner of a UDM-PRO. Unfortunately living in Australia my area is currently limited to FTTN through Aussie Broadband.

 

I have a NetComm modem that I have in the recent past setup in bridge mode to an EdgeRouter, this took hours to get working originally and I still don't know what magic finally did the trick.

Unfortunately now I'm having trouble setting it up with my UDM.

 

From what I've found this seems to be a common problem with VDSL but none of the steps I have tried so far have worked.

Any suggestions?

 

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It's been a very long time since I've had to deal with ADSL/VDSL but I've always had very good success with DrayTek xDSL modems and setting up 'Half Bridge Mode'. When I went digging years ago they were the most recommended for ADSL but they do have VDSL now as well.

 

The reason for Half Bridge is the DrayTek modem does all the authentication and negotiation for the DSL connectivity then gives over all control of the Ethernet and higher layers over to what would be your UDM-PRO. So all you would have to do is configure an Ethernet WAN port with DHCP (or static if you have static without DHCP) and done.

 

https://www.draytek.co.uk/support/guides/kb-router-as-dsl-modem

https://www.draytek.com/support/knowledge-base/5367

 

P.S. Half Bridge Mode I don't think is an official term, just common phrase/description used at the time I was looking. Not all Bridge types and setups are the same basically.

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2 hours ago, leadeater said:

It's been a very long time since I've had to deal with ADSL/VDSL but I've always had very good success with DrayTek xDSL modems and setting up 'Half Bridge Mode'. When I went digging years ago they were the most recommended for ADSL but they do have VDSL now as well.

 

The reason for Half Bridge is the DrayTek modem does all the authentication and negotiation for the DSL connectivity then gives over all control of the Ethernet and higher layers over to what would be your UDM-PRO. So all you would have to do is configure an Ethernet WAN port with DHCP (or static if you have static without DHCP) and done.

 

https://www.draytek.co.uk/support/guides/kb-router-as-dsl-modem

https://www.draytek.com/support/knowledge-base/5367

 

P.S. Half Bridge Mode I don't think is an official term, just common phrase/description used at the time I was looking. Not all Bridge types and setups are the same basically.

My current modem is a NetComm NL1901ACV, are you suggesting I swap that out? 

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5 hours ago, Zarget said:

My current modem is a NetComm NL1901ACV, are you suggesting I swap that out? 

Only if you really can't get it working on that NetComm.

 

I assume you have configured your router something similar to this? http://18.162.135.6/faq/nf8ac-bridge-mode-setup-guide

 

Do you have your ISP VPI/VCI and VLAN settings? What was router EdgeRouter WAN port configuration?

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1 hour ago, leadeater said:

Only if you really can't get it working on that NetComm.

 

I assume you have configured your router something similar to this? http://18.162.135.6/faq/nf8ac-bridge-mode-setup-guide

 

Do you have your ISP VPI/VCI and VLAN settings? What was router EdgeRouter WAN port configuration?

Yes I have followed those steps and yes I am using the ISP settings. Aussie Broadband (My ISP) doesn't use VLAN.

My Edgerouter was on DHCP for it's WAN port.

 

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49 minutes ago, Zarget said:

Yes I have followed those steps and yes I am using the ISP settings. Aussie Broadband (My ISP) doesn't use VLAN.

My Edgerouter was on DHCP for it's WAN port.

 

Hmm, I can't think of a reason why it wouldn't be working then. The UDM configure WAN port just doesn't get an IP address?

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Just now, leadeater said:

Hmm, I can't think of a reason why it wouldn't be working then. The UDM configure WAN port just doesn't get an IP address?

The on screen display shows no internet detected and the ui will often show the ip of the modem in the WAN port but nothing else.

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Thank you for your help, turns out the issue was on the ISP end. It took them a while to actually identify it but all working now!

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