UniFi USG direct to internet

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uvprotector

7 posts

Wannabe Geek

#304657 24-May-2023 19:50

Hi,

I have a UniFi USG-3P, US-24-250W switch, CloudKey 1, spark modem HG659b. Also recently purchased Synology 723+.

In order to connect to the outside world synology noticed there were 2 modems and suggested to turn the spark modem into Bridge mode, which does not work.

Question is can I remove the spark modem and connect the USG direct to the fiber modem?

Spark suggests these settings but cannot find all these specific settings in unifi interface

Operating mode: MDI/MDIX
PPP protocol: PPPoE
PPP username: user@spark.co.nz
PPP password: password
PPP auth type: PAP
PPP mode: Always on (dial on demand disabled)
Encapsulation: 802.1Q
PCP marking: 0
VID (or VLAN): 10
MTU: Auto or 1500

Can anyone help.

Thanks

l43a2

1779 posts

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#3079472 24-May-2023 20:54

connect the ONT to the wan port on the USG and it should work fine (I have this setup)

josephhinvest

1543 posts

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#3079473 24-May-2023 20:55

This is similar to my setup and yes, my USG Pro is connected directly to my ONT. I’d have to check the settings when I get home but it wasn’t too tricky. I’m also on Spark fibre.

Cheers,
Joseph

uvprotector

7 posts

Wannabe Geek

#3079480 24-May-2023 21:09

Thanks for your replies

Mehrts

1063 posts

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#3079565 25-May-2023 11:00

@uvprotector Welcome to GZ.

The "fibre modem" that you mention is basically a media converter. It converts an optical signal to an electrical one which you can then use to connect to your router WAN port.

It's called an ONT (Optical Network Terminal), and you can find more info about it on the Chorus website.

The second "Spark modem" is the magic all-in-one box that contains a modem, router, firewall, DHCP server, switch, and wifi access point.

ISP's call them modems, however they're not actually carrying out any modem duties while connected to an ONT, as the ONT is technically a modem of sorts. Here at GZ, there's more of a tendency to call them a router.

Your USG simply takes place of the Spark box's router & firewall duties etc. You then offload the switching and wifi stuff to other dedicated hardware.