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 [Guide] OPNsense Unifi setup with ipv6

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nicholaswkc
post Nov 3 2022, 02:00 PM

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Dear Connection,
What is the VLAN ID for maxis home fibre? Thanks in advance.

This post has been edited by nicholaswkc: Nov 3 2022, 02:00 PM
PRSXFENG
post Nov 3 2022, 09:15 PM

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QUOTE(nicholaswkc @ Nov 3 2022, 02:00 PM)
Dear Connection,
What is the VLAN ID for maxis home fibre? Thanks in advance.
*
Depending on infrastructure, either 621 (Maxis on TM) or 11 (Maxis on Maxis)
there are also a few more rare ones but one of these 2 should work
Moogle Stiltzkin
post Nov 5 2022, 03:20 AM

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i found a credible answer to what is going on

https://serverfault.com/questions/714890/ip...-work-around-it


basically tmnut gives unifi home /64. at most you can only do interface tracking wan for the lan only using prefix id 0.

but if u want to do more interface tracking for the other vlans, NORMALLY you would do prefix id 1...2...3.. and so. But you can't because you would require the ISP to give like /56 prefix for you to be able to do so (this is my understanding, so correct me if i am wrong)

outside of that, doesn't seem to be a solution for users like myself that have client devices in separate vlans in regards to ipv6 working properly with tmnuts implementation apparently.

But i sort of figured out a solution here

1. don't use guest wifi which separates out to a different vlan. make sure the wifi uses the single lan which was setup in pfsense interface tracking, this will confirm have a reliable ipv6 working without issue

2. use a vpn. i noticed when using my mullvad vpn client on android, ipv6 will work just fine. i don't know the technical explanation for this, just that it works. it's a work around basically.

as to why sometimes my ipv6 works on the guest wifi vlan, i think it could probably be some sort of misconfiguration in vlan which leaks the ipv6 traffic from the lan side is my guess, but i'm not fully sure.


unless someone else knows a working solution i'm not aware of, other than getting the unifi business subscription, or another isp that does provide the require prefix. noticed another user on forum tried to request the required prefix with no luck, so guess thats not an option either.



anyway the only working pfsense config i am aware of to get ipv6 to work, is ans guide. some posted about his guide on their blog
https://advanxer.com/blog/2015/03/configuri...on-pfsense/amp/


but ans updated guide was posted here
https://forum.lowyat.net/index.php?showtopi...&#entry73677223


and i commented earlier what i found didn't work, like the /prefix 56 he uses only applies to unifi busi, not unif home that uses /64

and also the fact that his guide did not mention anything about ipv6 solution for vlan interfaces in pfsense. not his fault because not everyone use vlans in their network setup.

This post has been edited by Moogle Stiltzkin: Nov 5 2022, 03:21 AM
ShinHaruhi
post Jul 27 2023, 08:55 AM

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--------

This post has been edited by ShinHaruhi: Jul 27 2023, 04:23 PM
acbc
post Sep 8 2023, 09:29 AM

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I followed this guide and got the box to work with DiGi Fiber. VLAN is 629. Worked immediately upon plugging the WAN cable.

I'm currently using an old SFF box from Lenovo. It was formerly an office PC with Pentium Dual Core. I opted for the ZFS installation with dual HDDs. If stable, later will migrate to a better spec machine.
ZY2016
post Oct 25 2023, 02:24 PM

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Hi,

Where can i find tech support for SBC unit as new router setup on Unifi fiber?
I'm really noob on PC.

thank you.
kenjixx
post Oct 26 2023, 12:34 PM

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QUOTE(ZY2016 @ Oct 25 2023, 02:24 PM)
Hi,

Where can i find tech support for SBC unit as new router setup on Unifi fiber?
I'm really noob on PC.

thank you.
*
like that getting a good consumer router and start tinkering that first is a good choice.
u messed up that resetting is just a single button press usually
i remember not having a good time after a mess up in settings when tinkering
after getting used to that only decide moving to using SBC as router
karenzayn
post Dec 3 2023, 06:03 PM

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Hi, i've successfully configure OPNsense with IPv6 WAN and LAN, however, it failed IPv4 test, any ideas what's wrong with it?
ahrasis
post May 6 2024, 11:30 PM

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Thank you for sharing. Will try this soon.
timster
post Jul 11 2024, 06:53 AM

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Thanks for sharing this guide. Works well on my fanless n100 6 eth port I got from Aliexpress. Only one issue - the connection lasts less than 24 hours and then the whole unit reboots. Seems to be poor reset related and can’t be fixed in current opnsense version. Anyone else experiencing this?

QUOTE(papyrous @ Oct 11 2021, 01:57 PM)
Set up OPNsense on Unifi and just thought might as well share the process.

user posted image
Go to Interfaces > Other Types  > VLAN
Parent Interface > select WAN port, VLAN tag 500.

user posted image
Go to Assignments > under WAN select vlan500 on (WAN port)

user posted image
Go to [WAN] > ipv4 = PPPoE, ipv6 = DHCPv6. under PPPoE configuration, enter your Unifi username and password.
Scroll down under DHCPv6 client configuration, check
> Request only an IPv6 prefix
> Prefix Delegation Size 64
> Send IPv6 Prefix Hint
> Use IPv4 connectivity
edit NOV 2022

user posted image
Go to [LAN] under IPv6 configuration type > Track Interface.
Track IPv6 interface > select WAN.
to use NDP, check [Allow manual adjustment of DHCPv6 and Router Advertisements]
then go to [Services] > Router Advertisements. select Stateless for Router Advertisements

May have to reboot system to bring DHCPv6 server up and running.

enjoy
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TSpapyrous
post Jul 17 2024, 06:49 PM

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QUOTE(timster @ Jul 11 2024, 06:53 AM)
Thanks for sharing this guide. Works well on my fanless n100 6 eth port I got from Aliexpress. Only one issue - the connection lasts less than 24 hours and then the whole unit reboots. Seems to be poor reset related and can’t be fixed in current opnsense version. Anyone else experiencing this?
*
no such issue for me
qwertyweee
post Mar 10 2025, 05:58 AM

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Hi all, my boss just subscribed to a & got 5 fixed IP from TM Unifi Business with 1Gbps connection. I was able to setup the PPPoe stuff & got internet, just wanted to know if you guys can guide me how to setup the 5 fixed ip addresses?
Moogle Stiltzkin
post Mar 16 2025, 09:42 AM

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QUOTE(karenzayn @ Dec 3 2023, 06:03 PM)
Hi, i've successfully configure OPNsense with IPv6 WAN and LAN, however, it failed IPv4 test, any ideas what's wrong with it?
*
ip4 works for me. did u figure it out?
AsuKi
post Apr 27 2025, 07:46 AM

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banyak sudah tukar itu ini. harap ts update
se@n
post May 3 2025, 01:42 AM

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Followed the guide but not working. I'm using Celcom Fiber. Anyone has a clue?
karenzayn
post May 5 2025, 10:35 AM

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QUOTE(se@n @ May 3 2025, 01:42 AM)
Followed the guide but not working. I'm using  Celcom Fiber. Anyone has a clue?
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Did you set the VLAN ID correct?
se@n
post May 12 2025, 02:37 AM

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QUOTE(karenzayn @ May 5 2025, 10:35 AM)
Did you set the VLAN ID correct?
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Yes, VLAN ID is setup correctly. I'm getting internet but is only on IPv4.
Moogle Stiltzkin
post May 12 2025, 04:46 AM

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QUOTE(se@n @ May 12 2025, 02:37 AM)
Yes, VLAN ID is setup correctly. I'm getting internet but is only on IPv4.
*
did u read the guide for the ipv6 portion here
https://forum.lowyat.net/index.php?showtopi...&#entry73677223

and other user comments on the ipv6 setup
https://forum.lowyat.net/index.php?showtopi...ost&p=106376326


it explains what to set for it to work for ipv6


to get ipv6 to work on pfsense required trial and error to figure it out. ansonlos already did and he shared it, so follow his instructions. thats what i did smile.gif


if ipv6 works it should show here

https://ipv6test.google.com/

https://ipv6-test.com/



This post has been edited by Moogle Stiltzkin: May 12 2025, 04:52 AM
igx0908
post May 21 2025, 09:02 PM

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Hi all, I using OPNsense 25.1 and interface looks different from the setup guide in first post. Can someone share how the latest configuration should look like? Dont want to messing up my network and had to call TM
Dothan
post Sep 27 2025, 03:27 PM

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I am using OPNSense ver 25.7 and Unifi 500 Mbps package.

I believe this is the most up-to-date version of setting up the OPNSense for TM Unifi's IPv6.

Assumption:
You already have a working PPPoE WAN. If not, use OPNSense wizard to assist you to setup the PPPoE WAN.
Your Interface naming might be different from mine. But I hope your understand which interface is meant for WAN and LAN.
If you have setup a bridge for bridging your device ethernet ports traffic like switch, your LAN interface should be your bridge
If your OPNSense device only have 2 ethernet ports setup, then skip Step 2.

Step 1:
In Interface -> WAN -> IPv6 Configuration, select DHCPv6

Same page, Interface -> WAN -> DHCPv6 client configuration portion.
Set Configuration Mode: Basic.
Prefix delegation size: 64.
Tick Request prefix only checkbox.
Tick Send prefix hint checkbox.
Leave both Optional prefix ID and Optional interface ID empty (no value entered)
Click Save button

Step 2 (optional: only application for those setup Bridge)
Interface -> Devices -> Bridge, select the bridge you have setup.
Tick Enable link-local address checkbox
Click Save button

Step 3:
Interface -> LAN -> IPv6 Configuration Type
Select Track Interface

Same page, Interface -> LAN -> Track IPv6 Interface -> Parent Interface
Select WAN.
Leave Assign prefix ID and Optional interface ID empty (no value entered)
Tick Allow manual adjustment of DHCPv6 and Router Advertisements checkbox
Click Save button

Step 4:
Services -> Router Advertisement -> LAN (because you ticked the checkbox in Step 3)
Set Router Advertisment: Assisted
Router Priority: Normal
Source Address: Automatic
DNS Options: up to you whether tick or untick both checkboxes
Click Save button and check the Router Advertisement service has started.

By finishing the above steps, you should have enabled IPv6 for your TM Unifi.
Some devices might not able to get IPv6 address, reboot your OPNSense device should do.

This post has been edited by Dothan: Sep 27 2025, 03:29 PM

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