Connecting my router to my ONT & ISP

Hi,

I recently bought GL-AXT1800 to replace the one provided by my ISP (MEO/Altice Portugal). My ISP also provides a terminal (ONT) since it is fiber internet.
I am trying to make my new GL-iNet router works with the ONT terminal.

           +-------------+                       +---------------+  
           |             |                       |   Wireless    |  
------------   ONT-SFU   ------------------------|   Router      |  
     Fiber |             |  WAN              WAN |               |  
           +-------------+                       +---------------+
  • I have no idea so far how does those things work (protocols, network, authentication, etc.).
  • I researched the ONT terminal model nothing really useful came up.
  • There are useful information the back of the ONT such as the MAC, EAN, Client Code, Data Code
  • Logging into the admin panel of the router provided by my ISP, I see the GPON standard & IPoE are used, plus the VLAN ID is 12.

I searched on this forum & I see that:

  • IPoE is not yet supported out of the box

Do you need IPoE? It is under discussion, but there is no definite date for development yet.

Also

  • I can’t find the configuration for my current ISP in the OpenWRT ISP configurations database

Ok at that point I start to feel a bit lost & wonder if I might have bought the router a bit too quickly without doing research if it might work in my setup.
Could someone guide me on how to progress in my understanding on how to configure my router?

Many thanks for your help

Who is your ISP? Cutting out the ISP supplied router in a fiber setup is usually not straightforward. You can do a passthrough fairly easily.

Thanks for the quick reply.

My ISP is MEO (Altice) in Portugal.
The only thing I could find is at least this user might have got pretty close to making it work? I am not sure.

My networking skills are quite limited, but is making it so difficult? the use of IPoE, the network configuration? or just the lake of information we usually have with those ISP setup?

If you mean connecting the ONT terminal with the ISP provided router and then connecting the GL-iNet router to the ISP provided one this is what I did as a temporary solution but it is really ugly :frowning:

At least for my ISP there is an authentication piece which you can proxy, but you still have to have the router. Unless you’re running into issues with filling up the NAT table (generally small on most ISP routers) just using IP passthrough is usually the way to go. (Again, at least with AT&T here in the US)

See also: https://www.reddit.com/r/HomeNetworking/comments/gqcb7l/on_att_fiber_ont_can_i_connect_my_router_directly/

in LUCI/Interfaces/Devices
create new device:
device type - VLAN 802.1q
base device - eth0
VLAN id - 12
MAC Addr - MAC from ISP provided router
this will create eth0.12

in Interfaces WAN select protocol DHCP and device eth0.12

restart router and it should work

i have same type of internet conexion except mine vlan id is 911. took me a while to figure it out but it works :wink:

it works perfectly !
many thanks :wink:

1 Like

I am in a similar situation in Spain and this worked for me

@Sergio what you posted works for PPPoE, not for IPoE

@alzhao maybe it’s a good idea to add this workaround into future features or on your support page (new section of how to replace ISP modem/router for Internet conexion with ONT over IPoE and specific VLAN Id). just saying… it will help a lot of people.


in LUCI/Interfaces/Devices
create new device:
device type - VLAN 802.1q
base device - eth0
VLAN id - 12
MAC Addr - MAC from ISP provided router
this will create eth0.12

in Interfaces WAN select protocol DHCP and device eth0.12

restart router and it should work

1 Like

This vlanid should be specific for different operators.

sure. upper post is for @lit.

as a general workaround for IPoE with VLAN id:

in LUCI/Interfaces/Devices
create new device:
device type - VLAN 802.1q
base device - eth0
VLAN id - xxx (your specific vlan id. Eg. mine is 911, @lit is 12)
MAC Addr - MAC from ISP provided router
this will create eth0.xxx (mine is eth0.911, @lit is eth0.12)

in Interfaces WAN select protocol DHCP and device eth0.xxx

restart router and it should work