FTTH connection WAN to ONT

[vangelis81]

Hello,
I'd like to connect the WAN port of my OPNsense directly to the ONT of my FTTH, removing the router of my ISP.
In order to do so, my ISP ask the WAN to be configured as follow
VLAN ID 835
COS 0
IPoE

May anyone kindly explain me how to configure the WAN in such way?
thank you
A.

[cookiemonster]

I suggest to look at the examples in the manual. There will be good to figure out the bits that need doing even if there is no exact example for your ISP, but it will give you the steps to set each element up. https://docs.opnsense.org/interfaces.html#isp-configuration
If you have IPoE you probably need username and password. You can only get those or any required authentication credentials from your ISP.