this post was submitted on 23 Feb 2026
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My current internet setup is like this (which is common for most people).

fiber line from ISP <-> ISP fiber modem <-> Personal wifi router <-> switch

This is working fine with no issues. But I need to power two devices. I want to reduce this to a single device.

fiber line from ISP <-> Modem+Firewall PC <-> Switch <-> AP1,AP2...

From my initial research, what I need is an SFP module which can be attached to a PC which supports SFP. OPNsense should be able to handle most SFP modules.

What is the community's take on this? Is this worth the effort? Can I find a mini-PC which supports SFP? Will it be cost effective?

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[–] chocrates@piefed.world 17 points 8 hours ago (2 children)

Just use the fiber modem, it's gonna be a huge pain and fight with your ISP to use your own modem likely.

[–] DaGeek247@fedia.io 3 points 5 hours ago

It very strongly depends on which ISP they have. There's a few that make it easy. There's a much larger number that can be hacked by a competent pc person (which I've done). There's also a small amount who have worked to make it impossible / hard to do, and don't have any public info on the process.

My ISP is att fiber, and all I had to do was change the vlan id on the outgoing side and match the ip settings to make it work. I used the guides from https://pon.wiki/ to do it, and the discord is also incredibly helpful.

Of note, this used to be impossible / very difficult so you'll still find forum posts saying it can't be done. However, a couple nerds have changed that over the past two years so make sure your info is up to date before deciding it can't be done for your specific setup.

[–] xavier666@lemmy.umucat.day 1 points 5 hours ago

I checked this route but fiber modem are currently rare. There are only few WiFi 6/7 routers which accepts fiber. My ISP on the other hand is quite friendly. They initially provided me with a fiber modem, which sucked as it was quite old, so I told them to give me a simple modem as I have my own ethernet wifi router. They replaced it the next day.