That would be cool. What if we put some newer lantiq DSL chipsets into the openwrt one board, via some PCI module or something? I dunno people does a lot of weird things with those bpi or raspberry pie boards or whatever. Is that possible? For example, SFP. Isn't there a SFP-like translator for VDSL?
Have you found a VDSL module somewhere ?
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Why no cheap 5g module...
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https://www.westercom.eu/en/sfp-optical-transceivers/1056/advantech-sfp-vdsl.html?srsltid=AfmBOoqiaH5mgK8uQPGlcI8I4PPUFlrsJ_UhftvsRVjLPF4zTCcvkb52
The vdsl modules do exist.
But the thing with SFP is that it is plug and play, if you have it, connect it and it works.
There is never any drivers for SFP modules since they are simply ethernet multi connector so it is the module responsibility to make a working internal ethernet connection of the whatever external input.
The only thing OpenWrt do is to include the phy in the dts setup to get a eth/lan connection for the sfp connector.
The other thing to do is to make the hot plug and play working, if not working a router reboot will be required if connecting the sfp module.
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VDSL sfp modules do exist, but last I heard they get very warm.
Never really experienced a cold SFP module.
Coldest is the RJ45 modules but they doesn’t really do anything, they are pretty much only straight in-out modules with the ethernet transformers.
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Oh agreed, but I don't see the point of a VDSL sfp module when a cheap VDSL bridge modem router is usually a third of the price.
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If you have built up your network hardware as a small business network you probably don’t want a useless designed plastic box without possibility to mount in 19” rack and you have sfp connections available, for example.
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But they always were extreme niche products, and the supply/stocks seems to have severely diminished... I take it the market was not really all that interested? And or that market is shrinking with the move from copper to fibre...
300 Euro is a steep price to pay to avoid a separate modem unit...assuming they can deliver...
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a modem unit that can be bought for ~10€ at the right time and place.
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But then all traffic goes from that vdsl modem, right? I dont like commercial vdsl modems, i like openwrt freedom and privacy.
Although i heard from a friend you can just use that modems vdsl capability, but assigning ip's and other stuff is maintained by an openwrt router, which is then much safer. He plugs cable into wan port of vdsl modem, then to router? I dont know exactly.
If you know this can someone explain how to do this? I am not talking about normal AP stuff. In this example all traffic is done on the openwrt router, vdsl modem is just translating vdsl signals, then sending to openwrt router.
It's just like you think. You have a modem connected to the socket on your wall via RJ11 or whatever. You then connect an ethernet cable from the modem into the OpenWRT router's WAN port.
If you have an all in one modem/router they commonly have a "modem only" or "bridge mode" that just converts the signal and nothing more leaving everything to the OpenWRT router.
I thought we talk business use? There I would expect a certain hesitance in buying secobd hand gear, but sure dsl modem/modem-routers often are dirt cheap, especially in countries sctively switching to ftth.
Dunno, OP mentioned the RPi, it doesn't sound very business:y ...
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I might have been confused about the OP's scope, would not be the first time (or last 
)
Alas, popular brands like AVM's FritzBox routers do not offer a "pure modem" setting...
Well, to say in nicely.
Anything with dsl in the name and anything with copper telephone line or RJ11 as connection isn’t really the future in internet or network connections.
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Just to be sure, is it done like this? VDSL modem's LAN port to the openwrt router's WAN?
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Yes that would be correct.
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