Hi!
Have here a salesman stalking me with Telekom digging our street and placing fiber. Connection to the building is free only for the inital digging, if I book a fibre later, I would have to pay for connecting house with the fibre in the street (estimated cost some 800.- € I guess).
Question to me (besides no real use case for GBit and 150 MBit same monthly rate as for DSL with 150 MBit) is, as we have in this one-family-house two separate telephone numbers (different owners, but only one cable comming in, built in the early 1970ies), one analog, one DSL (both run by Deutsche Telekom):
- Is it possible to keep the DSL line (150MBit) and order fiber only for the analog phone number? Or will Deutsche Telkom kill off the old cable DSL when a fibre is installed?
Moreover:
- Have no experience with Deutsche Telekom fiber, will it be ipv6?
- What kind of termination for the fiber is usual? Do I need a modem, if I don't want to rent any Deutsche Telekom hardware at funny monthly rates?
Any experience with Deutsche Telekom on that?
Telekom regularly delivers a single public IPv4 address and a /56 for IPv6. Both dynamic for consumers, fixed when you have a business contract.
You need an ONT ("fibre modem") which they will happily sell you for a reasonable one time fee, no recurring extra cost. I recommend getting it from them. Saves debates if the connection isn't working from the start. Also their technician will connect and activate it, if you bought theirs.
You can of course buy a new contract and keep your DSL line active, but why would you? iIf you "upgrade" your DSL line to fibre at least in our case you do not even need to configure new credentials. When the ONT is activated, the DSL line will go down, you switch your WAN interface from DSL modem to ONT, instant connection. PPPoE etc. all stays the same.
I had to add VLAN 7 in OPNsense, because with DSL I have the modems do that, but that was all.
I want to keep the old DSL as I never do such a switch without redundancy. I prefer to pay for two lines and have at least one online ;-)
Worst case: Pay for two line and have zero online.
Especially if you travel a lot and loose your tunnels due to switching from DSL to fiber...
In that case - buy ONT from Telekom, get new PPPoE credentials, configure as usual.
You can keep using the existing phone line / DSL, these won't get shut down anytime soon.
Deutsche Telekom sells two types of basic ONTs for about the same price: The "Glasfaser-Modem 2" with a 2.5 Gig Ethernet port and an SFP module named "Glasfasermodem Digitalisierungsbox" (actually a Zyxel PMG3000-D20B). Both are known to work just fine. There are some reports about compatibility issues with the SFP in certain NICs, but it works fine for me in a MikroTik device.
I'd highly recommend getting your home connected. Even if you don't currently need the speed, it's more reliable than DSL, upload speed is 50% of download, power consumption is lower. And if the fiber itself is from Deutsche Telekom, you can typically get contracts from Vodafone, o2, 1&1 etc., too. Just like with DSL.
Cheers
Maurice
Ok, if I buy a fiber plan for lets say 2-3 years, I pay for 150 Mbit arround 42.- Euros, plus ONT (X euro), plus some "set-up fees" maybe?
In the end I have the ONT in the basement, what next? Need some fiber inside the house for connecting ONT with sense, which is not trivial, as there are SOME rooms in between, so to say the complete opposite corner of the house. I can't install fiber myself throughout the house, right?
What would be the costs for cabeling inside the house?
No. Not at all.
1. The ONT is normally provided at no cost from the provider. Unlike with DSL modems, ISPs actually want you to use their equipment, because they say that it makes their infrastructure more stable. Know that you still share an OLT port with other customers.
2. The fibre cabling ends at the ONT. So it is your choice on where you locate it (provided that you actually get FTTH, not FTTB, where this is a whole different story). From there, you need ethernet cabling to the WAN port of your router. The provider does not care about the in-house cabling with FTTH, that is your problem. Usually, the fibre ends somewhere in your basement with the ONT directly connected via a short fiber stretch near it. Thus, it is your choice: If you have existing ethernet cabling that leads to the ONT, then you use it. If not, you can either install ethernet abling or install a longer fibre cable (which is really cheap (https://www.amazon.de/Elfcam%C2%AE-Glasfaser-Kabel-Stecker-Patchkabel-Lichtwellenleiter/dp/B08MVC7PTT)) from the box to your ONT (which you place with your router).
There are multiple options available, for GPON and XGS-PON, this will always be single-mode fibre, usually with SC/APC or LC/APC ends, depending on sockets. Huawei has an interesting option for single-mode cables that you can glue to the wall and that are pratically invisible (you can actually put paint on those):
https://www.youtube.com/watch?v=ls26PPutDMc
Those were developed for FTTR, but can also be used for this purpose.
In single family homes, Deutsche Telekom by default installs the optical outlet ("Glasfaserteilnehmeranschlussdose" in prototypical Telekom speech) in the basement - for free.
If you want it elsewhere in the house, you can prepare a conduit yourself and they will use it to run up to 20 meters of fiber inside the house (also for free).
If you decide to have the optical outlet in the basement, you can then either run your own fiber from there to wherever your network gear is and place the ONT there, or you can place the ONT in the basement and run twisted pair from there to your router.
Cheers
Maurice
@meyergru Deutsche Telekom does not give you a free ONT. You have to buy or rent one.
Really? Interesting. Both M-Net and Deutsche Glasfaser give you one. Either way, they are dirt cheap (30-50€). I just bought an LXT-010H-D from wisp.pl and that also has 2.5 Gbps.
If I buy an ONT: How much (ballpark)?
The old telephone line enters the house to the best of my knowledge in the basement, EAST side. The router would be one level up and to the very WEST. So kind of nightmarish, no matter it CAT6/7 or fiber.
Extra question: How deep does Der Gilb dig outside the house? Still 80cm something at least? No microtrenching or so?
Maybe I should ask for an ONT to be placed direct at my network-equipment, (first floor, so the fiber would be on the OUTSIDE of the house, before entering through the wall? Sounds crazy...)
You should talk to them directly, but I would think they want it covered, because when that breaks outside your house for whatever reason (e.g. vandalism), it is their obligation to fix it.
The ballpark for such things is 30-50€, as I already wrote. The Leox LXT-010H-D should work for Telekom, because they use VLANs (I still was unable to get it to work for DG). It costs ~31€. The Telekom Glasfaser Modem 2b is ~40€ and that should work with Telekom for sure...
https://shop.telekom.de/geraete/telekom-glasfaser-modem-2-schwarz
https://www.amazon.de/Telekom-Glasfaser-Schwarz-Ethernet-Anschluss/dp/B0FJ8CCY1L
https://www.playox.de/telekom-glasfaser-modem-2b-lan-port-lc-anschluss-2-gbit/s-bandbreite-schwarz-40824527-n2008265932
Quote from: chemlud on February 19, 2026, 04:57:18 PMThe router would be one level up and to the very WEST. So kind of nightmarish, no matter it CAT6/7 or fiber.
It shouldn't come as a surprise that in-house infrastructure is a responsibility that comes with house ownership. You can always pay someone to do it for you.
Quote from: chemlud on February 19, 2026, 04:57:18 PMExtra question: How deep does Der Gilb dig outside the house? Still 80cm something at least? No microtrenching or so?
That's really something you need to discuss with them. Often, they don't dig a trench at all, but "drill a tunnel".
Quote from: chemlud on February 19, 2026, 04:57:18 PMMaybe I should ask for an ONT to be placed direct at my network-equipment
The ONT is placed by yourself wherever you want. The demarcation point is the passive optical outlet (Gf-TA) installed by Deutsche Telekom. You can ask them to install it in a location of your choice, but will have to prepare a conduit if that's not close to where the fiber enters the building.
Quote from: chemlud on February 19, 2026, 04:57:18 PMfirst floor, so the fiber would be on the OUTSIDE of the house, before entering through the wall
You can always ask. They sometimes even install the Gf-AP (box where the external fibers end and the fiber going to the Gf-TA starts) on the outside.
I just bought three of those to get Gigabit speed to my wife's and my desk over telephone wire. They work splendidly and are transparent to 802.1q so you can connect trunk ports of two switches.
https://www.gigacopper.net/wp/heimvernetzung/
Should you need to bridge some distance from the optical outlet to your OPNsense. "Nail" the ONT to the wall near the outlet, go with a single pair of copper from there.
Quote from: Maurice on February 19, 2026, 03:38:24 PMDeutsche Telekom does not give you a free ONT. You have to buy or rent one.
Can you choose a different ISP that operates on their network and get one that way ??
Quote from: meyergru on February 19, 2026, 04:52:46 PMReally? Interesting. Both M-Net and Deutsche Glasfaser give you one.
We have something really weird here in The Netherlands on the Delta Fiber Network :
- Choose Delta as ISP and you don't get a Nokia 010 ONT and get a Nokia "All-in-One" model instead.
- Choose any other ISP that operates on their network and you get the Nokia 010 ONT and a seperate Router from ZyXel.
And that Nokia 010 ONT has a huge DELTA sticker on it !!! LOL !!!
QuoteEither way, they are dirt cheap (30-50€). I just bought an LXT-010H-D from wisp.pl and that also has 2.5 Gbps.
Over here most people buy either a Huawei ONT or Nokia ONT for XGS-PON connections like this one : https://www.wisp.pl/p12211,huawei-optixstar-en8010ts-20-terminal-xgs-pon-ont.html
(Sometimes from the very same webshop by the way!)Usually not very cheap and the availability is not that great either...
XGS-PON ONT prices are a lot higher than GPON ONTs. They often draw a lot more power, as well. As long as you do not have a rate > 1 Gbps, you can use a GPON ONT, because XGS-PON is mostly downwards-compatible. In Germany, there are only a few ISPs who already offer XGS-PON - we sometimes use to call it "digital diashora".
In theory, one could have up to 2.5 Gbps downstream over plain GPON, BTW.
Quote from: nero355 on February 19, 2026, 09:31:00 PMCan you choose a different ISP that operates on their network and get one that way ?
Sure. Deutsche Telekom, Vodafone, o2, 1&1 will happily sell you the very same ONT with a slightly customized enclosure and their own logo slapped on it. :)
https://hack-gpon.org/ont-sercomm-fg1000b/#other-brand-names
Quote from: meyergru on February 19, 2026, 10:14:40 PMAs long as you do not have a rate > 1 Gbps, you can use a GPON ONT, because XGS-PON is mostly downwards-compatible.
A GPON ONT can't talk to an XGS-PON OLT, they even use different wavelengths.
The only thing you cannot do is to "clone" an ONT because the ISP-provided ones are often locked. Cloning provides the benefit of having a cold standby in case the original ONT dies.
The equipment the providers usually have can do both XGS-PON and GPON or they give you a port that is suitable for you depending on what the ISP knows (or thinks) you have. Technically, they can also optically mix XGS-PON and GPON OLTs on the same customer fibres, just because of the different wavelengths.
You would be hard pressed to find an ISP that starts with XGS-PON and has only that. Although that might be true of Telekom when they now start a new "Ausbaugebiet".
XGS-PON? GPON OLT? What are you talking about!?!?
Gf-AP? Gf-TA? What'S that?
@PHM: The boxes sound fun and have funny prices! Which cabeling are you going to use? Old telephone line? coax? Cabeling is not trivial, I guess...
I tried to check availability of Glasfaser at my adress at Telekom homepage several times in the last days, but only got "momentan nicht erreichbar". Apparently the neighborhood is not so keen on fiber. The DT stalker is really trying to press to make the project work, apparently he will not earn any money otherwise...
I am already using old telephone wires. That's the point. Cabling is trivial with this product. Use any old "shoe laces" (ok, copper wires) you might have in your wall, already.
When we moved into this appartment 25 years ago there were phone outlets in every room. I replaced all TAE (German phone) outlets with RJ45. I have been running Fast Ethernet over them all these years and that's still enough for e.g. the Apple TV in the living room. DSL uplink is 100 Mbit/s, anyway.
But both of us wanted a faster connection from/to the servers (NAS etc.) to our desks and then some homelaber made a YT video about these Gigacopper boxes.
So if the distance from where DTAG will deliver your fibre to the location of your main network is an issue you could use any old phone wiring you might have in place and get Gigabit speed.
Quote from: meyergru on February 20, 2026, 08:48:11 AMThe equipment the providers usually have can do both XGS-PON and GPON or they give you a port that is suitable for you depending on what the ISP knows (or thinks) you have. Technically, they can also optically mix XGS-PON and GPON OLTs on the same customer fibres, just because of the different wavelengths.
You would be hard pressed to find an ISP that starts with XGS-PON and has only that. Although that might be true of Telekom when they now start a new "Ausbaugebiet".
Using a GPON ONT on any of the XGS-PON networks here is not allowed at all !!
Quote from: chemlud on February 20, 2026, 09:16:36 AMXGS-PON? GPON OLT? What are you talking about!?!?
OLT = The hardware your ISP uses to connect you via XGS-PON Glassfiber.
ONT = The hardware you use at home to connect to that OLT ;)
Quote from: Patrick M. Hausen on February 20, 2026, 09:39:46 AMI am already using old telephone wires.
Use any old "shoe laces" (ok, copper wires) you might have in your wall, already.
When we moved into this appartment 25 years ago there were phone outlets in every room.
I replaced all TAE (German phone) outlets with RJ45.
You could use any old phone wiring you might have in place and get Gigabit speed.
+1 here :)
I discovered that I could disconnect the phone cabling splitter from the main phone line and then had high end and thus very useable CAT5e wiring through the house!
Each phone outlet was removed and replaced with an UniFi In Wall accesspoint and an additional 8-port Switch attached to the PoE Out port :)
Quote from: nero355 on February 20, 2026, 02:30:51 PMI discovered that I could disconnect the phone cabling splitter from the main phone line and then had high end and thus very useable CAT5e wiring through the house!
Oh, that's a nice find. Here it's definitely phone cable. The connections now go up to 100 Mbit/s but not higher, although all 8 wires are connected.
There's a central box in the wall where all those TAE outlets run to. Inside was a rat's nest. A put everything on LSA+ and documented what leads where. Then drilled through the wall and mounted a patch panel in the adjacent room which happens to be my study.
At the entry point of the old copper telephone into the house there is no TAE whatsoever, just a grey box with a thick black cable (comming in from DT) and a thin copper entering the house. How would one connect the modem for the ONT (RJ45) to this DT "Wallbox" for old copper line? Handmade TAE?
But I want the old copper line to be functional for my DSL!
Open the box and find an unused pair that leads to the same destination as the one used for your DSL line. It's your house if I got that correctly so you can do whatever you want. Even if there is a postal symbol on the box 🙂
If it's LSA (https://de.wikipedia.org/wiki/Schneidklemme#/media/Datei:Telephone_wiring.jpg) inside you can buy or borrow the matching tool and connect a pair of wires leading out of the box and connect them to one of these Gigacopper modems. If it's even older the connections possibly use screws.
To identify wires there are tools, too, like these two in combination:
https://www.secomp.de/de/item/softing-cablemaster-210-durchgangs-und-verdrahtungstester/24010140
https://www.secomp.de/de/item/softing-cableprobe-cp15-ton-ortungsempfanger/24010070
You hook up the first one to an unused (TAE or other) outlet, then use the pointy thing to search for the pair inside the box via the very audible signal.
P.S. One's got to love the product photos of the pointy probe. Because of course you would hold it to a switch port 😂
I think the cabling in the house is only 2x 2 cables (two different phone numbers, different DT accounts), but you expect there to be 8 cables inside?
There is no lead seal or somthing for this DT cable box? The coax cable guys show up every few years to check the lead seal for there connection point inside the house (located directly besides the old DT cable box, but zero coax cabeling inside the house...).
Don't want to break the grey, ancient plastic housing of the DT cable box...
No seal, since Deutsche Post became Deutsche Telekom - your property, your cabling. Their domain ends where the cable enters the house.
I do not expect anything - you need 2 (two!) wires from where the fibre enters the house and the ONT is placed to wherever you want your OPNsense to be. Two of those Gigacopper boxes, 2 wires, done. Open the box and find two spare wires in the best case 🙂
BTW: shouldn't we have a moderator move this thread to the international forum? This is the German language section, not the German location section.
no, it's International -> General Discussion, at least at my end... :-D
...no free cabeling at this point. And only the cable pair providing my DSL (to my router) ends in my office, i.e. the cable pair that will be still in use after the fiber will be installed.
Tinkering with that cable pair for connecting the modem you linked would mean to add two thin cables on the right side of the box and connect them in some way with the modem? Same then in the TAE-outlet in my office, correct?
I see 2 pairs/4 wires 😉
Your DSL line needs only one of those pairs. I would replace the TAE outlet with a 2x RJ45 one, connect pins 4 and 5 on each with one pair, and make sure DSL still works.
To prepare for the fibre connection you can then pull the unused pair from the LSA connector and extend it to a length reaching out of that box and leading to the modem. E.g. cut the plug from one end of an RJ45 patch cable, connect lines 4 and 5 to that free pair, done.
Make sure to get the modems with RJ45 if you go that way.
TAE replacement - make sure to get "ISDN" outlets with screwed connections, so you won't need an LSA tool:
- in wall: https://www.inline-info.com/InLine-ISDN-Anschlussdose-2x-RJ45-BU-Unterputz-Schraubanschluss-2x-8-fach
- on wall: https://www.inline-info.com/InLine-ISDN-Anschlussdose-2x-RJ45-Buchse-Aufputz-Schraubanschluss-2x-8-fach
To extend the wires in the box these come in handy:
https://www.amazon.de/ScotchlokTM-Einzeladerverbinder-Schwachstromverbinder-Signalkabel-Kabelschnellbinder/dp/B0972RRXGC
HTH,
Patrick
Yepp. two pairs, as currently two different Telekom accounts, one analog number (really!) and one DSL line.
As I wrote above, the "unused" pair of cabels (after switching the analog account to fiber) does not end in the correct room. Only the DSL pair of cables (I want to have functional even after fiber established) ends in my office, therefore I will have to connect these modems to the same two cables my DSL is delivered nowadays and should be delivered in the future in parallel to the fiber connection.
Both, DSL and and fiber, should use the same pair of cables in the end.
Difficult but not impossible.
Use the DSL pair of wires to connect a pair of those modems. You now have a Gigabit Ethernet connection which is VLAN transparent between the two ends.
Move the external DSL modem (you have one, right?) to the wiring room, mount a new on wall TAE, lead the two wires for DSL to the TAE and connect the DSL modem.
Connect the ONT to the fibre line, also in the wiring room.
Now you have one Ethernet but two uplinks. So the missing piece is a small VLAN capable switch like a Mikrotik Hex.
You will need an LSA+ tool and a bit of experience with these things, some phone wire, a TAE outlet and some of the connectors I linked above.
If you don't know which pair (1 or 2 on the LSA) is DSL and which is phone you also need a wire identifying device. IIRC I also linked one, already.
Or given you have an LSA tool to reconnect, gently pull one wire and check which service (phone or DSL) fails.
Quote from: chemlud on February 22, 2026, 12:08:18 PMYepp. two pairs, as currently two different Telekom accounts, one analog number (really!) and one DSL line.
Analog phone lines are pretty much dead from what I have understood : They are all EPOTS these days !!
So you should have just asked your ISP to combine those two for a nice Bonded VDSL2+ 200/60 Mbps connection if possible :)
Ha, new idea, much simpler!
I opened the wall box where the cabel to my office starts from (inside a TAE plug device) and found two unused cables to my office (red cables, see below). After the fiber is built and connected, the analog telephone line (in the TAE box) will go down and the two cables are free!
If I connect the cabels now going into the TAE plug with 2 free, red wires I have a FREE connection to my office, which I can use for these modems to connect the ONT with a sense in my office.
So with 2 modems G4201T I would have to cut the RJ! connector on the side for the ONT and connect which cable with which in the Hausübergabepunkt (see post above).
On the router-side I would have to find a TAE/F to RJ11 cable or cut the RJ11 from the cable and connect the cables from the wall directly to the RJ11 plug for the modem.
Correct? :-D
Looks good. I went with G4202T modems because they come with RJ45 instead of RJ11.
Which advantage has RJ45 over RJ11? I'm totally unsure to which cable I have to connect the RJ11 plug,,, is there some kind of cabeling plan for RJ11/RJ45 available?
I have no LSA tool (and no experience with that at all...) but only a cheap rj45 crimp tool. Sounds crazy to have 1.5 Gbit with homebake stuff like that.
You need only the two centre wires. Thats (with 6 total) 3 & 4 for RJ11 and (with 8 total) 4 & 5 for RJ45. This is really just "mechanics". RJ11 is the international equivalent of TAE with 6 wires total.
Common patch cables are RJ45 so I try to keep everything that way.
Quote from: nero355 on February 19, 2026, 09:31:00 PMOver here most people buy either a Huawei ONT or Nokia ONT for XGS-PON connections like this one : https://www.wisp.pl/p12211,huawei-optixstar-en8010ts-20-terminal-xgs-pon-ont.html
(Sometimes from the very same webshop by the way!)
Usually not very cheap and the availability is not that great either...
Would you happen to know if the Huawei allows changing the ID, so we don't have to contact the ISP when switching ONTs?
Quote from: chemlud on February 18, 2026, 06:18:08 PMAny experience with Deutsche Telekom on that?
The line itself is great here (dual stack IPv4 / IPv6, no 24h Zwangstrennung).
But careful, with German Telekom you'll get very bad Cloudflare peering. In fact, they don't have any direct peering and the transits are often crowded. Their community forum is full of angry customers, just recently it was very, very bad. Their support team is so desperate, they even recommend switching the ISP (temporarily with a VPN provider, but still).
@athurdent is the peering problem relevant only for Gbit? or even with lower bandwidth? my 120 Mbit DSL from Telekom is not that a problem for my use cases.
What is the problem with Zwangstrennung? I do that "manually" every night, line up again in very few seconds with fresh IP...
mildly OT, but...: After opening the wall box depicted above and moving the cables, my DSL went down. I cut the connection (just twisted some 10 times! no soldering!) and reconnected the ends and DSL came back.
checked the remaining cable residues with Ohm-meter, both apparently intact, so no idea what broke my DSL
can the connection be soldered? or is twisting the free ends standard? ***glotz***
Buy a handful of the connectors I linked here:
https://forum.opnsense.org/index.php?topic=50978.msg261042#msg261042
Quote from: athurdent on February 23, 2026, 07:02:16 PMWould you happen to know if the Huawei allows changing the ID, so we don't have to contact the ISP when switching ONTs?
It was a long time ago that I have read about the Huawei and at one point pretty much everyone started buying the Nokia 010 which is preferred by the ISP so I can't tell you anything about that except one thing : It is highly NOT RECOMMENDED to do something like that !!
IIRC it might even get you banned on the network of the ISP !!!
Quote from: chemlud on February 23, 2026, 09:08:03 PM@athurdent is the peering problem relevant only for Gbit? or even with lower bandwidth? my 120 Mbit DSL from Telekom is not that a problem for my use cases.
What is the problem with Zwangstrennung? I do that "manually" every night, line up again in very few seconds with fresh IP...
As it's peering-related, the problem will affect everyone. E.g. usage of 1.1.1.1 with packet loss, no fun. Lots of websites also use Cloudflare (IKEA, Discord, etc.) so during prime time those were heavily affected a while ago. Now it's OK again, but usually that holds for a few month and the problems start again. See netzbremse.de or Reddit, e.g. an analysis of the most recent event https://www.reddit.com/r/de_EDV/comments/1qkm5vt/zum_dtagrouting_zu_cloudflare/
Zwangstrennung, there's no problem with Telekom. They have turned that off, it'll only reconnect once every 180 days or so. Remove your 24h workaround, it should not make a difference.
I reset my PPPoE every night on purpose, get a fresh IP. Why are people so upset by Zwangstrennung? DynDNS is up again in seconds, no problem.
RE: Netzbremse. That explains that, I mostly do my webbrowsing from outside Telekom. Don't ask for details :-D
Quote from: chemlud on February 24, 2026, 08:13:12 AMI reset my PPPoE every night on purpose, get a fresh IP. Why are people so upset by Zwangstrennung? DynDNS is up again in seconds, no problem.
Some of us appreciate uninterrupted connectivity.
Latest developments:
Adoption rate appears to be very, very lousy, so DT decided to have a propaganda stand in some public place arround here to get more subscribers. In the flyer they promise 20m of free (as in unpaid) fiber installation inside the building.
What's next?
You need to prepare an empty tube ("Leerrohr") where you want them to run the fibre. With that in place they were in our case quite flexible concerning the length. 😉 Main thing they want to avoid is extra work, a couple of meters of fibre doesn't cost much.
Quote from: chemlud on February 24, 2026, 05:05:36 PMIn the flyer they promise 20m of free (as in unpaid) fiber installation inside the building.
Let me quote myself:
Quote from: Maurice on February 19, 2026, 03:37:10 PMIf you want it elsewhere in the house, you can prepare a conduit yourself and they will use it to run up to 20 meters of fiber inside the house (also for free).
You can also find all of this information on their website, it's pretty well documented.
Seriously? I have to lay down the Leerrohre? And drill the holes in the wall in the end?
Yes. It's either they mount the outlet right where the fibre enters the building or you provide the space where they can lay it. Up to 20m officially with some leeway if it does not require extra effort.
Quote from: chemlud on February 24, 2026, 05:05:36 PMWhat's next?
Next you hope you're the only one subscribing, it's a shared medium. 😉
Quote from: athurdent on February 25, 2026, 05:49:33 AMQuote from: chemlud on February 24, 2026, 05:05:36 PMWhat's next?
Next you hope you're the only one subscribing, it's a shared medium. 😉
..as it's with my VDSL from Telekom in the same building right now anyways. I need the bandwidth mostly at daytime, when it get's croweded in there I'm gone.
I would need a least 2 holes in the 25cm massive ferroconcrete ceiling plate (1970's bunker...), as the way across the attic is shortest and no open conduit throughout the building. No fun!
Does the "Hausanschluss" need an electric wall outlet as well? Or is it passive and only the ONT has a plug?
Quote from: chemlud on February 25, 2026, 09:25:54 AMI would need a least 2 holes in the 25cm massive ferroconcrete ceiling plate (1970's bunker...), as the way across the attic is shortest and no open conduit throughout the building. No fun!
Then keep the ONT in the basement and stick to the Gigabit over copper plan.
Same same, doesn't matter if I route fiber or RJ45 throughout the house/attic. Except when using "your" modems for old telephone copper shoe laces, with approx. 250-300 € investment.
***sigh***
Will have to think through, what is the most stable, sustainable way to go... But that'S why we are here, to find the options and there pros and cons.
2 questions open at that time:
- Does the "Hausanschluss" need an electric wall outlet as well? Or is it passive and only the ONT has a plug?
- What is the smalest radius you can bend the fiber to in a corner? 1-2 cm? 5 cm?
The ONT comes with a wall wart (Steckernetzteil).
For the radius look here: https://telekomhilft.telekom.de/conversations/festnetz-internet/glasfaser-selbst-verlegen-wiewomit-verlegt-man-um-ecken/67a61b7c0b033707551d5dcd
Hm, but if I place fiber cable throughout the house, then the ONT is in my office. The connection from "Hausanschluss" to fiber inside the house is passive, I guess?
Minimal radius for fiber: According to your link: It depends! (WOW!) So only Telekom technician (or underpaid Romanian subcontractor?) knows, which fiber is currently at hand at the time of cabeling. Bit of a black box...
Quote from: chemlud on February 25, 2026, 10:58:12 AMThe connection from "Hausanschluss" to fiber inside the house is passive, I guess?
Yes.
Radius for the in house single fibre (they use just one strand with different wavelengths for send and receive) according to that help platform discussion no larger than 5 cm, so a 15x15 mmm on wall conduit would work.
Now we are almost back to what I wrote in post #6 (https://forum.opnsense.org/index.php?msg=260771):
Because you have to provide the conduit anyway (which is the hardest part), I would always prefer to do the inhouse cabling all by myself. That way, you can choose to use the original outlet in the basement if you so choose later on or extend that via a single-mode fibre cable to any location you need.
This can be done via a conduit and cable (as said, they are dirt cheap) or a system like Huawei, where you can even skip the conduit altogether and have the inhouse cabling pratically invisible glued to the wall (modulo wall breakthroughs).
climate conditions at the attic are rather rough, so maybe better outdoor fiber?
Does anybody need a "Wichmann Kabelbox", see the .pdf you linked...