Anyone Got An Internal Fitted CSP ?.

Anyone Got An Internal Fitted CSP ?.

With my 'Cowboy' install I have a Internal fitted 'External' CSP
Note my BT Duct is internal.
This guy had Pre-terminated (both ends) fibre cables in his van but could no be bothered to measure my 80m 'ish BT duct length so he used a full 100M roll with only the CBT plug on one end so had to 'splice it'

Anyone with an Internal BT duct have you also got a CSP * inside.

* CSP = Customer Splice Point .

Edited by APTMAN (Fri 13-Aug-21 09:15:08)

In reply to a post by APTMAN:

Anyone Got An Internal Fitted CSP ?.

With my 'Cowboy' install I have a Internal fitted CSP
Note my BT Duct is internal.

Anyone with an Internal BT duct have you also got a CSP * inside.

* CSP = Customer Splice Point .

How internal, even though the bt bods here might know more? the csp is there for seasonal heat expansion and redundancy

Seem logical to me if the duct is internal the splice point is likewise, no. Wouldn't you be complaining more if they had to take the lead-in cable from the internal duct, up and drill a hole outside to an external CSP, then drill another hole again to run the cable back inside again...? Maybe drill a big ole hole and run both 🙃

[I never had a CSP on my install, maybe I should I ask Clive for one for FOMO 😎]

In reply to a post by Taras:

How internal, even though the bt bods here might know more? the csp is there for seasonal heat expansion and redundancy

Nope if there is heat emanating, then there is an issue, as it just glass fibre with light pluses inside. Nothing active (electronically anyway) in there. Nothing seasonal to worry about, fibre does expand and contract but really quite minuscule amounts 😀

"Redundancy" (actually more like spare capacity); yes if they ever need to chop the cable and re-splice the internal and external sections somewhere to stick a metre or two of fibre. That's about it. Tis just a box with a few coils of fibre and a splice protection tube in there.

In reply to a post by APTMAN:

I have a Internal fitted CSP

For clarity he fitted an external CSP (because thats all he had) inside your property?

I have an internal CSP..

My line is armoured and they dug into garden and brought the feed in through vent,

https://imgbb.com/bvVs6x5

Edited by BuckleZ (Thu 12-Aug-21 23:37:52)

Yes, the fibre drop cable is held by the "curly-whirly" and then goes through the soffit and into around 7m of 20mm conduit, and into a small comms room/loft where and external CSP is fitted.

It looks a bit "industrial" but is out of the way and not seen. An internal one may have looked niocer but it is not an issue.

The alternate would have meant a drop from the eaves down to ground level, the CSP there, then back up to te eaves and into te conduit. That would have meant more work for the technicians (Kellys) and poitential damage to some of my wifes plants along with annoying cabkle runs.

I was happy with it, the technician was happy as it took about 3 hours rather than 4.

In reply to a post by Pheasant:

In reply to a post by Taras:

How internal, even though the bt bods here might know more? the csp is there for seasonal heat expansion and redundancy

Nope if there is heat emanating, then there is an issue, as it just glass fibre with light pluses inside. Nothing active (electronically anyway) in there. Nothing seasonal to worry about, fibre does expand and contract but really quite minuscule amounts 😀

it is small amounts yes, but i meant movement as well. 😁(sorry i've been unwell for the last two weeks)

In reply to a post by Pheasant:

"Redundancy" (actually more like spare capacity); yes if they ever need to chop the cable and re-splice the internal and external sections somewhere to stick a metre or two of fibre. That's about it. Tis just a box with a few coils of fibre and a splice protection tube in there.

True, or when you had the 4 port version you just nab a second fibre from the csp.

In reply to a post by Taras:

it is small amounts yes, but i meant movement as well. 😁(sorry i've been unwell for the last two weeks)




True, or when you had the 4 port version you just nab a second fibre from the csp.

Multi-port ONTs don't have multiple fibre connections. The old 4-port ONTs (Huawei or possibly ECI) just have the one fibre lead-in connection, just like single port ONT's.

If you want a second FTTP service, right now, (as the new Nokia multi-port ONT has not yet launched) then Openreach would need to connect you to a second CBT port, install another drop cable from the street, another CSP and another internal lead in and separate ONT.

The CSP is really just there to house/protect the splice. It's not there for any expansion/contraction of the fibre.

Yes thanks I added that to my 1st post.

If its in a porch thats one thing but if in the main living area that would be a no-no for me, I believe you can get the internal CSP's in white which I suspect would be better in a lot of cases.

In reply to a post by Taras:

True, or when you had the 4 port version you just nab a second fibre from the csp.

No you only have ONE fibre and by magic and flashing lights and 'Time Division Multiplexing' it's all sent down ONE Fibre if you have more than one ISP service they change the ONT to a four port one (These are four Ethernet outputs), you do not need anymore 'drop' fibre lines

I have looked into this as I will need separate services for my self catering holiday flats (when I get them open).

In reply to a post by Taras:

you just nab a second fibre from the csp.

This is only true for the older manifold FTTP deployments (pre-connectorised cables to the property).

Yep mine was internal. Had to get someone else to do the roof part because they didn’t want to go on it.

https://i.imgur.com/bj2DJ69.jpg

In reply to a post by APTMAN:

if you have more than one ISP service they change the ONT to a four port one (These are four Ethernet outputs), you do not need anymore 'drop' fibre lines

They do not currently.
As has been mentioned numerous times this is not the current process.

Although you don't "need" another drop cable and another ONT, that is the current process for a 2nd service for anyone with a 1 port ONT.

OpenReach are starting a process where a 4 port ONT will automatically be ordered when you order a 2nd service. I believe this hasn't started yet though.
It is also only applicable to Nokia ONT's.

They haven't yet announced any such process for Huawei ONT's.
The current 4 port Huawei ONT's are apparently rare as hens teeth.

The upcoming OpenReach Nokia 4 port ONT is an existing model from Nokia's GPON range of ONT's but with the phone ports removed.

OpenReach may be waiting on Huawei supplying new 4 port ONT's. If so it would likely be a different model without the phone ports.

As you say though, if/when you do get supplied a 4 port ONT you don't need another drop cable.
The single strand of fibre in the drop cable can support up to 4 services on a 4 port ONT.

Edit: added a little info

Edited by j0hn83 (Fri 13-Aug-21 13:38:32)

In reply to a post by j0hn83:

In reply to a post by APTMAN:

if you have more than one ISP service they change the ONT to a four port one (These are four Ethernet outputs), you do not need anymore 'drop' fibre lines

They do not.
As has been mentioned numerous times this is not the current process.

Although you don't "need" another drop cable and another ONT, that is the current process for a 2nd service for anyone with a 1 port ONT.

OpenReach are starting a process where a 4 port ONT will automatically be ordered when you order a 2nd service. I believe this hasn't started yet though.
It is also only applicable to Nokia ONT's.

They haven't yet announced any such process for Huawei ONT's.
The current 4 port Huawei ONT's are apparently rare as hens teeth.

The upcoming OpenReach Nokia 4 port ONT is an existing model from Nokia's GPON range of ONT's but with the phone ports removed.

OpenReach may be waiting on Huawei supplying new 4 port ONT's. If so it would likely be a different model without the phone ports.

APTMAN is on a Huawei OLT so is definitely under the misapprehension he will be getting a 4 port for his holiday lets sometime soon unless, some delightful OR engineer finds that golden rivet in her/his van from 2018 or so.

In reply to a post by Pheasant:

APTMAN is on a Huawei OLT so is definitely under the misapprehension he will be getting a 4 port for his holiday lets sometime soon unless, some delightful OR engineer finds that golden rivet in her/his van from 2018 or so.

He mentioned a few times on the kitz forum that he was going to ask his ISP for a 4 port ONT to be installed during his install as he intended on running multiple services.

Either he didn't ask or that request wasn't actioned.

In reply to a post by j0hn83:

Either he didn't ask or that request wasn't actioned.

Sounds like he had his hands full helping the engineer pull in the cable. Maybe it slipped his mind.

I asked the cowboy installer but he had only got a Nokia one port ones in his van and as I have said before the BT chap he phoned up to report the ONT light was flashing said he supposed to be fitting a Huawei one (not sure if he was taking about a one port or older four ports ones) My CP did ask for a four port.

In reply to a post by dect:

In reply to a post by Taras:

you just nab a second fibre from the csp.

This is only true for the older manifold FTTP deployments (pre-connectorised cables to the property).

I didn't realise that had changed with the newer conectorised installs .. I do understand where i screwed things up with that comment.

In reply to a post by APTMAN:

No you only have ONE fibre and by magic and flashing lights and 'Time Division Multiplexing' it's all sent down ONE Fibre if you have more than one ISP service they change the ONT to a four port one (These are four Ethernet outputs), you do not need anymore 'drop' fibre lines.

In theory you can send unlimited amount of "light" signals down a single fibre cable - its dependent on the technology at either end and the quality of the fibre. TDM is the most basic multiplexing system.

Rumour has it that they are fitting Nokia ONT’s on Huwawei exchange stuff now.

In reply to a post by Zarjaz:

Rumour has it that they are fitting Nokia ONT’s on Huawei exchange stuff now.

My understand is that it would still work apart from any proprietary testing/diagnostics, is that others understanding?

In reply to a post by Taras:

In reply to a post by dect:

In reply to a post by Taras:

you just nab a second fibre from the csp.

This is only true for the older manifold FTTP deployments (pre-connectorised cables to the property).

I didn't realise that had changed with the newer conectorised installs .. I do understand where i screwed things up with that comment.

Yeah legacy FTTP (pre 2017-ish) was blown fibre tubing from the manifold (hence its name) into the premises CSP. I believe Openreach used to blow a 4-core fibre bundle (aka blown fibre unit) about 1mm diameter total that contained within the bundle blue, orange, green and red fibre cores - used in that order, from the manifold to the CSP.

These days of connectorised Openreach FTTP, its just a single core of glass in that drop cable from the CBT port. If you need more cores, they need to hook you up to another port (difficult in some urban areas if there are any spare ports!) and then run another drop cable.

Openreach still used blown fibre to install leased lines into premises. I have a 12-core fibre bundle in 'shotgun' tubing (one used one spare) - the bundle about the same overall size as the 4-fibre bundle above, coming from the fibre joint enclosure in the footway chamber up to the equivalent of an FTTP internal CSP - maybe just a smidge larger 😎

When they ran the internal leg (for the second time, long story) they didn't even bother to get the compressor out, they just pushed the fibre down the tube by hand straight off the bin lid sized 2000m reel. Went in like a charm!

In reply to a post by dect:

In reply to a post by Zarjaz:

Rumour has it that they are fitting Nokia ONT’s on Huawei exchange stuff now.

My understand is that it would still work apart from any proprietary testing/diagnostics, is that others understanding?

Huawei OLT's have always been able to be software configured to be compatible with other brands of ONT - after all they are GPON standard compliant. However for whatever reason (possibly operational, support, monitoring and management software/tools training etc) Openreach decided to keep their estate single vendor.

In reply to a post by Zarjaz:

Rumour has it that they are fitting Nokia ONT’s on Huwawei exchange stuff now.

Haven't seen this happen yet.

I've seen quite a few examples of installs not being able to be completed because the engineer brought a Nokia ONT instead of a Huawei ONT.

In 1 case the engineer spent over 2 hours (including on the phone with the DCoE) trying to get the ONT registered without success.
Another engineer was sent with a Huawei ONT which worked immediately.

The OP's install couldn't be completed initially as the engineer tried (and failed) to register a Nokia ONT to the Huawei OLT.

So if it is happening, some specific configuration needs changing as at the moment how OpenReach have the OLT setup it certainly doesn't work automatically between Vendors.

From APTMAN post

In reply to a post by APTMAN:

I notice the PON light on the ONT was flashing, he did as well.

The Quinn guy had to talk to BT OpenReach because he had a flashing PON light, he had only fitted a Nokia ONT instead of a Huawei ONT, but BT OR chap had to re-configure things, then we got the Solid PON light.

In reply to a post by j0hn83:

In reply to a post by Zarjaz:

Rumour has it that they are fitting Nokia ONT’s on Huwawei exchange stuff now.

Haven't seen this happen yet.

I've seen quite a few examples of installs not being able to be completed because the engineer brought a Nokia ONT instead of a Huawei ONT.

In 1 case the engineer spent over 2 hours (including on the phone with the DCoE) trying to get the ONT registered without success.
Another engineer was sent with a Huawei ONT which worked immediately.

The OP's install couldn't be completed initially as the engineer tried (and failed) to register a Nokia ONT to the Huawei OLT.

So if it is happening, some specific configuration needs changing as at the moment how OpenReach have the OLT setup it certainly doesn't work automatically between Vendors.

They could if they wanted to though John. Its not technically impossible - although I have no idea how Openreach currently organise themselves in terms of OAM software tools etc which may be the reason they strategically deiced to keep the OLT estates single vendor.

At some point, probably at the expiry of their long term support contracts, Huawei will gradually exit stage left as they are pushed out of markets.

In reply to a post by dect:

From APTMAN post

In reply to a post by APTMAN:

I notice the PON light on the ONT was flashing, he did as well.

The Quinn guy had to talk to BT OpenReach because he had a flashing PON light, he had only fitted a Nokia ONT instead of a Huawei ONT, but BT OR chap had to re-configure things, then we got the Solid PON light.

So it seems.
I initially read that as he had changed the ONT.

Would be interested to hear from APTMAN if he does indeed have a Nokia ONT.

It can definitely be done on GPON.
Like I said it doesn't work automatically with OpenReach's setup.

In reply to a post by Pheasant:

They could if they wanted to though John. Its not technically impossible

I know it can be done on GPON.
I just know it isn't as simple as scanning the ONT barcode like with a normal install.

I'm a bit surprised nobody picked up on APTMANs original comments about the Nokia ONT.
If I had read his post correctly the 1st time round I would have commented that it's the 1st we've seen this happen.

Edited by j0hn83 (Fri 13-Aug-21 18:30:23)

In reply to a post by j0hn83:

He mentioned a few times on the kitz forum that he was going to ask his ISP for a 4 port ONT to be installed during his install as he intended on running multiple services.

I asked exactly that in 2019, and was told it wasn't possible - no 4-port ONTs for new installs.

In reply to a post by j0hn83:

So it seems.
I initially read that as he had changed the ONT.

Would be interested to hear from APTMAN if he does indeed have a Nokia ONT.

It can definitely be done on GPON.
Like I said it doesn't work automatically with OpenReach's setup.

Sorry J0hn83 wasn't doubting what you said, I thought the same until I reread it and like you said would be good to hear from APTMAN

In reply to a post by j0hn83:

I'm a bit surprised nobody picked up on APTMANs original comments about the Nokia ONT.
If I had read his post correctly the 1st time round I would have commented that it's the 1st we've seen this happen.

Like most folks, I too blithely read it as the engineer changed the Nokia ONT out for a Huawei, not as APTMAN has written it; suggesting it was a remote configuration update/change and the Nokia ONT was kept.

If so, not only is that a new thing, but also suggests that it would be possible for the 4-port Nokia, when its eventually arrives on the scene to be used in both Nokia and Huawei OLT estates. Would OR then bother with a 4-port Huawei ONT

I have a Nokia G-010G-Q 1x port ONT in which was Configured to work with the Huawei Exchange OLT.
It took a few minutes to re-configure it to work.

The cowboy installer had his phone on loud speaker and I could hear the the BT Openreach chap was not too happy that the installer had fitted the wrong one.


Why I do not want a CSP inside my equipment cupboard it's taken the space I left for my VOIP ATA box

The 4 port Huawei is obsolete and not provided just because a CP asked for one for any reason let alone because the customer plans on ordering a second service.

There may still be a few knocking around for specific instances such as my own however where there are CBT ports available and no second service has been ordered Openreach aren't going to go to senior management level to find one.

There's also the small matter that Openreach ONTs have a 1 Gb limit across all ports combined - the 4 gigabit ports share a single gigabit link to the optical side.

In reply to a post by APTMAN:

I have a Nokia G-010G-Q 1x port ONT in which was Configured to work with the Huawei Exchange OLT.
It took a few minutes to re-configure it to work.

The cowboy installer had his phone on loud speaker and I could hear the the BT Openreach chap was not too happy that the installer had fitted the wrong one.


Why I do not want a CSP inside my equipment cupboard it's taken the space I left for my VOIP ATA box

Consider yourself in two exclusive clubs - NOHO (Nokia ONT + Huawei OLT) plus Exterior CSP Fitted Internally - ECFI.

Catchy huh 😉🤣

Regarding the CSP, perhaps an internal white InvisiLight CSP may be smaller and white coloured so less industrial, but as your duct exit point is internal, there was logically going to have to be an internal CSP - did you not discuss and agree the location of the kit before with him?

Will we start to see HONO (Huawei ONT + Nokia OLT) as well or is this the start of phasing out new installs of Huawei ONT's?

Expecting to see ECI ONTs and Nokia / ADTRAN OLTs for sure. Not sure there's too much point in Huawei ONTs going into Nokia / ADTRAN areas.

What's the scale of the ECI based OLT estate? I thought it was relatively minor.

In reply to a post by APTMAN:

In reply to a post by Taras:

True, or when you had the 4 port version you just nab a second fibre from the csp.

No you only have ONE fibre and by magic and flashing lights and 'Time Division Multiplexing' it's all sent down ONE Fibre if you have more than one ISP service they change the ONT to a four port one (These are four Ethernet outputs), you do not need anymore 'drop' fibre lines

I have looked into this as I will need separate services for my self catering holiday flats (when I get them open).

Wouldn't you better off just upping your service to a 1000/115 and then sharing that across the holiday lets? Presumably you don't have dozens of apartments to service.

Would be loads cheaper than having separate connections to pay for.

In reply to a post by CarlTSpeak:

There's also the small matter that Openreach ONTs have a 1 Gb limit across all ports combined - the 4 gigabit ports share a single gigabit link to the optical side.

I'll take your word for it Carl, I've never bothered looking into it. Dare say it would be a cheap(er) SoC approach to just "fudge" it and have a 1G optical/switch interconnect rather than at least a 2.5G optical/switch on board, even though the latter would be able to more fully access the full PON bandwidth across the ports.

By the way I have a completely off question regarding your MikroTik 2004 - wondered if you are running v6.48.3 (or the ilk) or v7 beta on it and whether you are seeing any unexplained increases in min/max ping/times - I seem to be suffering a weird condition on a 1072 that resulted in complete loss of service on one port, even though router thought it was OK seems to reoccur every 30 to 40 days. Just wondering if I have a faulty pluggable in there or if its router itself.

In reply to a post by dect:

Will we start to see HONO (Huawei ONT + Nokia OLT) as well or is this the start of phasing out new installs of Huawei ONT's?

Engineers have been told to return all Huawei ONT's, so we definitely won't see that combo. It's to be Nokia only from now on.

In reply to a post by troublegum:

Engineers have been told to return all Huawei ONT's, so we definitely won't see that combo. It's to be Nokia only from now on.

Very interesting, thanks

In reply to a post by troublegum:

In reply to a post by dect:

Will we start to see HONO (Huawei ONT + Nokia OLT) as well or is this the start of phasing out new installs of Huawei ONT's?

Engineers have been told to return all Huawei ONT's, so we definitely won't see that combo. It's to be Nokia only from now on.

Yes thanks indeed for the v.interesting update.

I had wondered for a while now if/when OR would begin the (politically inevitable) move away from Huawei; they are practically radioactive now.

This may be a stupid question but I will ask it anyway

Once no more Huawei ONT's are being rolled out will they make a global change to the current default setting on the Huawei OLT software to allow Nokia ONT's without the need for a call from an engineer each and every time an ONT is installed.

Whether any Openreach folks in the know on ONT provisioning are going to reveal that (publicly) is debatable. There’s probably vendor licensing and commercial-in-confidence contractual stuff that’s errr….delicate 😉

In reply to a post by Pheasant:

Whether any Openreach folks in the know on ONT provisioning are going to reveal that (publicly) is debatable. There’s probably vendor licensing and commercial-in-confidence contractual stuff that’s errr….delicate 😉

Thought I would try

😀
Technically I believe the Huawei OLT would need to be licensed / unlocked / feature enabled to interoperate with third party ONT’s.

Commercially whether that’s something OR negotiated at the outset with Huawei or would now need to do on an estate-wide basis, etc is speculation.

But his previous post was a question, (as he said and also note the "will they"), not an "adslmax" type statement. He just forgot the question mark.

In reply to a post by Pheasant:

Regarding the CSP, - did you not discuss and agree the location of the kit before with him?

Yes I did ask why he was fitting an external CSP inside when he admitted that he had some 'Pre-connectorised fibre' cables (plugs both ends) with him.
This is how I do it he said

Re ' Wouldn't you better off just upping your service to a 1000/115 and then sharing that across the holiday lets? Presumably you don't have dozens of apartments to service.

Would be loads cheaper than having separate connections to pay for. '

Well yes it would be cheaper, but been advised if we have separate connections then if say one of the flats download / up-loaded something illegal and the police were involved then it would be easy to prove who was using that connection on a certain date .


Has anyone any Performance data/info about Nokia ONT connected to a Huawei OLT

In reply to a post by pluralist:

He just forgot the question mark.

Sorry about that, I do try my best.

Edited by deleted (Mon 16-Aug-21 16:20:45)

In reply to a post by APTMAN:

'Pre-connectorised fibre' cables (plugs both ends) with him.

Not sure how this would have helped.

Edited by deleted (Mon 16-Aug-21 16:19:25)

In reply to a post by APTMAN:

Well yes it would be cheaper, but been advised if we have separate connections then if say one of the flats download / up-loaded something illegal and the police were involved then it would be easy to prove who was using that connection on a certain date .

You can get around that:

- Take a business service from someone like Cerberus (£60+VAT pm for 900/110)
- Get a /29 of public IP addresses (8 addresses). May cost a few quid extra.
- Configure the router with a different private subnet for each apartment
- Configure it to NAT each subnet to a different public address
- Configure it to block apartment-to-apartment traffic

A router like Mikrotik RB4011, with 10 ethernet ports which can be separately routed, will work very nicely for this (1 for ONT and 8 for the apartments)

You need to understand a little about IP networking when setting it up, but once done, you can forget it.

In reply to a post by APTMAN:

Yes I did ask why he was fitting an external CSP inside when he admitted that he had some 'Pre-connectorised fibre' cables (plugs both ends) with him.
This is how I do it he said

But did he not then ask you if it was OK to fix the CSP in the position that he chose? Especially given that you wanted to put something there - you could have stopped him? No?

Re ' Wouldn't you better off just upping your service to a 1000/115 and then sharing that across the holiday lets? Presumably you don't have dozens of apartments to service.

Would be loads cheaper than having separate connections to pay for. '

In reply to a post by APTMAN:

Well yes it would be cheaper, but been advised if we have separate connections then if say one of the flats download / up-loaded something illegal and the police were involved then it would be easy to prove who was using that connection on a certain date .

That's a fairly large and costly sledgehammer to crack a (potential) proverbial wallnut. There are far more cost effective means to achieving this without going to all the trouble and expense of separate FTTP connections for. each holiday let. After all thousands of other businesses, hotels/motels, shared/colo offices etc, etc typically share a single internet connection without going to this sort of expense.

Has anyone any Performance data/info about Nokia ONT connected to a Huawei OLT

Are you expecting it to perform any differently? There will be zero discernible difference to performance. Mixed manufacture OLT and ONT/ONU is pretty typical, perhaps just not for Openreach.

Exactly that! 👍

APTMAN hasn't said how many holiday lets, but a /29 gives six five (oops forgot about the gateway) useable public IP's, presumably plenty if he was hopeful of a 4-port ONT.

Edited by Pheasant (Mon 16-Aug-21 19:08:15)

No need for the CSP and have my space back for my ATA box.

In reply to a post by Pheasant:

Exactly that! 👍

APTMAN hasn't said how many holiday lets, but a /29 gives six five (oops forgot about the gateway) useable public IP's, presumably plenty if he was hopeful of a 4-port ONT.

You'll get 5 IPs if you put them on a flat LAN, but that's not how you'll do it (unless you want to put a separate router in each apartment)

With a single router, you'd create separate private subnets, e.g.
192.168.0.0/24
192.168.1.0/24
192.168.2.0/24
... etc

each with their own DHCP pool; and then you'll map each of these to a different public IP for NAT. You can use all 8 of your addresses from the /29 this way, because the /29 isn't appearing on a single ethernet segment, it's being treated as 8 x /32.

In reply to a post by APTMAN:

No need for the CSP and have my space back for my ATA box.

I have never heard of a connectorised cable (CBT to ONT) already having a SC APC connector fitted, I know they use to fit field kit SC APC at one point but that is not the same as it already being fitted.

In reply to a post by dect:

In reply to a post by APTMAN:

No need for the CSP and have my space back for my ATA box.

I have never heard of a connectorised cable (CBT to ONT) already having a SC APC connector fitted, I know they use to fit field kit SC APC at one point but that is not the same as it already being fitted.

They do exist but are/were only intended to be used at new sites due to the higher cost of the cables. They are meant to be moving away from them.

They come in fixed lengths so the slack had to be lost inside the wall cavity and the slack from the UG cable (up to 20m) had to be coiled in the footway box. This really wouldn't work if the box was already crowded with existing copper equipment.

In reply to a post by troublegum:

They do exist but are/were only intended to be used at new sites due to the higher cost of the cables. They are meant to be moving away from them.

They come in fixed lengths so the slack had to be lost inside the wall cavity and the slack from the UG cable (up to 20m) had to be coiled in the footway box. This really wouldn't work if the box was already crowded with existing copper equipment.

Its not something I have ever heard anyone speak about on here so thanks for explaining.

In reply to a post by dect:

In reply to a post by troublegum:

They do exist but are/were only intended to be used at new sites due to the higher cost of the cables. They are meant to be moving away from them.

They come in fixed lengths so the slack had to be lost inside the wall cavity and the slack from the UG cable (up to 20m) had to be coiled in the footway box. This really wouldn't work if the box was already crowded with existing copper equipment.

Its not something I have ever heard anyone speak about on here so thanks for explaining.

Just to clarify, the installation is made up of 2 cables. The UG cable has 2 connectorised ends - male at the CBT and female at the house end. The internal cable has a male connectorised end and an SC APC end.

The "joint" between the 2 cables is usually hidden just inside the duct mouth at the house.

Edited by troublegum (Mon 16-Aug-21 22:13:40)

In reply to a post by candlerb:

In reply to a post by Pheasant:

Exactly that! 👍

APTMAN hasn't said how many holiday lets, but a /29 gives six five (oops forgot about the gateway) useable public IP's, presumably plenty if he was hopeful of a 4-port ONT.

You'll get 5 IPs if you put them on a flat LAN, but that's not how you'll do it (unless you want to put a separate router in each apartment)

With a single router, you'd create separate private subnets, e.g.
192.168.0.0/24
192.168.1.0/24
192.168.2.0/24
... etc

each with their own DHCP pool; and then you'll map each of these to a different public IP for NAT. You can use all 8 of your addresses from the /29 this way, because the /29 isn't appearing on a single ethernet segment, it's being treated as 8 x /32.

Ah yes, see what you're saying. If you've already got another say a /30 on the WAN interface (probably just the PPPoE assigned addressed in an FTTP scenario to be fair) then you can static route the 'additional' /29 block over it, and as this new block isn't actually allocated to any interface, the full 8 IP's can be used. The concept/need for for network, broadcast IP etc addresses from the block isn't needed.

I had in my head, that the /29 block is directly on an interface (no other seperate WAN IP already, doh!!), then to be able to route from the block, one IP address must go to the network IP, one IP for the gateway and one IP for the broadcast. In that case its back to 5 useable host IP's.

Yep. You don't even need a WAN /30 for this to work.

On my Cerberus connection, I have a /30 routed to me. One of the addresses I assign to the router WAN and is my "default" outbound NAT. The other three are available as additional 1:1 NAT or static routes.

I can give public address 1.2.3.4 to a specific server (without NAT), by adding 1.2.3.4/32 as a loopback on that server, and then static-routing 1.2.3.4 to its private IP address. This means I don't waste any of the addresses.

I am not opening a new 'Butlins Camp' it's only 3 flats max

Both my WAN connections are 'Business' .

As an Experiment to get 3 usable LANs (as described above posts) while I still have this connection available for a few months, If this works ok then I can get a larger block of IP's when the flats are ready from my FTTP cp.
On my ADSL2 connection I have a Block of 6 IP addresses so when I get time I'm going have a go at re-configuring my 'spare' home built pfSense firewall/router to work so it gives 3 x LANs it has 4 x NIC's.

Edited by APTMAN (Tue 17-Aug-21 09:45:50)

In reply to a post by APTMAN:

I am not opening a new 'Butlins Camp'

There was me thinking you was bringing back Warners Wagtails

Edited by deleted (Tue 17-Aug-21 10:49:27)

In reply to a post by APTMAN:

On my ADSL2 connection I have a Block of 6 IP addresses so when I get time I'm going have a go at re-configuring my 'spare' home built pfSense firewall/router to work so it gives 3 x LANs it has 4 x NIC's.

Perfect, pfSense will work very nicely for this. Select "Manual Outbound NAT rule generation" and add a separate rule for each local network with its own public IP.

Thanks.