Bigpipe - Am I meant to receive a public IP?

Forums › Spark New Zealand (including Skinny and BigPipe) › Bigpipe - Am I meant to receive a public IP?

TeaLeaf

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#284177 5-Apr-2021 17:44

Currently having to deal with constant changing iP address every few hours, I believe we are on CG-Nat, but Bigpipe state everyone is on a public IP (outside those who pay for static).

https://www.bigpipe.co.nz/faq/faq-about-our-plans/do-i-get-a-dynamic-public-ip-address

[Mod edit - Murph - changed terminology to Public IP]

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#2686776 5-Apr-2021 17:48

Website states dynamic IP address which is CG-NAT -
“Yes, all Bigpipe connections by default receive a Dynamic Public IP address.”

Does not mention anything about dynamic DNS. Dynamic DNS is no use anyways being behind CG-NAT.

-- opinions expressed by me are solely my own. ie - personal

hio77

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#2686781 5-Apr-2021 17:55

Changing ip would indicate your connection is dropping PPP.

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nztim

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#2686785 5-Apr-2021 18:03

What type of connection do you have?

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cyril7

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#2686789 5-Apr-2021 18:12

Spark and BP dont do CG-NAT on wired connections, unless you pay for a static it will be a dynamic address so will/may change when reconnecting or on a approx monthly refresh rate.

As other had said your PPP session is dropping, is this fibre or xDSL what router are you using

Cyril

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#2686820 5-Apr-2021 20:36

I have asked for more information on another thread and got nowhere.

First you are asking about dynamic IP address, not DNS.

Second, was your connection recently changed from one service to another? Does it drop every four hours?

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TeaLeaf

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#2686880 5-Apr-2021 22:44

I did reply to that thread.

yes it changes IP every 4 hours or so.

It is a BP fibre connection, the basic all you can eat one, I think it is 100/20Mbps from memory, could be wrong. Unsure of the router as it is just a basic one provided by Bigpipe, will check in the morning and reply with those details. Thanks

Sorry I meant dynamic IP, not dynamic DNS (brain fog due to the illness).

So Dynamic DNS and CG-Nat can be included in the same service or are they 2 different ways of handling IP address ranges used by the ISP?

Thank you all. :-)

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#2686883 5-Apr-2021 22:54

You have authentication issues if its every 4 hours.
Sparks (thus also bigpipe) system is built to deliberately kick the connection every 4 hours so you call in and they can correct it.

As its a fibre connection, it's quite an easy resolution, match record, add to authentication and done.

It's a brilliant Soultion for identifying hard to find connection records back in the days of dsl and chorus changing ports etc. Now that everything is asid based there are better options out there.

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freitasm

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#2686885 5-Apr-2021 22:56

As above. Your setup may have authentication problems. If you recently changed routers, or switched plans then you haveto have this checked. That's why I asked the questions I asked.

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cyril7

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#2686914 6-Apr-2021 07:10

TeaLeaf:

I did reply to that thread.

yes it changes IP every 4 hours or so.

It is a BP fibre connection, the basic all you can eat one, I think it is 100/20Mbps from memory, could be wrong. Unsure of the router as it is just a basic one provided by Bigpipe, will check in the morning and reply with those details. Thanks

Sorry I meant dynamic IP, not dynamic DNS (brain fog due to the illness).

So Dynamic DNS and CG-Nat can be included in the same service or are they 2 different ways of handling IP address ranges used by the ISP?

Thank you all. :-)

Hi as others have said its a provisioning issue on Sparks/BP side you need to call them and say its changing every 4hrs and they will correct from their end.

Dynamic DNS is a service you can setup to track your connections public IP, this has nothing to do with your RSP other than they cause the IP to change, but you provide the service to track it and resolve to a consistant DNS record.

CG-NAT is something totally different and not used or provided on fixed line services by Spark/BP. CG-NAT is where the RSP provides you with a non public IP address that sit's behind a real Public IP and is NAT'd between them, , hundreds of other users will be sharing that public IP, its a method of overcoming a IPv4 public address shortage, Spark/BP and for that matter Voda have more public IP than a goose can sh1t so for them not a problem, most other 2nd/3rd tier RSP's do have a shortage or at least prefer to conserve what they have, therefore have utilised CG-NAT to achieve that conservation.

CG-NAT is used on Spark/Skinny and Voda/2D moblile networks, this is done for other engineering convieniences, along with IP conservation, although Spark and Voda at least can readily provide both public IP and CG-NAT on their mobile networks with ready ease.

Cyril

allio

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#2686973 6-Apr-2021 08:15

Yep, I had this issue when I switched to Skinny. One email and it was promptly sorted. Mention that your connection is dropping every four hours on the dot and they will immediately know what is going on.

With Bigpipe you receive a public (i.e. not CG-NAT) dynamic (i.e. not static) IP address. It will change on occasion, but in practice that should be weeks or months apart. The four hour issue you are having is totally separate.

TeaLeaf

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#2687062 6-Apr-2021 09:58

allio:

With Bigpipe you receive a public (i.e. not CG-NAT) dynamic (i.e. not static) IP address. It will change on occasion, but in practice that should be weeks or months apart. The four hour issue you are having is totally separate.

Thanks all.

So nothing I can do to fix Authentication issues at my end? I have emailed them about it, but as was last night not expecting quick reply (it is BP).

So to confirm, I should be on Dynamic IP but not using CG-NAt?

CG-Nat is not what I will have been given, the issue is authentication dropping out etc

The reason I havnt complained is simply I have not been using services that have required a regular IP etc, ie Netflix doesnt care.

I moved physical location, but plan stayed the same, I got a new router from BP and just plugged and played, so never thought it was unusual my IP was changing twice a day minimum.

I just checked and its changed again this morning.

How I know it changes every 6 hours or less, is the service I am using will stop working and I will have to refresh that service. Frustrating but thought, oh this is Dynamic IP for ya, being shared IP etc, assumed that was normal.

Im on BP 100/20 plan. Will post router model asap.

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RunningMan

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#2687067 6-Apr-2021 10:07

Contact Bigpipe. This is a provisioning issue, anonymous profile. I'm sure @BarTender will have a laugh about this.

freitasm

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#2687068 6-Apr-2021 10:08

And that's why my first line of questioning was about frequency of these drops.

TeaLeaf:

So nothing I can do to fix Authentication issues at my end? I have emailed them about it, but as was last night not expecting quick reply (it is BP).

No, nothing you can do on your side. They have to fix on their side.

TeaLeaf:

So to confirm, I should be on Dynamic IP but not using CG-NAt?

CG-Nat is not what I will have been given, the issue is authentication dropping out etc

The reason I havnt complained is simply I have not been using services that have required a regular IP etc, ie Netflix doesnt care.

If you want to have a static IP you have to request - and in some cases pay for it (some ISPs charge one off fee, some ISPs charge a monthly fee).

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cbrpilot

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#2687070 6-Apr-2021 10:10

TeaLeaf:

So nothing I can do to fix Authentication issues at my end? I have emailed them about it, but as was last night not expecting quick reply (it is BP).

So to confirm, I should be on Dynamic IP but not using CG-NAt?

Nothing you can do on your end to fix the 4 hour kick (if that is indeed the issue). Let me know if you haven't heard from Bigpipe by end of day today and I'll see what I can do.

Bigpipe do not do CG-NAT - so Dynamic IP is what you should have.

My views are my own, and may not necessarily represent those of my employer.

cbrpilot

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#2687071 6-Apr-2021 10:12

RunningMan:

I'm sure @BarTender will have a laugh about this.

Not sure why he'd be laughing? Everything is working as designed.

My views are my own, and may not necessarily represent those of my employer.

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