Technical reasons static IP costs more

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noroad

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#3266295 30-Jul-2024 12:09

Spaghetti:

Taking CG-NAT out of the picture. If you have one dynamically assigned public IP, vs one statically assigned IP, the resource cost is the same.

So why are we charged more?

Simple, if it was free everyone would expect a static ip. Dynamic users can be swapped to to cgnat if needed and 99% of people would have no clue.

Spaghetti

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#3266313 30-Jul-2024 12:44

Some good points have been raised for static IPv4 increased cost, namely:

IPv4 addresses are scarce and re-allocation is more difficult when static ranges are defined
There is sometimes a non-zero additional cost to routing/allocating/managing static IPv4

However, these doesn't apply to IPv6, where there are more than enough prefixes for everyone, and ISP's can easily get more.

In fact, RIPE says giving customers dynamic IPv6 is literally harmful due to renumbering issues, and should be avoided:

ripe.net - Best Current Operational Practice for Operators: IPv6 prefix assignment for end-users

So as I see it, NZ ISP's are implementing harmful bad practice for IPv6, then charging to fix it.

Behodar

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#3266314 30-Jul-2024 12:46

I wasn't aware that any NZ ISPs were issuing dynamic IPv6. Granted I've only had IPv6 with two of them, but in both cases they were static.

KiwiSurfer

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#3266317 30-Jul-2024 13:12

Behodar:

I wasn't aware that any NZ ISPs were issuing dynamic IPv6. Granted I've only had IPv6 with two of them, but in both cases they were static.

Could it be a case of a dynamic IP address being sticky? The pool is likely large enough that your IPv6 is unlikely to be released to another customer while you are offline and you just get your previous IPv6 back the next time you come online.

Behodar

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#3266319 30-Jul-2024 13:15

In both cases the provisioning documentation from the ISP has said "your IPv6 prefix is [blah]".

BlackrazorNZ

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#3266322 30-Jul-2024 13:20

KiwiSurfer:

Could it be a case of a dynamic IP address being sticky? The pool is likely large enough that your IPv6 is unlikely to be released to another customer while you are offline and you just get your previous IPv6 back the next time you come online.

I dunno - with only 4,722,366,482,869,645,213,696 addresses available on a /56 subnet, I don't know if I want to risk it... :)

Mighty Ape

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Spaghetti

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#3266372 30-Jul-2024 16:36

Behodar:

I wasn't aware that any NZ ISPs were issuing dynamic IPv6. Granted I've only had IPv6 with two of them, but in both cases they were static.

Please tell me which ISP's these are that issue static IPv6 prefixes.

Both 2degrees and Quic have told me they charge extra for "fixing" what shouldn't be broken to begin with.

RunningMan

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#3266374 30-Jul-2024 16:39

It's not broken. It is just they cannot provide a cast iron guarantee that the prefix will not change ever (because of the reasons already covered).

michaelmurfy

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#3266375 30-Jul-2024 16:42

Spaghetti: Both 2degrees and Quic have told me they charge extra for "fixing" what shouldn't be broken to begin with.

Quic have a solution - purchase a static, get a /56, sorted.

Not sure about 2degrees but they're a real consumer grade "bargain bin" ISP so you're expecting too much.

I don't think there is anything more to cover off in this thread and it is going around in circles now. The core question has been answered so lets just leave it here. Again if you feel this is easy then just start up an ISP and experience for yourself how easy it is.

Michael Murphy | https://murfy.nz
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