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Sky Broadband starting to share IPv4 addresses between users

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hadn't heard of map-t either until now. this sucks. but im not using their router anyway. is this on all of sky? I am able to port-forward whatever I want but as mentioned, i'm not using their router. at all.
This is the way forward for the industry. They aren't doing it to save addresses, they're doing it because they want to run IPv6 only as much as possible which is fantastic. Great migration strategy.
 
This is the way forward for the industry. They aren't doing it to save addresses, they're doing it because they want to run IPv6 only as much as possible which is fantastic. Great migration strategy.
They do mention the simplification operationally of running IPv6 only in their core but one of the reasons they are using MAP-T is to save IPv4 addresses; the linked presentations clearly state they don’t have enough IPv4 to meet their projected growth.
 
Very interesting video thank you @flavione , and also @XGS_Is_On for explaining the end game is a single stacked IPv6 core. So interesting to learn.

Also interesting how IPv4 got wasted as duplicate LIR's had to be registered by some entities to get the IPv6 they needed (which before they ran out consumed a /22 IPv4).

Pfsense dev's take note it seems NAT46 and NAT64 are useful.

Also yep as @hants said, because this was setup as a new network they actually didnt have the means to allocate every subscriber their own IPv4, so that was a factor in this network setup.

Can anyone attend these events? as they seem really nice for learning about stuff related to the broadband sector in general. Although might not be a need if its all youtube.

I feel this makes my initial thoughts on direct IPv4 allocation to 3rd party end user kit incorrect.
 
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They do mention the simplification operationally of running IPv6 only in their core but one of the reasons they are using MAP-T is to save IPv4 addresses; the linked presentations clearly state they don’t have enough IPv4 to meet their projected growth.

Ah yes, that was for Sky Italia, AS201278. They were brand new not long ago so really struggling for addresses.

Sky Broadband / AS5607 should have close to a couple of million left. Just shy of 8.2 million addresses available and less than 6 million customers.

The linked presentations are all for Sky Italia. No prospect of exhaustion of the UK pool but would for sure make sense to save them if they can!
 
The linked presentations are all for Sky Italia. No prospect of exhaustion of the UK pool but would for sure make sense to save them if they can!
It saves them a lot of addresses even for infra, because you can remove IPv4 altogether from all metro and access.


Upping only to add, once on the rollout was complete in Italy (after the video that was linked) they just turned off completely dual stack, if you connect something that's not MAP compatible you will only get an IPv6 prefix, so I assume once they roll out this to the whole UK they might do the same.
But more and more support is coming - other than the mentioned OpenWRT and all the hardware where it runs, FritzBox also is testing a labor firmware with MAP-T/E.
In fact, Richard Patterson commented on LinkedIn on posts saying he's testing himself.
 
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