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Aspiring Contributor
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Message 1 of 9

BT IPv6 Rollout - Subnet Size?

I've read that BT plan to roll out IPv6 to most users this year.

 

Does anyone know what subnet size they are giving each user (48/56/64)?

 

It not a practicle query for me, just interested.

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Distinguished Sage
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Message 2 of 9

Re: BT IPv6 Rollout - Subnet Size?

Very little information around at the moment.
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BT Expert
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Message 3 of 9

Re: BT IPv6 Rollout - Subnet Size?

Don't quote me on it but I think they have been looking at allocating a /56 IPv6 address to the CPE.

 

Though the deployment strategy may have changed.

 

I believe others in the industry are doing the same.

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Contributor
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Message 4 of 9

Re: BT IPv6 Rollout - Subnet Size?

I think it's likely to be a /56. That's what most ISP's who currently offer IPv6 dish out.

More than enough. Only very large organisations need /48.
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Expert
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Message 5 of 9

Re: BT IPv6 Rollout - Subnet Size?


@Breed wrote:
I think it's likely to be a /56. That's what most ISP's who currently offer IPv6 dish out.


 

 

Yeah, I think most consumers will be happy enough with a /56 which equates to 4,722,366,482,869,645,213,696 IP addresses. 

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Expert
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Message 6 of 9

Re: BT IPv6 Rollout - Subnet Size?

To be fair how many customers are going to segment there internal home network? 

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Expert
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Message 7 of 9

Re: BT IPv6 Rollout - Subnet Size?


@Jonkarra wrote:

To be fair how many customers are going to segment there internal home network? 


 

 

They don't need to, the IPv6 addresses will be issued to IPv6-compatible devices on the LAN automatically.

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Expert
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Message 8 of 9

Re: BT IPv6 Rollout - Subnet Size?

....... I think they have been looking at allocating a /56 IPv6 address to the CPE.

 

BT's Simon Challinor also says /56 so I think your on safe ground there James-C 🙂   ( Sky are also /56)

 

Some good presentations about BT's IPv6 over on  Ipv6 Council's (uk) website.

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Expert
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Message 9 of 9

Re: BT IPv6 Rollout - Subnet Size?

What I'm saying is that most people as things stand will never use more than a flat subnet at home however it's good that for those that need it and also to future proof that/56 is allocated rather than a /64.

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