AWS Elastic IP architecture

Blair Trosper blair.trosper at
Sat May 30 21:23:57 UTC 2015

Oh, and the only thing dual stack about EC2 Classic was ELBs (elastic load
balancers).  Instances had no means of IPv6 communication except via an
ELB.  That
is the FULL extent of IPv6 implementation on AWS at present...and most
people do not have EC2 classic.

On Sat, May 30, 2015 at 4:20 PM, Blair Trosper <blair.trosper at>

> Only EC2 classic has dual stack anything.  VPC load balancers (and,
> indeed, everything about VPC) is IPv4 only.
> And EC2 classic is being phased out, so dualstack is sort of dying on
> AWS.  However, I do have some solid information that they're scrambling to
> retrofit, but seeing
> as how we know AWS operates internally (compartmentalizing information to
> the point of paranoia), I reckon it will be another year or two before we
> even see IPv6
> support extend to CloudFront (their CDN) endpoints.
> Don't hold your breath on seeing v6 inside VPC/EC2 anytime what
> I was told.
> On Sat, May 30, 2015 at 3:49 PM, Owen DeLong <owen at> wrote:
>> >
>> >
>> > Amazon doesn't even offer a v4/v6 LoadBalancer service right? (I had
>> > thought they did, but I guess I'm mis-remembering)
>> They sort of do, but it’s utterly incompatible with all of their modern
>> capabilities. You have to use some pretty antiquated VM provisioning and
>> such to use it if I understood people correctly.
>> Owen

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