Disagree, and so does AWS. IPv6 has a huge utility: being a universal, inter-region management network (a network that unites traffic between regions on public and private netblocks). Plus, at least the CDN and ELBs should be dual-stack, since more and more ISPs are turning on IPv6. On Sun, May 31, 2015 at 8:40 AM, Owen DeLong <owen@delong.com> wrote:
I wasn’t being specific about VPC vs. Classic.
The support for IPv6 in Classic is extremely limited and basically useless for 99+% of applications.
I would argue that there is, therefore, effectively no meaningful support for IPv6 in AWS, period.
What you describe below seems to me that it would only make the situation I described worse, not better in the VPC world.
Owen
On May 31, 2015, at 4:23 AM, Andras Toth <diosbejgli@gmail.com> wrote:
Congratulations for missing the point Matt, when I sent my email (which by the way went for moderation) there wasn't a discussion about Classic vs VPC yet. The discussion was "no ipv6 in AWS" which is not true as I mentioned in my previous email. I did not state it works everywhere, but it does work.
In fact as Owen mentioned the following, I assumed he is talking about Classic because this statement is only true there. In VPC you can define your own IP subnets and it can overlap with other customers, so basically everyone can have their own 10.0.0.0/24 for example. "They are known to be running multiple copies of RFC-1918 in disparate localities already. In terms of scale, modulo the nightmare that must make of their management network and the fragility of what happens when company A in datacenter A wants to talk to company A in datacenter B and they both have the same 10-NET addresses"
Andras
On Sun, May 31, 2015 at 7:18 PM, Matt Palmer <mpalmer@hezmatt.org> wrote:
On Sun, May 31, 2015 at 01:38:05AM +1000, Andras Toth wrote:
Perhaps if that energy which was spent on raging, instead was spent on a Google search, then all those words would've been unnecessary.
Official documentation:
http://docs.aws.amazon.com/ElasticLoadBalancing/latest/DeveloperGuide/elb-in...
Congratulations, you've managed to find exactly the same info as Owen already covered:
"Load balancers in a VPC support IPv4 addresses only."
and
"Load balancers in EC2-Classic support both IPv4 and IPv6 addresses."
- Matt