IPV6 Networking - Error: "web server is unreachable"

[danilomartinelli]

I’m trying to enable server accessibility for IPv6

I have a EC2 instance (IPV6 Enabled) with a docker container running caddy and another container running my API. I have added on Cloudflare a AAAA record to my ipv6 address.

When I tested it in this link IPv6 test - web site reachability, it worked in the first step but, in the second step, has an error: “web server is unreachable : Connection timed out”. My caddy image:

Caddyfile
import sites/*.conf

sites/catsitter-api.dizzi.com.br.conf

   catsitter-api.dizzi.com.br {
        import _tls
        proxy / cat-sitter-api:4000 {
            websocket
        }
    }

_tls

tls {
  protocols tls1.0 tls1.2
  key_type rsa2048
  dns cloudflare
  max_certs 99999
}

Everything works normaly when I access my projects in a ipv4 network.