user83726: I'm trying to run a regtest bitcoind node but I'm always receiving the following error 

connect() to [2a05:d01c:a35:2902:6e18:7290:ff27:e9aa]:18444 failed:
  Cannot assign requested address (99)

My config:
bitcoind -printtoconsole -regtest=1 -rpcallowip=::/0 -rpcauth="...."

I'm running the node with through docker with the following image https://hub.docker.com/r/ruimarinho/bitcoin-core/
Thanks by advance for your answer.

user87499: First of all check that your system support IpV6.
Run this:
test -f /proc/net/if_inet6 && echo "IPv6 supported" || echo "IPv6 not supported"

Then make sure to bind to ::ffff:0.0.0.0

83726: <p>I'm trying to run a regtest bitcoind node but I'm always receiving the following error </p>

<blockquote>
  <p>connect() to [2a05:d01c:a35:2902:6e18:7290:ff27:e9aa]:18444 failed:
  Cannot assign requested address (99)</p>
</blockquote>

<p>My config:</p>

<pre><code>bitcoind -printtoconsole -regtest=1 -rpcallowip=::/0 -rpcauth="...."
</code></pre>

<p>I'm running the node with through docker with the following image <a href="https://hub.docker.com/r/ruimarinho/bitcoin-core/" rel="nofollow noreferrer">https://hub.docker.com/r/ruimarinho/bitcoin-core/</a></p>

<p>Thanks by advance for your answer.</p>
 87499: <p>First of all check that your system support IpV6.
Run this:</p>

<pre><code>test -f /proc/net/if_inet6 &amp;&amp; echo "IPv6 supported" || echo "IPv6 not supported"
</code></pre>

<p>Then make sure to bind to <code>::ffff:0.0.0.0</code></p>
