pre><code class=language-bash data-expandlinks=true data-repo=istio>$ kubectl label --overwrite namespace default istio-injection=enabled
$ kubectl label --overwrite namespace dual-stack istio-injection=enabled
$ kubectl label --overwrite namespace ipv4 istio-injection=enabled
$ kubectl label --overwrite namespace ipv6 istio-injection=enabled
</code></pre></li><li><p>Create <code>tcp-echo</code> deployments in the namespaces:</p><pre><code class=language-bash data-expandlinks=true data-repo=istio>$ kubectl 