o allow ambient workloads to communicate with them.</p><p>For example, the following <code>NetworkPolicy</code> will block incoming <span class=term data-title=HBONE data-body='<p>HBONE (or HTTP-Based Overlay Network Environment) is a secure tunneling protocol used between Istio components.
<a href="/docs/ambient/architecture/hbone/">Learn more about HBONE</a>.</p>
'>HBONE</span> traffic to <code>my-app</code> on port 15008:</p><pre><code class=language-yaml data-expandlinks=true data-repo=istio>apiVersion: