s?</span><div class=faq-block-question__icon><svg class="icon dropdown-arrow"><use xlink:href="/v1.16/img/icons.svg#dropdown-arrow"/></svg></div></div><div class=faq-block-answer><p>Both of these <code>DestinationRule</code> settings will send mutual TLS traffic.
With <code>ISTIO_MUTUAL</code>, Istio certificates will automatically be used.
For <code>MUTUAL</code>, the key, certificate, and trusted CA must be configured.
This allows initiating mutual TLS with non-Istio applications.</p></div></div><div clas