ions to the upstream service.</p>

</td>
</tr>
</tbody>
</table>
</section>
<h3 id="TrafficPolicy-TunnelSettings">TunnelSettings</h3>
<section>
<table class="message-fields">
<thead>
<tr>
<th>Field</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr id="TrafficPolicy-TunnelSettings-protocol">
<td><div class="field"><div class="name"><code><a href="#TrafficPolicy-TunnelSettings-protocol">protocol</a></code></div>
<div class="type">string</div>
</div></td>
<td>
<p>Specifies which protocol to use for tunnelin