title: Access an App Service integrated with a Virtual Network from other Azure resources
body: <p>I must have a Web API deployed inside an App Service that must be able to connect to resources located inside an on-premise environment (site-to-site connection).</p>
  
  <p>For this purpose i would set up a Virtual Network with a VPN Gateway and a Local VPN Gateway properly configured (for the site-to-site part).
  Then i would integrate my App Service with this VNET.</p>
  
  <p>My questions are:</p>
  
  <p>1) If my app service is integrated with this VNET, is it able to communicate with other PAAS resources like <strong>Azure Storage</strong>, <strong>Azure SQL Database</strong> or <strong>Function Apps</strong> without doing any other configuration steps or i need to do something more?</p>
  
  <p>Essentially i need to understand if an App Service integrated with a VNET becomes isolated from other Azure resources that are not "part" of that VNET.</p>
  
  <p>2) An Azure Function deployed into the <strong>same</strong> App Service can call the REST endpoints exposed by the Web API without doing any other configuration steps or i need to integrate the Function App with the same VNET?</p>
  
  <p>Thank you for your help.</p>