GlobalProtect in Tunnel and Proxy Mode (Strata Cloud Manager)

1. Enable the Agent-based Proxy functionality for mobile users on Prisma Access.

   1. Enable explicit proxy.

      1. Select Configuration NGFW and Prisma AccessConfiguration ScopePrisma AccessExplicit Proxy.
      2. In the Infrastructure Settings area, click Setup Proxy Settings and specify an Explicit Proxy URL.
   2. Enable Agent Proxy , and optionally Enable Private IP based visibility and enforcement, and click Save.

   3. Choose the Prisma Access where you want to support mobile users.

      For the best user experience, if you're limiting the number of locations, choose locations that are closest to your end users. If a location isn't available in the country where your mobile users reside, choose a location that's closest to the mobile users.
   4. Create a Forwarding Profile to define the traffic you want to send through Explicit Proxy. While configuring the forwarding profile, bypass *.prismaaccess.com, *.rbi.io, and *.gpcloudservice.com domains.

   5. Attach the Forwarding Profile to your GlobalProtect app configuration.
   6. Select Configuration NGFW and Prisma AccessConfiguration ScopePrisma AccessExplicit ProxyAdvanced Security Settings Authentication Settings and add the domains you need to bypass.

      All requests to the proxy undergo authentication. However, if you're passing IdP flows through the proxy, then you need to bypass them for the authentication to be successful.

      In this example, we are bypassing the GlobalProtect portal and Okta, but please customize these to the IdPs that you use.

2. Configure Tunnel and Proxy mode for the GlobalProtect app on Prisma Access.

   In Tunnel and Proxy mode, the connect method you set only applies to the traffic tunnel through GlobalProtect. The agent-based proxy functionality provides always-on Internet security after the GlobalProtect tunnel is established, and this security persists even after a user disconnects from the GlobalProtect app.

   1. Select Configuration NGFW and Prisma AccessConfiguration ScopePrisma AccessGlobalProtectInfrastructureInfrastructure Settings and specify the Portal Name.

      • Default Domain—If you select this option, your portal hostname uses the default domain name: .gpcloudservice.com. In this case, simply enter a Portal Hostname to append to the default domain name. Prisma Access for Users will automatically create the necessary certificates and publish the hostname to public DNS servers.
      • Custom Domain—You can also customize the portal address if you want the domain in the portal hostname to match your company domain name (for example, myportal.mydomain.com).
   2. Enable mobile users to authenticate to Prisma Access.
   3. Enable GlobalProtect tunnel and proxy mode for Prisma Access in the GlobalProtect app settings to send internet traffic to the agent-based proxy.

      • Select ConfigurationNGFW and Prisma AccessConfiguration ScopePrisma AccessGlobalProtect.
      • On the GlobalProtect App tab, click Default to customize the app settings or Add App Settings add a new configuration.
      • Click Show Advanced Options and in the App Configuration section.
      • In the Proxy section set Agent Mode for Prisma Access to Tunnel and Proxy to instruct the GlobalProtect app to send the internet traffic to the explicit proxy on Prisma Access and private app traffic to the VPN. After you configure the Tunnel and Proxy mode on Prisma Access, users can securely access the internet via Prisma Access even when users disconnect or disable the GlobalProtect app.
      • (Optional) Configure the local proxy port. The port range is 1024 to 65534 and the default port is 9999. If the default port isn't available, GlobalProtect will try 10 other ports in the range of 9999 to 10009 and use the port that is available. You can also pick your own port number within the range.
      • (Optional) Configure PAC Auto-Configuration (PAC) File URL if you want to push the new PAC URL for the proxy settings to the endpoint. The PAC URL pushes to the endpoint once the user connects. When the user disconnects the GlobalProtect app, the endpoint proxy configurations are automatically disabled and reverting to the previous settings.
      • (Optional) Enable Allow User to Rediscover Network if you want the user to check the portal for any new settings.
      • (Optional) Configure GlobalProtect App Config Refresh Interval (hours). By default, the GlobalProtect client refreshes the cached portal configuration every 24 hours. You can change the refresh interval based on your business requirements.
      • Disable Set Up Tunnel Over Proxy (Windows & Mac Only).

   4. In the Split Tunnel configuration, exclude the Explicit Proxy FQDN and the PAC file FQDN.

      • Select ConfigurationNGFW and Prisma AccessConfiguration ScopePrisma AccessGlobalProtect.
      • On the GlobalProtect App tab, click Default to customize the Tunnel Settings or Add Tunnel Settings add a new configuration.
      • Under Exclude Traffic, Add Domain.
        Replace the FQDN in the image with your proxy FQDN.
3. Enable Always-On security by configuring the following settings on the Configuration NGFW andPrisma AccessConfiguration ScopePrisma AccessGlobalProtectGlobalProtect AppAdd App Settings page:

   1. Set Disable GlobalProtect to Disallow, Allow with Passcode, or Allow with Ticket.
   2. Disable Allow user to Sign Out from GlobalProtect App.
4. Configure decryption for Explicit Proxy traffic.

   • Select ConfigurationNGFW and Prisma AccessSecurity ServicesDecryption.

   • If you enable decryption, make sure you set up the decryption certificate as a trusted root CA.

5. Configure security policy rules for explicit proxy traffic.

   • Select ConfigurationNGFW and Prisma AccessSecurity ServicesSecurity Policy.
   • Follow the Internet Gateway Security Policy Best Practices.
6. (Optional) Configure the GlobalProtect app in Proxy and Tunnel mode in a non-default route network.

   • (Optional) Host a PAC file internally and add the Prisma Access explicit proxy FQDN as a proxy in the PAC file, or host the PAC file in a Forwarding Profile and add routes in your network for PAC service IP addresses.
   • Forward authentication requests to the internet for the portal and gateway FQDNs and for IdP URLs.
   • Set up routes to the explicit proxy FQDN or IP addresses on perimeter devices to allow users to access the internet via the explicit proxy.
   • (Optional) Add DNS records to resolve the Prisma Access explicit proxy FQDN to an internal IP address if users can’t resolve public domains in the branch network and add destination NAT for the internal IP address to the explicit proxy FQDN or IP address.
   • To enable users to access private apps directly when in the office:
     • Direct Access: Enable Internal Host Detection and keep the internal gateway list empty.
7. Click Save and Push Config to GlobalProtect and Explicit Proxy.
8. Verify and troubleshoot the agent proxy deployment.

   1. Verify the information about your network connection on the GlobalProtect app Connections tab under Settings.

      1. Open the GlobalProtect app.
      2. Select Settings to open the GlobalProtect Settings panel, and then select Connections.

   2. View and collect the GlobalProtect logs.

      View the PanGPS log to verify the proxy mode configuration on the GlobalProtect portal.

      You can verify that Proxy mode is configured by looking for the following event in the PanGPS log:

      OnProxyAgentMode: hybrid mode

      To view GlobalProtect logs in Prisma Access, select Incidents & AlertsLog Viewer and:

      • GlobalProtect, for authentication logs
      • Traffic and Decryption for user access logs

   Disconnect and Disable Tunnel and Proxy Mode with Always-On Connect Method

   Starting from GlobalProtect version 6.3.1, when you configure Tunnel and Proxy mode for the GlobalProtect app along with Always-On mode as the connect method and you want to disconnect the tunnel and proxy mode, you must perform the following steps:

   1. Disconnect the GlobalProtect app to disconnect the tunnel (VPN) connection. When you disconnect the app, the tunnel (VPN) connection gets disconnected and the app will still be connected through the proxy mode.
   2. Disable the GlobalProtect app to disconnect both the tunnel and proxy mode. When you disable the app, both the tunnel and proxy mode will be disconnected and the app will not be connected anymore.

   To disconnect and disable the GlobalProtect app configured with Tunnel and Proxy (hybrid mode) and Always-On connect method, you must:

   1. Disconnect the GlobalProtect app using the Disconnect option from the hamburger menu. When you disconnect the app, the tunnel (VPN) connection gets disconnected.
      After you disconnect the app, the VPN connection gets disconnected but the proxy mode is enabled. The app will still be connected through the proxy mode and the app displays the status as Enabled.

      If you want to reconnect the tunnel (VPN) connection, you can use the Connect option from the hamburger menu.

   2. Disable the app GlobalProtect app using the Disable option from the hamburger menu. After you disable the app, both the tunnel and proxy connection gets disconnected.

   The app will be disabled and it displays the status as Disabled.