Prisma Access
Explicit Proxy and GlobalProtect: How It Works
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Prisma Access Docs
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5.2 Preferred and Innovation
- 5.2 Preferred and Innovation
- 5.1 Preferred and Innovation
- 5.0 Preferred and Innovation
- 4.2 Preferred
- 4.1 Preferred
- 4.0 Preferred
- 3.2 Preferred and Innovation
- 3.1 Preferred and Innovation
- 3.0 Preferred and Innovation
- 2.2 Preferred
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- Allocate Licenses for Prisma Access (Managed by Strata Cloud Manager)
- Plan Service Connections for Prisma Access (Managed by Strata Cloud Manager) and Add-ons
- Add Additional Locations for Prisma Access (Managed by Strata Cloud Manager) and Add-ons
- Enable Available Add-ons for Prisma Access (Managed by Strata Cloud Manager)
- Enable Dynamic Privilege Access for Prisma Access (Managed by Strata Cloud Manager)
- Search for Subscription Details
- Share a License for Prisma Access (Managed by Strata Cloud Manager) and Add-ons
- Increase Subscription Allocation Quantity
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- Activate a License for Prisma Access (Managed by Strata Cloud Manager) and Prisma SD-WAN Bundle
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- Onboard Prisma Access
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4.0 & Later
- 4.0 & Later
- 3.2 Preferred and Innovation
- 3.1 Preferred and Innovation
- 3.0 Preferred and Innovation
- 2.2 Preferred
- Prisma Access China
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- Set Up Prisma Access
- Configure the Prisma Access Service Infrastructure
- Remote Networks: IPSec Termination Nodes and Service IP Addresses
- Remote Networks: IP Address Changes Related To Bandwidth Allocation
- Remote Networks: Service IP Address and Egress IP Address Allocation
- API Examples for Retrieving Prisma Access IP Addresses
- Get Notifications When Prisma Access IP Addresses Change
- Prisma Access Zones
- DNS for Prisma Access
- High Availability for Prisma Access
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- Enable ZTNA Connector
- Delete Connector IP Blocks
- Set Up Auto Discovery of Applications Using Cloud Identity Engine
- Private Application Target Discovery
- Security Policy for Apps Enabled with ZTNA Connector
- Monitor ZTNA Connector
- View ZTNA Connector Logs
- Preserve User-ID Mapping for ZTNA Connector Connections with Source NAT
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- Enable Dynamic Privilege Access for Prisma Access Through Common Services
- Authorize User Group Mapping in Cloud Identity Engine for Dynamic Privilege Access
- Enable the Access Agent
- Set Up the Agent Infrastructure for Dynamic Privilege Access
- Create a Snippet
- Create a Project
- Traffic Steering for Dynamic Privilege Access
- Push the Prisma Access Agent Configuration
- Download the Dynamic Privilege Access Enabled Prisma Access Agent Package
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- Install the Prisma Access Agent
- Log in to the Dynamic Privilege Access Enabled Prisma Access Agent
- Change Preferences for the Dynamic Privilege Access Enabled Prisma Access Agent
- Connect the Dynamic Privilege Access Enabled Prisma Access Agent to a Different Location
- Switch to a Different Project
- Connect the Dynamic Privilege Access Enabled Prisma Access Agent to a Different Server
- Disable the Dynamic Privilege Access Enabled Prisma Access Agent
- Switch Between the Prisma Access Agent and GlobalProtect App
- View and Monitor Dynamic Privilege Access Users
- View and Monitor Dynamic Privilege Access Projects
- App Acceleration in Prisma Access
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- Planning Checklist for GlobalProtect on Prisma Access
- Set Up GlobalProtect Mobile Users
- GlobalProtect — Customize Tunnel Settings
- GlobalProtect — Customize App Settings
- Ticket Request to Disable GlobalProtect
- GlobalProtect Pre-Logon
- GlobalProtect — Clientless VPN
- Monitor GlobalProtect Mobile Users
- How the GlobalProtect App Selects Prisma Access Locations for Mobile Users
- Allow Listing GlobalProtect Mobile Users
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- Explicit Proxy Configuration Guidelines
- GlobalProtect in Proxy Mode
- GlobalProtect in Tunnel and Proxy Mode
- Private IP Address Visibility and Enforcement for Agent Based Proxy Traffic
- SAML Authentication for Explicit Proxy
- Set Up Explicit Proxy
- Cloud Identity Engine Authentication for Explicit Proxy Deployments
- Proxy Mode on Remote Networks
- How Explicit Proxy Identifies Users
- Explicit Proxy Forwarding Profiles
- PAC File Guidelines
- Explicit Proxy Best Practices
- Monitor and Troubleshoot Explicit Proxy
- Block Settings for Explicit Proxy
- Use Special Objects to Restrict Explicit Proxy Internet Traffic to Specific IP Addresses
- Access Your Data Center Using Explicit Proxy
- App-Based Office 365 Integration with Explicit Proxy
- Configure Proxy Chaining with Blue Coat Proxy
- IP Address Optimization for Explicit Proxy Users- Proxy Deployments
- DNS Resolution for Mobile Users—Explicit Proxy Deployments
- View User to IP Address or User Groups Mappings
- Report Mobile User Site Access Issues
- Enable Mobile Users to Access Corporate Resources
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- Planning Checklist for Remote Networks
- Allocate Remote Network Bandwidth
- Onboard a Remote Network
- Connect a Remote Network Site to Prisma Access
- Enable Routing for Your Remote Network
- Onboard Multiple Remote Networks
- Configure Remote Network and Service Connection Connected with a WAN Link
- Remote Networks—High Performance
- Integrate a Shared Desktop VDI with Prisma Access Using Terminal Server
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- Multitenancy Configuration Overview
- Plan Your Multitenant Deployment
- Create an All-New Multitenant Deployment
- Enable Multitenancy and Migrate the First Tenant
- Add Tenants to Prisma Access
- Delete a Tenant
- Create a Tenant-Level Administrative User
- Sort Logs by Device Group ID in a Multitenant Deployment
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- Add a New Compute Location for a Deployed Prisma Access Location
- How BGP Advertises Mobile User IP Address Pools for Service Connections and Remote Network Connections
- Proxy Support for Prisma Access and Strata Logging Service
- Block Incoming Connections from Specific Countries
- Prisma Access for No Default Route Networks
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- Default Routes With Prisma Access Traffic Steering
- Traffic Steering in Prisma Access
- Traffic Steering Requirements
- Default Routes with Traffic Steering Example
- Default Routes with Traffic Steering Direct to Internet Example
- Default Routes with Traffic Steering and Dedicated Service Connection Example
- Prisma Access Traffic Steering Rule Guidelines
- Configure Zone Mapping and Security Policies for Traffic Steering Dedicated Connections
- Configure Traffic Steering in Prisma Access
- Preserve User-ID and Device-ID Mapping for Service Connections with Source NAT
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- Prisma Access Internal Gateway
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- Configure Privileged Remote Access Settings
- Set Up the Privileged Remote Access Portal
- Configure Applications for Privileged Remote Access
- Set Up Privileged Remote Access Profiles
- Define Permissions for Accessing Privileged Remote Access Apps
- Configure Split Tunneling for Privileged Remote Access Traffic
- Manage Privileged Remote Access Connections
- Use Privileged Remote Access
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- Integrate Prisma Access With Other Palo Alto Networks Apps
- Integrate Third-Party Enterprise Browser with Explicit Proxy
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- Connect your Mobile Users in Mainland China to Prisma Access Overview
- Configure Prisma Access for Mobile Users in China
- Configure Real-Name Registration and Create the VPCs in Alibaba Cloud
- Attach the CEN and Specify the Bandwidth
- Create Linux Instances in the Alibaba Cloud VPCs
- Configure the Router Instances
- Onboard the GlobalProtect Gateway and Configure the Prisma Access Portal
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- INC_CIE_AGENT_DISCONNECT
- INC_CIE_DIRECTORY_DISCONNECT
- INC_GLOBALPROTECT_GW_USER_AUTH_ TIMEOUT_FAILURES_COUNT_EXCEEDED_ ABOVE_BASELINE_ALL_PA_LOCATIONS
- INC_GLOBALPROTECT_GW_USER_AUTH_ TIMEOUT_FAILURES_COUNT_EXCEEDED_ ABOVE_BASELINE_PER_PA_LOCATION
- INC_GLOBALPROTECT_PORTAL_AUTH_ TIMEOUT_FAILURES_COUNT_EXCEEDED_ ABOVE_BASELINE_ALL_PA_LOCATIONS
- INC_GLOBALPROTECT_PORTAL_AUTH_ TIMEOUT_FAILURES_COUNT_EXCEEDED_ ABOVE_BASELINE_PER_PA_LOCATION
- INC_PORTAL_CLIENTLESS_VPN_AUTH_ TIMEOUT_FAILURES_COUNT_EXCEEDED_ ABOVE_BASELINE_ALL_PA_LOCATIONS
- INC_PORTAL_CLIENTLESS_VPN_AUTH_ TIMEOUT_FAILURES_COUNT_EXCEEDED_ ABOVE_BASELINE_PER_PA_LOCATION
- INC_MU_AUTH_SERVER_UNREACHABLE_ALL_ PA_LOCATIONS
- INC_MU_AUTH_SERVER_UNREACHABLE_PER_ PA_LOCATION
- INC_MU_DNS_SERVER_UNREACHABLE_ALL_ PA_LOCATIONS
- INC_MU_DNS_SERVER_UNREACHABLE_ PER_PA_LOCATION
- INC_RN_AUTH_SERVER_UNREACHABLE_ALL_ PA_LOCATIONS
- INC_RN_AUTH_SERVER_UNREACHABLE_PER_ PA_LOCATION
- INC_RN_DNS_SERVER_UNREACHABLE_ALL_ PA_LOCATIONS
- INC_RN_DNS_SERVER_UNREACHABLE_PER_ PA_LOCATION
- INC_RN_ECMP_TUNNEL_RTT_EXCEEDED_ BASELINE
- INC_RN_PRIMARY_WAN_TUNNEL_RTT_ EXCEEDED_BASELINE
- INC_RN_SECONDARY_TUNNEL_DOWN
- INC_RN_SECONDARY_WAN_TUNNEL_RTT_ EXCEEDED_BASELINE
- INC_RN_SITE_CAPACITY_PREDICTION
- INC_SC_PRIMARY_WAN_TUNNEL_RTT_ EXCEEDED_BASELINE
- INC_SC_SECONDARY_WAN_TUNNEL_RTT_ EXCEEDED_BASELINE
- INC_SC_SITE_CAPACITY_PREDICTION
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- INC_CERTIFICATE_EXPIRY
- INC_GP_CLIENT_VERSION_UNSUPPORTED
- INC_MU_IP_POOL_BLOCK_UTILIZATION_ EXCEEDED_CAPACITY
- INC_MU_IP_POOL_BLOCK_UTILIZATION_ EXCEEDED_THRESHOLD
- INC_PA_INFRA_DEGRADATION
- INC_PA_SERVICE_DEGRADATION_PA_LOCATION
- INC_PA_SERVICE_DEGRADATION_RN_ SITE_CONNECTIVITY
- INC_PA_SERVICE_DEGRADATION_SC_ CONNECTIVITY
- INC_RN_ECMP_BGP_DOWN
- INC_RN_ECMP_BGP_FLAP
- INC_RN_ECMP_PROXY_TUNNEL_DOWN
- INC_RN_ECMP_PROXY_TUNNEL_FLAP
- INC_RN_ECMP_TUNNEL_DOWN
- INC_RN_ECMP_TUNNEL_FLAP
- INC_RN_PRIMARY_WAN_BGP_FLAP
- INC_RN_PRIMARY_WAN_PROXY_TUNNEL_DOWN
- INC_RN_PRIMARY_WAN_PROXY_TUNNEL_FLAP
- INC_RN_PRIMARY_WAN_TUNNEL_DOWN
- INC_RN_PRIMARY_WAN_TUNNEL_FLAP
- INC_RN_SECONDARY_WAN_BGP_DOWN
- INC_RN_SECONDARY_WAN_BGP_FLAP
- INC_RN_SECONDARY_WAN_PROXY_TUNNEL_DOWN
- INC_RN_SECONDARY_WAN_PROXY_TUNNEL_FLAP
- INC_RN_SECONDARY_WAN_TUNNEL_DOWN
- INC_RN_SECONDARY_WAN_TUNNEL_FLAP
- INC_RN_SITE_DOWN
- INC_RN_SITE_LONG_DURATION_CAPACITY_ EXCEEDED_THRESHOLD
- INC_RN_SITE_LONG_DURATION_EXCEEDED_ CAPACITY
- INC_RN_SPN_LONG_DURATION_CAPACITY_EXCEEDED _THRESHOLD
- INC_RN_SPN_LONG_DURATION_EXCEEDED_ CAPACITY
- INC_SC_PRIMARY_WAN_BGP_DOWN
- INC_SC_PRIMARY_WAN_BGP_FLAP
- INC_SC_PRIMARY_WAN_PROXY_TUNNEL_DOWN
- INC_SC_PRIMARY_WAN_PROXY_TUNNEL_FLAP
- INC_SC_PRIMARY_WAN_TUNNEL_DOWN
- INC_SC_PRIMARY_WAN_TUNNEL_FLAP
- INC_SC_SECONDARY_WAN_BGP_DOWN
- INC_SC_SECONDARY_WAN_BGP_FLAP
- INC_SC_SECONDARY_WAN_PROXY_TUNNEL_DOWN
- INC_SC_SECONDARY_WAN_PROXY_TUNNEL_FLAP
- INC_SC_SECONDARY_WAN_TUNNEL_DOWN
- INC_SC_SECONDARY_WAN_TUNNEL_FLAP
- INC_SC_SITE_DOWN
- INC_SC_SITE_LONG_DURATION_CAPACITY_ EXCEEDED_THRESHOLD
- INC_SC_SITE_LONG_DURATION_EXCEEDED_ CAPACITY
- INC_ZTNA_CONNECTOR_APP_STATUS_DOWN
- INC_ZTNA_CONNECTOR_APP_STATUS_DOWN_PARTIAL
- INC_ZTNA_CONNECTOR_CPU_HIGH
- INC_ZTNA_CONNECTOR_MEMORY_HIGH
- INC_ZTNA_CONNECTOR_TUNNEL_DOWN
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- AL_CIE_AGENT_DISCONNECT
- AL_CIE_DIRECTORY_DISCONNECT
- AL_MU_IP_POOL_CAPACITY
- AL_MU_IP_POOL_USAGE
- AL_RN_ECMP_BGP_DOWN
- AL_RN_ECMP_BGP_FLAP
- AL_RN_PRIMARY_WAN_BGP_DOWN
- AL_RN_PRIMARY_WAN_BGP_FLAP
- AL_RN_PRIMARY_WAN_TUNNEL_DOWN
- AL_RN_PRIMARY_WAN_TUNNEL_FLAP
- AL_RN_SECONDARY_WAN_BGP_DOWN
- AL_RN_SECONDARY_WAN_BGP_FLAP
- AL_RN_SECONDARY_WAN_TUNNEL_DOWN
- AL_RN_SECONDARY_WAN_TUNNEL_FLAP
- AL_RN_SITE_DOWN
- AL_RN_SITE_LONG_DURATION_CAPACITY_ EXCEEDED_THRESHOLD
- AL_RN_SITE_LONG_DURATION_EXCEEDED_ CAPACITY
- AL_RN_SPN_LONG_DURATION_CAPACITY_ EXCEEDED_THRESHOLD
- AL_SC_PRIMARY_WAN_BGP_DOWN
- AL_SC_PRIMARY_WAN_BGP_FLAP
- AL_SC_PRIMARY_WAN_TUNNEL_DOWN
- AL_SC_PRIMARY_WAN_TUNNEL_FLAP
- AL_SC_SECONDARY_WAN_BGP_DOWN
- AL_SC_SECONDARY_WAN_BGP_FLAP
- AL_SC_SECONDARY_WAN_TUNNEL_DOWN
- AL_SC_SECONDARY_WAN_TUNNEL_FLAP
- AL_SC_SITE_DOWN
- AL_SC_SITE_LONG_DURATION_CAPACITY_ EXCEEDED_THRESHOLD
- AL_SC_SITE_LONG_DURATION_EXCEEDED_CAPACITY
- AL_ZTNA_CONNECTOR_APP_STATUS_DOWN
- AL_ZTNA_CONNECTOR_APP_STATUS_DOWN_PARTIAL
- AL_ZTNA_CONNECTOR_CPU_HIGH
- AL_ZTNA_CONNECTOR_MEMORY_HIGH
- AL_ZTNA_CONNECTOR_TUNNEL_DOWN
- New Features in Incidents and Alerts
- Known Issues
Explicit Proxy and GlobalProtect: How It Works
See some examples of using GlobalProtect with Explicit
Proxy in a mobile users deployment.
Where Can I Use This? | What Do I Need? |
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Before you decide what applications or traffic you should protect
with Explicit Proxy and which applications you should protect with
either GlobalProtect or a third-party VPN, you should understand
how GlobalProtect and Prisma Access make their forwarding decisions
based on the Explicit Proxy and VPN configuration. The examples
in this section assume that you have already deployed Explicit Proxy
and GlobalProtect into your organization’s network and have configured
GlobalProtect split tunnel options.
The following figure shows the process.

When a mobile user requests an private or internet-based resource
or app, the request is evaluated by the Explicit Proxy PAC file
on the endpoint.
- A return "DIRECT"; function in the PAC file causes the traffic specified in the expression to bypass Explicit Proxy processing.Explicit Proxy provides you with a sample PAC file that uses the return "DIRECT"; function with IP addresses and URLs. See Set Up Your Explicit Proxy PAC File to see the contents of the PAC file and a description of how to use it.
- A dnsresolve(host) function in the PAC file forces the endpoint to make a DNS query to resolve a hostname to an IP address. This query then follows the VPN policy (for example, split tunnel or split DNS) for forwarding the DNS request to the destination DNS server.The PAC file provided with Explicit Proxy uses dnsresolve(host), return"DIRECT";, and private IP addresses together in an expression. If, after a DNS lookup, the returned IP address is included with the private IP addresses in the expression, the traffic associated with the private IP address bypasses Explicit Proxy processing.
- Traffic that is specified in the PAC file as return"PROXY sitename:8080"; is forwarded to Explicit Proxy.
After the web request is evaluated based on the conditions in
the PAC file, it is then sent to the GlobalProtect or third-party
VPN configuration on the endpoint for processing and the traffic
is evaluated in the GlobalProtect app for split tunnel configuration
options. You can split traffic based on domain (URL) or application or subnet. If you have configured split DNS options in GlobalProtect,
traffic is also evaluated based on those DNS options.
After the traffic is processed, it is then sent to GlobalProtect,
direct to the internet, or to Explicit Proxy, based on the PAC file
and VPN processing.
The following figure shows a mobile user attempting to access
a private resource using the URL internal-app.corp.com.
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- The PAC file has the following configuration to allow internal-app.corp.com to bypass Explicit Proxy.
/* Bypass internal URL */ if (shExpMatch(host, "*internal-app.corp.com")) return "DIRECT";
- When the mobile user requests internal-app.corp.com from their browser, the browser evaluates the conditions in the PAC file. Based on that evaluation, the browser does not forward the request to the proxy and sends it directly to the GlobalProtect app.
- GlobalProtect notes that internal-app.corp.com is listed in the Include Domain and sends it through the VPN tunnel.
- GlobalProtect sends the request to the resource in internal-app.corp.com based on the configuration options in GlobalProtect.
You might want to configure some resources, such as login resources,
so that they do not use either Explicit Proxy or the GlobalProtect
or third-party VPN for processing. The following figure shows a
user logging in to Microsoft Online by entering login.microsoftonline.com from
their browser.
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- The PAC file has the following configuration to allow internal-app.corp.com to bypass Explicit Proxy traffic.
/* Bypass internal URL */ if (shExpMatch(host, "login.microsoftonline.com")) return "DIRECT";
- When the mobile user requests login.microsoftonline.com from their browser, the PAC file evaluates the request from the PAC file in the mobile user’s endpoint and then sends it to the GlobalProtect VPN configuration (GlobalProtect in this case) for processing.
- The GlobalProtect app notes that login.microsoftonline.com is listed in the Exclude Domain.
- GlobalProtect bypasses the VPN and sends the request direct to the internet, based on the configuration options in GlobalProtect.