To meet the requirement of inspecting all endpoint internet traffic on FortiSASE while excluding Google Maps traffic from the FortiSASE VPN tunnel and redirecting it to the endpoint ' s physical interface, you should configure split tunneling. Split tunneling allows specific traffic to bypass the VPN tunnel and be routed directly through the endpoint ' s local interface.

Split Tunneling Configuration:

Split tunneling enables selective traffic to be routed outside the VPN tunnel.

By configuring the Google Maps Fully Qualified Domain Name (FQDN) as a split tunneling destination, you ensure that traffic to Google Maps bypasses the VPN tunnel and uses the endpoint ' s local interface instead.

Implementation Steps:

Access the FortiSASE endpoint profile configuration.

Add the Google Maps FQDN to the split tunneling destinations list.

This configuration directs traffic intended for Google Maps to bypass the VPN tunnel and be routed directly through the endpoint ' s physical network interface.

FortiSASE Secure Private Access (SPA) is designed to provide remote users with seamless and secure access to private applications hosted behind an organization ' s FortiGate Next-Generation Firewall (NGFW) or SD-WAN hubs. 2

Hub-and-Spoke Architecture: In this deployment model, the organization’s FortiGate (either a standalone NGFW or an SD-WAN hub) acts as the hub , while the global FortiSASE Security Points of Presence (PoPs) act as spokes . 3

IPsec and BGP Integration: The connectivity between the FortiSASE PoPs and the corporate hub is established via IPsec VPN tunnels . To manage routing and ensure that remote users can reach the correct internal subnets, Border Gateway Protocol (BGP) is used for dynamic route exchange. 4 This allows the hub to advertise internal prefixes to FortiSASE, enabling the PoPs to route user traffic effectively without requiring complex static route management.

Simplified Configuration: To reduce administrative overhead and prevent manual configuration errors on the FortiOS side, Fortinet introduced the SPA easy configuration key (also known as an invitation code or simplified SPA setup). An administrator generates this key in the FortiSASE portal and enters it on the FortiGate hub. This triggers the Fabric Overlay Orchestrator to automatically provision the necessary IPsec tunnels, BGP peerings, and firewall policies required for SPA connectivity.

According to the FortiSASE 25 Architecture Guide , this method is preferred over legacy VPNs because it supports both TCP and UDP traffic, integrates natively with existing SD-WAN deployments, and automatically finds the shortest path to applications using ADVPN (Auto-Discovery VPN) shortcuts where applicable.

According to the NSE7 SASE Enterprise Guide (Pages 64 & 153) , FortiSASE utilizes an intelligent engine to manage connectivity to private resources through various selection methods:

Hub Health and Priority: FortiSASE incorporates a built-in SD-WAN engine for intelligent routing selection among established IPsec links. The health check IP address periodically receives performance metrics, including jitter, latency, and packet loss, for each service connection. In this mode, FortiSASE evaluates the available hubs and selects the one with the highest priority (the most preferred value) within each POP, provided that the hub meets the defined service-level agreement (SLA) requirements . For this configuration to function correctly, both FortiSASE and the SPA hub must use the same Autonomous System Number (ASN).

BGP Multiple Exit Discriminator (MED): This method leverages the standard BGP MED attribute, which allows an autonomous system to signal its preferred entry point to a peer. FortiSASE learns the MED values advertised by the configured hubs. The architecture is designed so that the lower the MED value , the more preferred the path is to the receiving router. Consistent with the " Zero Trust " and " Secure Access " principles, even when using BGP MED, the selection is gated by the health engine; therefore, the hub is only selected if it also satisfies the configured SLA thresholds .

While SLA thresholds can be configured, the primary logic for hub selection focuses on how priority and dynamic routing attributes (like MED) interact with the real-time health of the tunnel.

In a FortiSASE deployment, Digital Experience Monitoring (DEM) is the primary diagnostic tool used to troubleshoot connectivity and performance issues specifically for a single user or endpoint.

End-to-End Visibility: DEM provides real-time, end-to-end visibility into the network path between the end-user ' s device and the application they are trying to reach. This is critical when only one user reports an issue, as it allows administrators to pinpoint whether the problem resides on the local device, the local ISP, the SASE backbone, or the destination application.

Performance Metrics: The DEM agent (often integrated with the FortiMonitor agent on the endpoint) collects granular performance metrics such as latency, jitter, packet loss, and RTT (Round Trip Time) . It also provides device-specific health data, including CPU and memory usage, to determine if the connectivity issue is actually caused by the remote computer ' s performance.

Hop-by-Hop Analysis: Unlike standard monitoring, DEM offers End-to-End Continuous Hop Analytics . This path monitoring visualizes every " hop " in the traffic route and highlights exactly where degraded service is occurring. For a single user experiencing issues while everyone else is fine, this tool immediately triangulates if a specific " problem hop " in their unique connection path is the cause.

Operational Comparison: * MDM (A) is used for managing device configurations and software distribution, not for real-time network performance troubleshooting.

Forensics (C) is a security-focused service used for investigating malware incidents or data breaches, not for measuring network latency.

SOCaaS (D) is a managed security service for threat monitoring and event triage; while it handles " security " connectivity issues (like a blocked IP), it is not a tool for performance metric evaluation.

IP Address Management (IPAM) in FortiSASE is responsible for automatically allocating subnets to various services, including VPN tunnels and Edge devices. When an administrator modifies the default IPAM configuration, they must adhere to specific architectural scaling requirements.

Subnet Requirements per PoP: FortiSASE architecture requires a minimum amount of address space to be available for each provisioned Security Point of Presence (PoP) to handle internal routing and endpoint assignments. For the IPAM engine to function correctly and distribute unique subnets across the global infrastructure, the pool must provide at least one /20 subnet per security PoP . If the available space is smaller than this per-PoP requirement, the allocation logic may fail or produce unpredictable routing behavior.

Impact of Excessive Exclusions: In the exhibit (image_578940.png), the customer has defined a large summary pool of 172.16.0.0/12. However, they have configured eight separate /15 excluded subnets: 172.16.0.0/15, 172.18.0.0/15, 172.20.0.0/15, 172.22.0.0/15, 172.24.0.0/15, 172.26.0.0/15, 172.28.0.0/15, and 172.30.0.0/15.

Calculating the Exhaustion: A /12 network contains exactly eight /15 blocks. By excluding all eight /15 ranges listed in the exhibit, the customer has effectively excluded 100% of the available addresses from the primary 172.16.0.0/12 pool.

Connectivity Problems: When the IPAM pool is exhausted or overly restricted, FortiSASE cannot assign valid, non-overlapping subnets to the PoPs. This leads to connectivity problems for remote users and can cause the system to " fall back " to ranges it believes are available, even if they were intended to be excluded, or simply fail to establish tunnels entirely.

To resolve this, the administrator must ensure that the excluded subnets do not consume the entire pool and that the remaining unexcluded space is large enough to provide a /20 block for every active PoP in their subscription.

In FortiSASE Secure Private Access (SPA) deployments, establishing a stable connection between the FortiSASE PoPs and the corporate FortiGate hub relies on two primary layers: the IPsec Tunnel and the BGP Peering .

Exhibit Analysis: The exhibit (image_577e17.jpg) shows the status of several Security PoPs (Singapore, Tokyo, Frankfurt, and San Jose) connected to an " FGT-Hub " .

Tunnel Status vs. BGP Status: For all listed PoPs, the Health Check IP Status and Tunnel status are both shown with a green " Up " icon. This confirms that the underlying IPsec connectivity and the physical path between the SASE cloud and the hub are functioning correctly.

Identifying the Failure: The BGP Peering State is reported as Active . In BGP terminology, the " Active " state specifically indicates that the router is attempting to initiate a TCP connection with its peer but has not yet received a response. A fully functional and successful BGP connection must reach the Established state.

Root Cause Determination: Since the tunnel is up (eliminating Gateway or Authentication Method issues as the primary suspects) but the BGP state remains stuck in " Active, " the most likely cause is a mismatch or misconfiguration in the BGP Peer IP or BGP neighbor settings. This prevents the exchange of routing information necessary for users to access private applications.

To resolve the connectivity problem, the administrator must ensure that the BGP neighbor IPs configured on the FortiGate hub match those assigned by the FortiSASE orchestration and that firewall policies on the hub allow BGP traffic (TCP port 179) across the tunnel.

When remote users connected to FortiSASE require access to internal resources on Branch-2, the following process occurs:

SD-WAN Capability:

FortiSASE leverages SD-WAN to optimize traffic routing based on performance metrics and priorities.

In the priority settings, HUB-1 is configured with the highest priority (P1), whereas HUB-2 has a lower priority (P2).

Traffic Routing Decision:

FortiSASE evaluates the available hubs (HUB-1 and HUB-2) and selects HUB-1 due to its highest priority setting.

Once the traffic reaches HUB-1, it is then routed to the appropriate branch based on internal routing policies.

Branch-2 Access:

Since HUB-1 has the highest priority, FortiSASE directs the traffic to HUB-1.

HUB-1 then routes the traffic to Branch-2, providing the remote users access to the internal resources.