FCSS_SASE_AD-23 Questions and Answers

When configuring FortiSASE Secure Private Access (SPA) with SD-WAN integration, establishing a routing adjacency between FortiSASE and the FortiGate SD-WAN hub requires the use of the Border Gateway Protocol (BGP).

BGP (Border Gateway Protocol):

BGP is widely used for establishing routing adjacencies between different networks, particularly in SD-WAN environments.

It provides scalability and flexibility in managing dynamic routing between FortiSASE and the FortiGate SD-WAN hub.

Routing Adjacency:

BGP enables the exchange of routing information between FortiSASE and the FortiGate SD-WAN hub.

This ensures optimal routing paths and efficient traffic management across the hybrid network.

References:

FortiOS 7.2 Administration Guide: Provides information on configuring BGP for SD-WAN integration.

FortiSASE 23.2 Documentation: Details on setting up routing adjacencies using BGP for Secure Private Access with SD-WAN.

To configure a Secure Private Access (SPA) solution to share endpoint information between FortiSASE and a corporate FortiGate, you need to take the following steps:

Add the FortiGate IP address in the secure private access configuration on FortiSASE:

This step allows FortiSASE to recognize and establish a connection with the corporate FortiGate.

Use the FortiClient EMS cloud connector on the corporate FortiGate to connect to FortiSASE:

The EMS (Endpoint Management Server) cloud connector facilitates the integration between FortiClient endpoints and FortiSASE, enabling seamless sharing of endpoint information.

Register FortiGate and FortiSASE under the same FortiCloud account:

By registering both FortiGate and FortiSASE under the same FortiCloud account, you ensure centralized management and synchronization of configurations and policies.

References:

FortiOS 7.2 Administration Guide: Provides details on configuring Secure Private Access and integrating with FortiGate.

FortiSASE 23.2 Documentation: Explains how to set up and manage connections between FortiSASE and corporate FortiGate.

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.

References:

FortiOS 7.2 Administration Guide: Details on SD-WAN configurations and priority settings.

FortiSASE 23.2 Documentation: Explains how FortiSASE integrates with SD-WAN to route traffic based on defined priorities and performance metrics.

The reason for the ping failures is due to the quick mode selectors restricting the subnet. Quick mode selectors define the IP ranges and protocols that are allowed through the VPN tunnel, and if they are not configured correctly, traffic to certain subnets can be blocked.

Quick Mode Selectors:

Quick mode selectors specify the source and destination subnets that are allowed to communicate through the VPN tunnel.

If the selectors do not include the subnet of the webserver (192.168.10.0/24), then the traffic will be restricted, and the ping will fail.

Diagnostic Output:

The diagnostic output shows the VPN configuration details, but it is important to check the quick mode selectors to ensure that the necessary subnets are included.

If the quick mode selectors are too restrictive, they will prevent traffic to and from the specified subnets.

Configuration Check:

Verify the quick mode selectors on both the FortiSASE and FortiGate hub to ensure they match and include the subnet of the webserver.

Adjust the selectors to allow the necessary subnets for successful communication.

References:

FortiOS 7.2 Administration Guide: Provides detailed information on configuring VPN tunnels and quick mode selectors.

FortiSASE 23.2 Documentation: Explains how to set up and manage VPN tunnels, including the configuration of quick mode selectors.