Which type of attachment should you use to advertise routes through BGP from the spoke VPC to the security VPC?

You have created a TGW route table to route traffic from your spoke VPC to the security VPC where two FortiGate devices are inspecting traffic. Your spoke VPC CIDR block is already propagated to the Transit Gateway (TGW) route table.

Which type of attachment should you use to advertise routes through BGP from the spoke VPC to the security VPC?
A . Connect attachment
B . VPC attachment
C . Route attachment
D . GRE attachment

View Answer

Answer: B

Explanation:

A VPC attachment is the type of attachment that allows you to connect a VPC to a TGW and advertise routes through BGP. A VPC attachment creates a VPN connection between the VPC and the TGW, and enables dynamic routing with BGP. A connect attachment is used to connect a VPN or Direct Connect gateway to a TGW. A route attachment is not a valid type of attachment for TGW. A GRE attachment is used to connect a FortiGate device to a TGW using GRE tunnels.

Reference: Creating the TGW and related resources

Configuring TGW route tables

FortiGate Public Cloud 7.2.0 – Fortinet Documentation

Updating the route table and adding an IAM policy