OCI FastConnect vs IPSec VPN

Both connect an on-premises network to OCI, but they use different paths.

Simple definition

FastConnect: A dedicated, private connection between your data centre and OCI.

IPSec VPN: An encrypted connection to OCI through the public Internet.

FastConnect does not use the public Internet.

It supports:

Private peering: Access VCN resources using private IP addresses. Public peering: Access OCI public services without sending traffic over the Internet.

Which one should you choose?

Choose FastConnect when:

• Applications require stable latency.
• Large amounts of data are transferred.
• Workloads are business-critical.
• Predictable bandwidth is required.
• Internet-based connectivity is unacceptable.

Choose IPSec VPN when:

• You need quick connectivity.
• Traffic volume is moderate.
• Budget is limited.
• The environment is temporary or used for testing.
• You need backup connectivity for FastConnect.

Use both connections

FastConnect normally carries the traffic. If it fails, routing can move traffic to the IPSec VPN. Oracle recommends a route-based VPN with BGP when it is used as FastConnect backup