This image shows four common use cases for site-to-site virtual private networks:
- Connecting on-premises to OCI
- Providing backup for a FastConnect connection
- Connecting OCI to other cloud providers
- Creating temporary connections to OCI
Connecting on-premises to OCI
In the first use case, a site-to-site virtual private network connects an OCI region with an on-premises location. The site-to-site virtual private network connects to a dynamic routing gateway in the OCI region. The dynamic routing gateway is attached to a single virtual cloud network. The site-to-site virtual private network enables a private connection between OCI and an on-premises location over the internet.
Providing backup for a FastConnect connection
In the second use case, a site-to-site virtual private network connects an OCI region with an on-premises location. The site-to-site virtual private network connects to a dynamic routing gateway in the OCI region. The dynamic routing gateway is attached to a single virtual cloud network.
A FastConnect connection also connects to the same OCI region and on-premises location. The FastConnect connection also connects to the dynamic routing gateway in the on-premises location.
Because the FastConnect connection will have better performance, it is the preferred connection between OCI and the on-premises location. The site-to-site virtual private network is active but unused. In the event that the FastConnect connection fails, network traffic will seamlessly be switched to the site-to-site virtual private network.
The site-to-site virtual private network enables a private connection between OCI and an on-premises location over the internet.
Connecting OCI to other cloud providers
In the third use case, a site-to-site virtual private network connects an OCI region with another cloud provider. The site-to-site virtual private network connects to a dynamic routing gateway in the OCI region. The dynamic routing gateway is attached to a single virtual cloud network. The site-to-site virtual private network enables a private connection between OCI and another cloud provider over the internet.
Creating temporary connections to OCI
In the fourth use case, a site-to-site virtual private network connects an OCI region with an on-premises location. The site-to-site virtual private network connects to a dynamic routing gateway in the OCI region. The dynamic routing gateway is attached to a single virtual cloud network.
A second site-to-site virtual private network also connects the same OCI region to another cloud provider.
Site-to-site virtual private networks can be created within minutes, making them useful, effective, and private solutions for temporary and short-term needs.