Networking

I/O Cloud Networking enables you to create rich network topologies to connect your instances to each other and to the internet. It is built on OpenStack Neutron, providing softare-defined networking (SDN) capabilities.

Virtual Networks

Your cloud environment is isolated within your own Virtual Private Cloud (VPC).

• Isolation: Tenant networks are fully isolated from one another using encapsulation protocols like VXLAN or Geneve. This ensures that your traffic remains private and secure, even within the shared infrastructure.
• Subnets: You can define one or more subnets within your networks to manage IP addressing (IPv4 and IPv6) for your instances.

Routing and Connectivity

Alpha / Beta Notice

During the Stud I/O Cloud private alpha / beta, a router with a default gateway is added to the project upon request. Additionally, a set of floating IPs can be allocated to your project upon request.

Therefore, the resources described below are not yet available for self-service management.

• Routers: Virtual routers connect your internal subnets to external networks. They act as gateways, allowing your instances to access the internet or other private networks.
• Floating IPs: To make an instance accessible from the public internet, you associate a "Floating IP" with it. This is a public IP address that maps to the instance's private IP, allowing inbound traffic.

Security

Security is a core component of the networking layer.

• Security Groups: These act as a virtual stateful firewall for your instances. You define rules to allow specific types of ingress (incoming) and egress (outgoing) traffic (e.g., allow SSH on port 22 or HTTP on port 80).
• Default Policy: By default, all inbound traffic is blocked, and all outbound traffic is allowed, until you explicitly add rules.