VPC-Network

A VPC-Network resides within a VPC. Each VPC-Network inter-connects two or more VPSs.

Also, each VPC-Network is isolated from other VPC-Networks within the same VPC, VPC-Networks in other VPCs in your account, as well as VPC-Networks in VPCs belonging to other accounts/tenants.

A VPC-Network could be one of two types:

• Private Network
• Public Network

Private Network

A Private VPC-Network isolates VPSs from all other VPC-Networks.

By default, a VPS in a Private VPC-Network does not have a Public IP assigned to it.

Hence, such a VPS is not reachable from any other Network, either a VPC-Network or the Internet. However, it does get assigned a Private IP.

All VPSs in a Private VPC-Network can access each other via their assigned Private IPs.

Also, a VPS in a Private VPC-Network cannot initiate communication with any other VPS in other VPC-Networks, through Private IPs, by default. In order to achieve such communication, Network ACL (NWACL) Rules need to be added to the source and destination VPC-Networks.

However, Private VPC-Networks allow outgoing traffic to Internet. Hence, a VPS in a Private VPC-Network can:

• access any Public IP on the internet, while still not being reachable from anywhere on the internet.
• access VPSs in any other Public VPC-Network, provided the target VPS has a Public IP.

Public Network

A VPS in a Public VPC-Network is assigned a Public IP, by default.

Hence, all VPSs in a Public VPC-Network are reachable, on their Public IPs, from any other Network, either a VPC-Network or the Internet.

A VPS in a Public VPC-Network is also assigned a Private IP. However, a VPS in a Public VPC-Network will be unreachable on it’s Private IP, from outside the VPC-Network. In order to make a VPS reachable on it's Private IP, from another VPC-Network in the same VPC, Network ACL (NWACL) Rules need to be added to the source and destination VPC-Networks.