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Chapter 16. Managing Networks and Traffic
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To set up a multi-tier Inter-VLAN deployment, see Section 16.27, “Configuring a Virtual Private Cloud”.
16.27. Configuring a Virtual Private Cloud
16.27.1. About Virtual Private Clouds
CloudPlatform Virtual Private Cloud is a private, isolated part of CloudPlatform. A VPC can have its
own virtual network topology that resembles a traditional physical network. You can launch VMs in the
virtual network that can have private addresses in the range of your choice, for example: 10.0.0.0/16.
You can define network tiers within your VPC network range, which in turn enables you to group
similar kinds of instances based on IP address range.
For example, if a VPC has the private range 10.0.0.0/16, its guest networks can have the network
ranges 10.0.1.0/24, 10.0.2.0/24, 10.0.3.0/24, and so on.
Major Components of a VPC:
A VPC is comprised of the following network components:
• VPC: A VPC acts as a container for multiple isolated networks that can communicate with each
other via its virtual router.
• Network Tiers: Each tier acts as an isolated network with its own VLANs and CIDR list, where you
can place groups of resources, such as VMs. The tiers are segmented by means of VLANs. The
NIC of each tier acts as its gateway.
• Virtual Router: A virtual router is automatically created and started when you create a VPC. The
virtual router connect the tiers and direct traffic among the public gateway, the VPN gateways, and
the NAT instances. For each tier, a corresponding NIC and IP exist in the virtual router. The virtual
router provides DNS and DHCP services through its IP.
• Public Gateway: The traffic to and from the Internet routed to the VPC through the public gateway.
In a VPC, the public gateway is not exposed to the end user; therefore, static routes are not support
for the public gateway.