Networking Guide
Table Of Contents
- VMware vCloud Air Networking Guide
- Contents
- About this Networking Guide
- Overview of Gateways and Networks
- About Managing Gateways and Networks
- Network Security and Secure Access
- Network Connectivity for Virtual Machines
- Direct Connect for vCloud Air
- Features of Direct Connect
- Reasons to Order Direct Connect
- Direct Connect Service Overview
- Direct Connect with Cross Connect
- Direct Connect for Network Exchange
- Direct Connect Use Cases
- About the Ordering and Provisioning Workflow
- Work with Your Provider to Set up Connection
- Order Direct Connect to vCloud Air
- Work with VMware to Complete Order
- View Direct Connect in vCloud Air
- Route Traffic Through Direct Connect
- Index
Allocation of Public IP Addresses
When you subscribe to vCloud Air, you are given public IP addresses as part of the subscription service
with both offerings. You can purchase additional public IP addresses at any time through your Subscription
Services in My VMware.
n
Dedicated Cloud service—3 public IP addresses
n
Virtual Private Cloud service—2 public IP addresses
Allocate public IP addresses to a virtual data center only when you want to create virtual machines that
need access to the Internet. When you allocate public IP addresses, they are reserved for the virtual data
center.
In vCloud Air, you have three ways to assign an IP address to a virtual machine:
n
IP Pool: whenever you attach a virtual machine to a network, the virtual machine gets an IP address
from the IP Pool created for that network.
n
vCloud Air creates pools of IP addresses by default on the auto-generated internal and gateway
networks.
n
Virtual machines attached to those networks get an IP address from the default pool.
n
To change the IP pool for a default network, you must use vCloud Director.
NOTE Gateways in vCloud Air allow for suballocation of IP addresses from multiple subnets that are
configured for a gateway's external interface. Therefore, when you assign IP addresses to a virtual data
center or a virtual machine, the IP addresses can belong to difference subnets. For example, if you have
assigned all the IP addresses from one subnet, while a second subnet is only 50% allocated, you can use
IP addresses from the second subnet.
n
Static IP Address: configure a static IP address for a virtual machine when you create it or change its
network settings.
n
Provides a fixed IP address for a virtual machine.
n
Set a static IP address for a virtual machine in vCloud Director.
n
DHCP: provides basic DHCP service for a gateway.
n
Part of the networking services for a gateway.
n
Change the configuration in vCloud Director.
You can view the public IP addresses you have allocated to a gateway by clicking the Gateways tab from
the vCloud Air Dashboard, clicking the gateway for which you want to view public IP addresses, and then
clicking the Public IPs tab. The list of Public IP addresses allocated to that gateway appears.
You can view the IP Pool configured for a network by clicking the virtual data center in the Dashboard >
Networks tab, as shown in the following screenshot:
Chapter 1 Overview of Gateways and Networks
VMware, Inc. 11