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
Default Settings for Internal Networks
An internal network is not connected to a gateway. An internal network has an internal IP address and
subnet. Virtual machines attached to an internal network can communicate only with each other.
DHCP is the only service that can be enabled on an internal network. You use DHCP to get IP addresses for
your virtual machines. By default, internal networks are created with the following DHCP settings:
n
Enabled for the internal network
n
A private IP address range of 192.168.0.101 through 192.168.0.254
n
A default lease of 1 hour (3600 seconds)
n
A maximum lease of 2 hour (7200 seconds)
Most often, you will connect your virtual machines to a gateway network; however, you might need to
connect virtual machines to an isolated network as shown in the following examples:
n
To isolate your log servers or database server from direct Internet traffic
n
To run internal only applications or virtual machines such as applications under development
Summary of Default Settings for Gateways and Networks
The following table summarizes the default configuration for gateways and networks in vCloud Air.
Table 1‑1. Summary of Default Settings for Gateways and Networks in vCloud Air
Feature Default Settings
DEDICATED CLOUD VIRTUAL PRIVATE CLOUD
Networking Resources Logically separated Logically separated
Gateways Multiple; created by customer 1; created by VMware
Available Gateway Interfaces 9 per gateway; multiple gateways
supported
9 (only 1 gateway supported)
Bandwidth 50 Mbps allocated
1 Gbps burstable
10 Mbps allocated
50 Mbps burstable
Public IP Addresses 3 (can purchase more) 2 (can purchase more)
Available Networks on First Log in None; created by customer (creating
your first gateway adds the default
networks)
2 (created by VMware):
n
Default Isolated (type internal)
n
Default Routed (type gateway)
GATEWAY NETWORK INTERNAL NETWORK
Available Networking Services
n
Firewall: enabled; deny all traffic
n
DHCP: disabled
n
NAT: disabled
n
Static routing: disabled
n
VPN: disabled
n
Load balancing: disabled
n
DHCP: enabled
Internet Access Yes—through the connection to
gateway public IP address
No
IP Address for the Default Gateway 192.168.109.1 192.168.99.1
Subnet 192.168.109.0/24 192.168.99.0/24
VMware vCloud Air Networking Guide
10 VMware, Inc.