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
See Modify an Organization Virtual Datacenter Network DNS Settings in vCloud Director Administrator’s
Guide for information.
NOTE If the DNS settings on a DHCP-enabled gateway are changed, the gateway no longer provides DHCP
services. To correct this issue, disable and re-enable DHCP on the gateway. For information about enabling
DHCP, see the following documentation:
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“DHCP,” on page 14 in this guide
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Configure DHCP for an Edge Gateway in vCloud Director Administrator’s Guide
Related Information
See “Deploy Directory and DNS Services” in VMware vCloud Air Solution Brief for additional information
about configuring DNS for vCloud Air networks.
Static Routing
In vCloud Air, the gateway supports configuring static routing between the interfaces in the gateway. By
default, static routing is disabled for a gateway. (On an internal network, which does not connect to a
gateway, static routing is not applicable).
On a gateway network, network traffic goes to the gateway's default interface, which connects to the
Internet. When you configure a static route between interfaces, traffic bypasses the default interface to the
Internet.
Figure 1‑2. Example of Static Routing in vCloud Air
VMVMVMVMVMVMVMVM
Gateway network 1 (DMZ) Gateway network 2 (App) Gateway network 3 (Test)
3rd party
appliance
Web servers Application servers Database servers
Static routes between zones
You might want to enable static routing on a gateway for the following use cases:
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So that all the traffic from the external network traverses the antivirus appliance first before accessing
your virtual machines
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When you want a Web server on one gateway network to connect to an application server on another
gateway network without having the traffic traverse the Internet
Configure static routing for a gateway network by navigating from vCloud Air to the networking services
for the gateway in vCloud Director:
vCloud Air Dashboard > Gateway tab > click the gateway > Manage Advanced Gateway Settings >
vCloud Director Administration page > Edge Gateways tab > select the gateway, right-click and choose
Edge Gateway Services > Static Routing tab
Chapter 1 Overview of Gateways and Networks
VMware, Inc. 17