Virtual Private Cloud OnDemand Networking Guide

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 more information about
configuring DNS for Virtual Private Cloud OnDemand networks.
Static Routing
In Virtual Private Cloud OnDemand, the gateway supports configuring static routing between the interfaces
in the gateway. By default, static routing is disabled for a gateway. (On an isolated network, which does not
connect to a gateway, static routing is not applicable).
On a routed 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 1‑5. Example of Static Routing in Virtual Private Cloud OnDemand
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 routed network to connect to an application server on another
routed network without having the traffic traverse the Internet
Configure static routing for a routed network by navigating from Virtual Private Cloud OnDemand to the
networking services for the gateway in vCloud Director:
Virtual Private Cloud OnDemand Web UI > Gateway tab > Manage in vCloud Director > 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
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