Default Network Setup

When you create a virtual data center instance in a Dedicated Cloud with at least one public IP address, vCloud Air automatically creates a default network. The default network includes settings for the gateway, networks, and various services. To see the default network settings, you can use the vCloud Air and vCloud Director user interfaces.

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1. Overview: Gateway and Networks


By default, whenever you create a new virtual data center with at least one public IP address, an internal network and a routed gateway network are created. As seen in the image below.


  1. Go to https://vchs.vmware.com/login and log in to vCloud Air.
  2. On the Dashboard tab, click the virtual data center where you want to see the default networking (in this example, we use the SHAREPOINT virtual data center).


  3. Click the Gateways tab, and note the following:
  • One gateway has been created, and it is in high availability mode by default.
  • Two IP addresses were specified when this virtual data center was created. One has been used, and the other has not.




4. Click the Networks tab, and note the following:

  • Two networks have been created by default.
  • One network is isolated. It sits on the internal side and has an internal IP range.
  • The other network is routed and uses one of the public IP addresses noted in Step 3. On the gateway, this network takes a public IP address and connects to a private network on the inside, where virtual machines can be connected.




5. Click Manage in vCloud Director to access the vCloud Director user interface.

2. vCloud Director: Services


In the vCloud Director user interface, you can examine the default networking at a more granular level.

  1. On the Org VDC Networks tab, note the following:
  • There are two default networks-one isolated and one routed.
  • One network is connected to the edge gateway, and the other is not.




2. To review the services for the isolated network, click the network name, and then click Configure Services.



3. In the Configure Services windows, review the DHCP tab:

  • By default, DHCP is the only service that can be enabled in the isolated network.
  • In this example, DHCP has already been enabled, and an IP range, default lease, and max lease have been assigned.




4. Click Cancel to return to the vCloud Director Administration UI.

5. To review the services for the default routed network, click the network name, and then click Configure Services.



6. In the Configure Services window, review the DHCP tab:

  • DHCP is not enabled by default for the routed network.




7. Click through the remaining tabs in the Configure Services window, and note the following default settings:

Tab Settings
NAT NAT is not enabled
Firewall The Firewall is enabled and set to Deny for all rules.This means that if you connect to virtual machines to the default routed network, you must configure the firewall to allow traffic to get them to.
Status Routing Static routing is not enabled.
VPN VPN is not enabled.
Load Balancer Load balancing is not enabled.

8. Click Cancel to return to the vCloud Director Administration UI.

3. vCloud Director: Edge Gateway


The vCloud Director user interface also shows you the gateway's default settings in more detail.

  1. In the vCloud Director Administration UI, click the Edge Gateways tab, and note the following:
  • The gateway automatically adopts the name of the virtual data center.
  • The gateway is in Multi-Interface Mode.
  • The gateway has used two NICs-one on the External Networks side and one on the Organization VDC Networks side.
  • The gateway is in high availability mode by default.




2. To review the properties for the gateway, click the gateway name, and then click Properties.



3. In the Edge Gateway Properties window, review the General tab, and note that high availability is enabled by default.



4. Click the Configure IP Settings tab, and note the following:

  • The external network has been configured automatically by VMware.
  • A public IP address has been given under the assigned pool.