Configure the DNS, IP Address, and Proxy Settings

You can assign static IPv4 and IPv6 addresses, edit the DNS settings, and define the proxy settings for the vCenter Server Appliance.

Prerequisites

• To change the IP address of the appliance, verify that the system name of the appliance is an FQDN. If, during the deployment of the appliance, you set an IP address as a system name, you cannot change the IP address after the deployment, because the system name is used as a primary network identifier.
  Note: You cannot change the primary network identifier after you deploy the vCenter Server Appliance.

• Log in to the vCenter Server Appliance Management Interface as root.

Procedure

1. In the vCenter Server Appliance Management Interface, click Networking and click Manage.
2. In the Hostname, Name Servers, and Gateways pane, click Edit.
3. In the Name Servers section, configure the DNS settings.

   Option	Description
   Obtain DNS settings automatically	Obtains the DNS settings automatically from the network.
   Enter settings manually	Lets you set the DNS address settings manually. If you select this option, you must provide the following information: The IP address of the preferred DNS server. (Optional) The IP address of the alternative DNS server.

4. In the Default Gateways section, enter an IPv4 or IPv6 gateway address.
5. In the Networking Interfaces pane, click Edit.
6. Expand the network interface name to edit the IP address settings.
7. Edit the IPv4 address settings.

   Option	Description
   Disable IPv4 settings	Disables the IPv4 address. The appliance uses only an IPv6 address.
   Obtain IPv4 settings automatically	Obtains the IPv4 address for the appliance automatically from the network .
   Use the following IPv4 settings	Uses an IPv4 address that you set manually. You must enter the IP address, subnet prefix length, and the default gateway.

8. Edit the IPv6 settings.

   Option	Description
   Obtain IPv6 settings automatically through DHCP	Assigns IPv6 addresses to the appliance automatically from the network by using DHCP.
   Obtain IPv6 settings automatically through Router Advertisement	Assigns IPv6 addresses to the appliance automatically from the network by using router advertisement.
   Static IPv6 addresses	Uses static IPv6 addresses that you set up manually. Click the Add icon. Enter the IPv6 address and the subnet prefix length. Click OK. (Optional) Edit the default gateway.

   You can configure the appliance to obtain the IPv6 settings automatically through both DHCP and router advertisement. You can assign static a IPv6 address at the same time.

9. To configure a proxy server, in the Proxy Settings pane, click Edit.
10. Select Use a Proxy Server, enter the proxy server settings, and click OK.