4. Networking Examples : 4.4 Public vCloud External Network : 4.4.3 Management
   
4.4.3 Management
As the vCloud Director environment grows, the service provider can modify the external network settings.
To modify external network settings
1. Add a new network specification (subnet) to an existing external network.
2. Modify an existing network specification (DNS servers or suffix) for the external network. You cannot modify the network subnet mask or default gateway.
3. Add or remove IP addresses in the static IP pool for an external network.
Note: After you have created a network specification (subnet) for an external network, you cannot delete it.