You can use IP Spaces to manage your IP address allocation needs. IP Spaces provide a structured approach to allocating public and private IP addresses by preventing the use of overlapping IP addresses across organizations and organization VDCs.

An IP space consists of a set of defined non-overlapping IP ranges and small CIDR blocks that are reserved and used during the consumption aspect of the IP space life cycle. An IP space can be either IPv4 or IPv6, but not both.

Every IP space has an internal scope and an external scope. The internal scope of an IP space is a list of CIDR notations that defines the exact span of IP addresses in which all ranges and blocks must be contained in. The external scope defines the total span of IP addresses to which the IP space has access, for example, the internet or a WAN. The internal and external scopes are used to define default NAT rules and BGP prefixes.

After creating a private IP space, you can assign to it IP prefixes for networks and floating IP addresses for network services.

As a sub-provider administrators, you can view general information about the IP spaces in your organization, and manage your proviate IP spaces.

There are three types of IP spaces.

Public IP Space
A public IP space is used by multiple organizations and is controlled by the service provider through a quota-based system.
Shared IP Space
An IP space for services and management networks that are required in the tenant space.
Private IP Space

Private IP spaces are dedicated to a single tenant - a private IP space is used by only one organization that is specified during the space creation. For this organization, IP consumption is unlimited.

Edit an IP Space in Your VMware Cloud Director

You can use your VMware Cloud Director Tenant Portal to modify the name, description, scope, IP ranges, and IP prefixes of an existing IP space.

Prerequisites

  • Verify that you are logged in to a sub-provider organization as a system administrator, sub-provider administrator, or a role with equivalent set of rights.

  • Verify that you own the private IP space that you want to edit.

Procedure

  1. From the primary left navigation panel, select Networking and from the page top navigation bar, select IP Spaces.
  2. Click the IP space that you want to edit.
  3. Under General, click Edit.
  4. Edit the IP Space name or description.
  5. Edit the service scope of the IP Space.
    1. Click the Service Scope tab.
    2. Add up to five IP addresses for the internal scope of the IP space.
    3. Add an external scope for the IP space.
  6. Edit the IP ranges of the IP space.
    1. Click the IP Ranges tab.
    2. Add up to five IP ranges that match the internal scope of the IP space.
  7. Edit the IP prefixed of the IP space.
    1. Click the IP Prefixes tab.
    2. Edit the IP prefixes for the IP space.
  8. Click Save.

Allocate Floating IPs in the VMware Cloud Director Tenant Portal

As a sub-provider administrator, you can allocate floating IP addresses that your tenant organizations can use.

Prerequisites

  • Verify that you are logged in to a sub-provider organization as a system administrator, sub-provider administrator, or a role with equivalent set of rights.

  • Verify that you own the private IP space that you want to edit.

Procedure

  1. From the primary left navigation panel, select Networking and from the page top navigation bar, select IP Spaces.
  2. Click the name of the IP space.
  3. Under Allocation, click Floating IPs.
  4. Click Allocate.
  5. Enter a number of IP addresses and click Allocate.

Allocate IP Prefixes in the VMware Cloud Director Tenant Portal

As a sub-provider administrator, you can allocate IP prefixes that your tenant organizations can use.

Prerequisites

  • Verify that you are logged in to a sub-provider organization as a system administrator, sub-provider administrator, or a role with equivalent set of rights.

  • Verify that you own the private IP space that you want to edit.

Procedure

  1. From the primary left navigation panel, select Networking and from the page top navigation bar, select IP Spaces.
  2. Click the name of the IP space.
  3. Under Allocation, click IP Prefixes.
  4. Click Allocate.
  5. Select a prefix size.
  6. Enter a number of prefixes, and click Allocate.

Configure the Network Topology For an IP Space in Your VMware Cloud Director

You can use your VMware Cloud Director Tenant Portal to help enable north-south traffic within your environment by configuring the network topology for the IP spaces in it.

Prerequisites

  • Verify that you are logged in to a sub-provider organization as a system administrator, sub-provider administrator, or a role with equivalent set of rights.

  • Verify that you own the private IP space that you want to edit.

Procedure

  1. From the primary left navigation panel, select Networking and from the page top navigation bar, select IP Spaces.
  2. Click the name of the IP space and, under Configuration, click Network Topology.
  3. Click Edit.
  4. Select the Route Advertisement Allowed check box to enable route advertisement if routed networks associated with this IP Space need to be advertised from the edge gateway to the provider gateway.
  5. Configure default autoconfiguration rules.
    To autogenerate default NAT rules, you must configure both the internal and the external scope of this IP space.
    1. Select the check box to enable the creation of a default SNAT rule.
    2. Select the check box to enable the creation of a default NO SNAT rule.
    3. Select the check box to enable the creation of a matching firewall rule for each default NAT rule.
  6. Click Save.