You configure default and any IP prefixes on the tier-0 gateway to permit access to route advertisement by any network and by the 0.0.0.0/0 network. These IP prefixes are used in route maps to prepend a path to one or more autonomous systems (AS-path prepend) for BGP neighbors and to configure local-reference on the learned default-route for BGP neighbors in availability zone 2.

Procedure

  1. In a web browser, log in to NSX Manager for the management or workload domain to be stretched at https://nsx_manager_fqdn/login.jsp?local=true.
  2. On the main navigation bar, click Networking.
  3. In the navigation pane, click Tier-0 gateways.
  4. Select the gateway and from the ellipsis menu, click Edit.
  5. Create the Any IP prefix list.
    1. Expand the Routing section and in the IP prefix list section, click Set.
    2. In the Set IP prefix list dialog box, click Add IP prefix list.
    3. Enter Any as the prefix name and under Prefixes, click Set.
    4. In the Set prefixes dialog box, click Add Prefix and configure the following settings.

      Setting

      Value

      Network

      any

      Action

      Permit
    5. Click Add and then click Apply.
  6. Repeat step 5 to create the default route IP prefix set with the following configuration.

    Setting

    Value

    Name

    Default Route

    Network

    0.0.0.0/0

    Action

    Permit
  7. On the Set IP prefix list dialog box, click Close.