Configure IP Prefixes in the Tier-0 Gateway for Availability Zone 2

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.
  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
    .