Prefix List Profile

Use prefix lists to permit or deny an address or range of addresses. Filtering with a prefix list involves matching the prefixes of routes against the entries in the list. If a prefix does not match any entry, an implicit deny is assumed. Prefix lists can be configured for both IPv4 and IPv6 address families.

Users can configure multiple entries in a prefix list to permit or deny matching prefixes. Each entry has an associated sequence number.

Creating a Prefix List Profile

To create a Prefix List profile, complete the following steps:

In the HPE Aruba Networking Central landing page, click the configurationicon.
The Profiles tab is displayed.
In the left navigation menu, select one of the following options:
- Library—This is the default selection. If you create profiles in the Library, then you must assign scope and device functions to the profiles. For more information, see Assigning Scope to a Prefix List Profile.
- Global—If you create profiles at the Global level, then the profiles have Global scope assigned by default.
- Site Collections—If you create profiles at the Site Collections level, then the profiles have site collection scope assigned by default.
- Sites—If you create profiles at the Site level, then the profiles have site scope assigned by default.
- Devices—If you create profiles at the Device level, then the profiles have device scope assigned by default.
- Device Groups—If you create profiles at the Device Group level, then the profiles have device group scope assigned by default.
Note:
- To create profiles at the Global level, select the device type from the Device Function drop-down list before step 4.
- To create profiles at the Site Collections, Sites, Devices, and Device Group level, complete the following steps before step 4:
  1. Select Site Collection, Site, Device, or Device Group in the left navigation menu.
  2. Select a Site Collection, Site, Device, or Device Group from the list view depending on the level where you are creating the profile.
  3. Select the device type from the Device Function drop-down list.
On the Routing & Overlays card, click Prefix List.
Alternatively, you can complete the following steps:
1. On the Routing & Overlays card, click Manage.
2. On the Prefix List card, click Manage.
The Prefix List profile list view is displayed.
Click Create Profile.
The Create Profile side panel is displayed.
Configure the following parameters:
- Create as a local profile—Select this checkbox if you want to configure this profile as local.
  
  Note:
  The Create as a local profile checkbox is available at the Global, Site Collections, Sites, Devices, and Device Groups levels. It is not available at the Library level.
- Name—Enter the name of the profile.
- Description—Enter the description for the profile.
- Address Family—Specify the address family. The available options are IPv4 and IPv6.
  
  Note:
  A prefix value of 0.0.0.0/0 with a Less Than Or Equal To value of 32 can be configured under the IPv4 prefix list, and ::/0 with a Less Than Or Equal To value of 128 can be configured under the IPv6 prefix list to match any prefix within the respective address family.
To add Prefix List rules, click + in the Prefix List Rules table and configure the following parameters:
- Sequence No—Specify the sequence number to determine rule order. By default, the sequence number is auto-generated. You can modify the sequence number.
- Action—Select PERMIT or DENY to determine whether the route should be considered for further processing when there is a match.
- IP Prefix/Mask— Specify the IP prefix and mask.
- Greater Than Or Equal To—Specify the minimum prefix length to be matched.
- Less Than Or Equal To—Specify the maximum prefix length to be matched.
Click Create.

The newly created profile is displayed in the Prefix List Profile list.
To edit a profile, complete the following steps:
1. Click anywhere on the row of the profile in the list view.
  
  The Edit Profile view is displayed in the side panel.
2. Edit the required parameters.
3. Click Update.
To delete a profile, hover on the profile name, and click the delete icon.
To search for a profile, type the profile name in the search bar. The search bar displays dynamic results as soon as you start typing.

Assigning Scope to a Prefix List Profile

You must assign a scope and device function to a Prefix List profile created in the Library.

To assign scope to a profile, complete the following steps:

In the HPE Aruba Networking Central landing page, click the configurationicon.
The Profiles tab is displayed.
Ensure that the default option Library is selected in the left navigation menu.
On the Routing & Overlays card, click Prefix List.
Alternatively, you can complete the following steps:
1. On the Routing & Overlays card, click Manage.
2. On the Prefix List card, click Manage.
The Prefix List list view is displayed.
Hover on the profile to which you want to assign a scope and click the ellipsis icon.
Select Assign.

The Assign Profile side panel is displayed.
Select the device types from Device Function list.
To add a scope, click the Add icon on the Scopes table.
Select a scope from the following Scope Level options in the drop-down list:
- Global—Selecting this option assigns the scope at the Global level.
- Site Collections—Select the site collections from the Assign to Scope drop-down list.
- Sites—Select the sites from the Assign to Scope drop-down list.
- Devices—Select the devices from the Assign to Scope drop-down list.
- Device Groups—Select the device groups from the Assign to Scope drop-down list.
Click Add.

The Scopes table displays the newly added scopes.
Click Assign.

The Prefix List list displays the device functions and number of scopes assigned to the profile.
To unassign a scope from a profile, complete the following steps:
1. Hover on the profile name and click the Ellipsis icon.
2. Select Unassign.
3. Select the required scope and click Unassign.
To customize the Prefix List profile list, click the Customize Columns icon .