Dynamic DNS Profile

Dynamic DNS (DDNS) is a feature of APs that allows you to update the hostname and the names of DL3 clients connected to them. DDNS provides a consistent approach to access the AP and DL3 clients by updating the DNS records automatically when an IP address changes.

If the ISP assigns a dynamic IP address to the AP, the AP loses connectivity due to a change in its public IP address. Similarly, if the dynamically assigned IP address changes for DL3 clients with an AP, which acts as a DHCP server, the host is no longer accessible. DDNS eliminates these issues by assigning a custom domain name to the IP address that updates automatically when the IP address changes. Thus, even if the IP address is changed by the ISP, you can still connect to your device to the network using the same hostname.

Creating a Dynamic DNS Profile

To create a Dynamic DNS Profile profile, complete the following steps:

  1. In the HPE Aruba Networking Central landing page, click the configurationicon.
    The Profiles tab is displayed.

  2. 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 Dynamic DNS 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.

  3. On the System card, click Dynamic DNS.

    Alternatively, you can complete the following steps:

    1. On the System card, click Manage.

    2. On the Dynamic DNS card, click Manage.
      The Dynamic DNS list view is displayed.

  4. Click Create Profile.
    The Create Profile side panel is displayed.

  5. Configure the Dynamic DNS profile parameters as described in the following table.

    6. Table 1: Dynamic DNS Profile Parameters

    Parameter

    Description

    Create as a local profile

    Select this option if you want to configure this profile as local.

    The Create as a local profile option 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 dynamic DNS profile.

    Description

    Enter a brief description for the dynamic DNS profile.

    Type

    Select the mode in which the device sends DNS updates to the dynamic DNS from the following options:

    • Dynamic DNS

    • Dynamic DNS over HTTPS (This option is not supported by gateways).

    Server Interval

    Enter the interval at which the device sends update to the dynamic DNS.

    DNS Server

    Select the DNS server from the table.

  6. To create a new DNS server for Dynamic DNS type, click the Add icon on the DNS Server table.

    The Add DNS Server pane is displayed.

    Configure the following parameters:

    • IP Address—Enter the IP address of the DNS server to which the client updates are sent.

    • Authentication Type—Select one of the following authentication types from the drop-down list:

      • hmac-sha1

      • hmac-sha256

      • hmac-md5

    • Authentication Name—Enter a name for the authentication.

    • Authentication Key—Enter the transaction signature shared secret key to secure the dynamic updates.

  7. To create a new DNS Server for Dynamic DNS over HTTPS type, click the Addicon on the DNS Server table.

    The Add DNS Server pane is displayed.

    Configure the following parameters:

    • Provider Name—Select the provider name from the drop-down list. The supported providers include the following options:

      • ChangeIP

      • DynDNS

      • NoIP

    • Username—Enter the username to log in to the dynamic DNS service provider.

    • Password—Enter the password to log in to the dynamic DNS service provider.

    • Retype Password—Retype the password to log in to the dynamic DNS service provider.

  8. Click Add to add the Dynamic DNS server.

  9. Click Create to create the Dynamic DNS profile.

The following image displays the Create Profile side panel of a Dynamic DNS profile.

Figure 1: Create Dynamic DNS Profile

Assigning Scope to a Dynamic DNS Profile

For profiles created under Library, you must assign a scope and device function to be able to use its features and functionality.

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

  1. In the HPE Aruba Networking Central landing page, click the configurationicon.
    The Profiles tab is displayed.

  2. Ensure that the default option Library is selected in the left navigation menu.

  3. On the System card, click Dynamic DNS.

    Alternatively, you can complete the following steps:

    1. On the System card, click Manage.

    2. On the Dynamic DNS card, click Manage.
      The Dynamic DNS page is displayed.

  4. Hover on the profile to which you want to assign a scope and click the Ellipsis icon.

  5. Select Assign.

    The Assign Profile side panel is displayed.

  6. Select the device types from Device Function list.

  7. To add a scope, click the Add icon on the Scopes table.

  8. 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.

  9. Click Add.

    The Scopes table displays the newly added scopes.

  10. Click Assign.

    The Dynamic DNS list displays the device functions and number of scopes assigned to the profile.

  11. 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. The Unassign pop-up window is displayed.

    3. Select the required scope and click Unassign.

  12. To customize the Dynamic DNS profile list, click the Customize Columns icon . For more information, see Customizing List.