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Default Services for DHCP Subscribers

Default Subscriber Service Overview

Subscriber management enables you to specify a default subscriber service for DHCP subscribers. The default service (dynamic profile) is applied to subscribers when the subscriber logs in. By configuring a default service, you can apply a particular service (for example, a basic service) to subscribers who are not explicitly assigned a service.

When a subscriber logs in, the configured default service is always activated, even when remote service provisioning or RADIUS service activation is configured for the subscriber. The default service is deactivated only when the subscriber is successfully provisioned by the PCRF by means of the GX-Plus application. (Remote provisioning is configured by the provisioning-order statement at the [edit access profile] hierarchy level.)

In all other cases, the default service remains active. For example, if RADIUS authentication is configured but service activation is not, the default subscriber service remains activated. Likewise, if RADIUS authentication is not configured, the default subscriber service remains activated.

Default services can also be deactivated either with a RADIUS CoA deactivate request or with the request network-access aaa subscriber delete session-id command.

To create and assign a default subscriber service, you must complete the following operations:

  • Create the service—Ensure that the service you want to use has been configured in a dynamic service profile. The actual service is no different than any other service used for subscriber management.

  • Specify the default service—Use the Junos OS CLI to specify the service that is used as the default service.

  • Specify the interfaces on which the default service is assigned —Use the Junos OS CLI to specify that the default service is used globally, for a group of interfaces, or for a specific interface.

Configuring a Default Subscriber Service

Subscriber management enables you to specify a default subscriber service for DHCP (and DHCPv6) local server and DHCP relay agent. The default service is the service (dynamic profile) that is applied to subscribers when they log in.

Default services are subsequently deactivated in any of the following circumstances:

  • A PCRF responds to AAA for the subscriber.

  • A RADIUS CoA deactivation request is issued.

  • You deactivate the service manually through the CLI.

To configure a default subscriber service:

  1. Ensure that the service you want to use as the default has been configured in a dynamic profile.
  2. Specify the default service.

    The following example configures the default service for DHCP local server subscribers.

  3. Attach the default service—you can attach the profile globally, for a group of interfaces, or for a specific interface.

    The following example attaches the profile to a named group of interfaces for DHCP local server.

    • Specify the group to which the default service is attached.

    • Specify the dynamic profile that defines the default service.