Cisco Asr 9000 Series Aggregation Services Router Broadband Network Gateway Configuration Guide - Cisco ASR 9000 Series Configuration Manual

Creating Attributes of Specific Format
An example of constructing the NAS-Port-ID from just the Circuit-ID is:
aaa attribute format NAS-PORT-ID-FORMAT3 format-string "%s" circuit-id-tag
The NAS-Port-ID formats configured in the above examples, can be specified in the nas-port-ID command,
thus:
For IPoEoQINQ interface:-
aaa radius attribute
For Virtual IPoEoQINQ interface:-
aaa radius attribute
For IPOEoE interface:-
aaa radius attribute
NAS-Port-Type on Interface or VLAN Sub-interface
In order to have different production models for subscribers on the same BNG router, but different physical
interfaces of same type, the NAS-Port-Type is made configurable for each physical interface, or VLAN
sub-interface. With a different NAS-Port-Type value configured on the interface, the NAS-Port and
NAS-Port-ID gets formatted according to the formats defined globally for the new NAS-Port-Type configured
on the interface, instead of the actual value of NAS-Port-Type that the interface has. This in turn sends different
formats of NAS-Port, NAS-Port-ID and NAS-Port-Type to the RADIUS server for the subscribers under
different production models.
Use this command to configure NAS-Port-Type per interface or VLAN sub-interface:
aaa radius attribute nas-port-type <nas-port-type>
where:
<nas-port-type> is either a number ranging from 0 to 44, or a string specifying the nas-port-type.
Calling-Station-ID and Called-Station-ID
BNG supports the use of configurable calling-station-ID and called-station-ID. The calling-station-ID is a
RADIUS attribute that uses Automatic Number Identification (ANI), or similar technology. It allows the
network access server (NAS) to send to the Access-Request packet, the phone number from which the call
came from. The called-station-ID is a RADIUS attribute that uses Dialed Number Identification (DNIS), or
similar technology. It allows the NAS to send to the Access-Request packet, the phone number that the user
called from.
The command used to configure the calling-station-ID and called-station-ID attributes is:
aaa radius attribute calling-station-id format <FORMAT_NAME>
aaa radius attribute called-station-id format <FORMAT_NAME>
Examples of constructing calling-station-ID from mac-address, remote-ID, and circuit-ID are:
aaa radius attribute calling-station-id format CLID-FORMAT
aaa attribute format CLID-FORMAT format-string "%s:%s:%s" client-mac-address-ietf remote-id-tag
circuit-id-tag
Examples of constructing called-station-ID from mac-address, remote-ID, and circuit-ID are:
aaa radius attribute called-station-id format CLDID-FORMAT
aaa attribute format CLDID-FORMAT format-string "%s:%s" client-mac-address-raw circuit-id-tag

Cisco ASR 9000 Series Aggregation Services Router Broadband Network Gateway Configuration Guide,

Release 4.2.x
18
Configuring Authentication, Authorization, and Accounting Functions
nas-port-id format NAS-PORT-ID-FORMAT1
nas-port-id format NAS-PORT-ID-FORMAT2 type 44
nas-port-id format NAS-PORT-ID-FORMAT3 type 39
type 41
OL-26148-02