Specifying NAS-Port-Type for an interface

NAS-Port-Type is a standard RADIUS attribute for indicating a user access port type. With this attribute specified on an interface, when a portal user logs on from the interface, the device uses the specified NAS-Port-Type value as that in the RADIUS request to be sent to the RADIUS server. If NAS-Port-Type is not specified, the device uses the access port type obtained.

If there are multiple network devices between the Broadband Access Server (the portal authentication access device) and a portal client, the BAS may not be able to obtain a user's correct access port information. For example, for a wireless client using portal authentication, the access port type obtained by the BAS may be the type of the wired port that authenticates the user. To make sure that the BAS delivers the right access port information to the RADIUS server, specify the NAS-Port-Type according to the practical access environment.

To specify the NAS-Port-Type value for an interface: