| 摘要 |
A method of, and apparatus for, attaching user equipment (1) to a selected interface (202) of access router equipment (2) of an Internet service provider (200), and user equipment (1) for attaching to a selected interface of access router equipment (2) of an Internet service provider by such a method. The access router equipment (2) multicasts (10) service information relating to parameters of services provided by the Internet service provider (200) together with Internet Protocol address information of an available interface (202) of the access router equipment (2) before the user equipment attaches to the interface (202) of the router equipment (2). The service information and Internet Protocol address information may be multicast periodically and on demand and/or in response to a router solicitation message emitted by the user equipment. <??>The service information multicast may include AAA parameters, in particular cost information and an indication of the identity of the Internet service provider, such as the administrative domain name of the Internet service provider. QoS parameters may be included in the service information such as information relating to the bandwidth of services available from the Internet service provider. The service information may also include information relating to the current location of the user equipment. <??>In one embodiment, the access router equipment (2) transmits user specific or more detailed service information together with the normal service information and the Internet Protocol address information of the available interface (202) in response to a router solicitation message multicast by the user equipment. <IMAGE> |
