Access control enhancements, network access unit and service...

Details Access control enhancements, network access unit and service... Access control enhancements, network access unit and service...

H - Electricity

04

L

H04L 9/00 (2006.01) H04L 12/18 (2006.01) H04L 12/56 (2006.01) H04L 29/06 (2006.01) H04N 7/173 (2006.01) H04N 7/16 (2006.01)

Patent

CA 2430350

Include Figure 2; a method of providing secure multicast over a local access network (20) by means of a network access unit (30) having a channel request vetting function (37) and a permitted channel list (39). Channel requests from a subscriber are vetted with respect to the permitted channel list and forwarded only if permitted. The permitted list may be dynamically updated under headend control to allow users to subscribe to, and unsubscribe from, services upon request.

L'invention concerne, illustré Figure 2, un procédé de mise en oeuvre sécurisé de diffusion sélective sur un réseau local (20) au moyen d'une unité d'accès réseau (30) possédant une fonction de filtrage de requête de canal (37) et une liste de canaux autorisés (39). Des requêtes de canal provenant d'un abonné sont filtrées par rapport à la liste de canaux autorisés et acheminées seulement si elles sont autorisées. La liste d'autorisation peut être mise à jour dynamiquement sous commande de la tête de bus permettant aux utilisateurs de s'abonner, et de se désabonner sur demande aux services.

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