METHODS AND ARRANGEMENTS IN AN ACCESS SYSTEM

摘要

An access system ACC1 for relating service providers SP1-SPn to users U11-Um1 includes an edge access server EAS connecting the service providers and penults P1-Pk connecting the users. User devices UD11-UD14 are connected via VLAN:s to a user port UP11 on the penult. The edge access server has service agents SA1-SAn, an administrator AD1 and a broadcast handler BH1, which forms a handling system together with handlers H1-Hk in the penults. A user U11 decision including VLAN, service SP1 and user port UP11 is sent to the administrator AD1, which dynamically allocates to the relevant service agent SA1 a MAC address, defining a relation R11. A user device UD11 broadcasts a DHCP request unicasted together with user port UP11 to the broadcast handler BH1. The user device UD11 gets its IP address and IP address to the service agent SA1. The device UD11 broadcasts an ARP request which is unicasted by the penult P1, to get the MAC address to the service agent SA1. The MAC address has an internal structure, describing the switching route from source to destination.