Patent ID: 6205490
Filing Date: 2001-03-20
Classification: H04L,H04Q

Abstract:
A bidirectional connection apparatus for use with an ELAN and a wide-area network offering a connectionless service, comprising:an address memory for MAC addresses of the ELAN and E.164 addresses of the wide-area network that are allocated to one another;a memory for an E.164 address allocated to a transition from the wide-area network to the apparatus; anda controller fordiscarding address resolution request frames and unicast as well as multicast data frames for whose destination MAC address an allocated E.164 address is stored in the address memory,forwarding address resolution request frames and unicast as well as multicast data frames to the wide-area network for whose destination MAC address an allocated E.164 address is stored in the address memory, anddiscarding data frames and address resolution request frames whose destination MAC address is a local broadcast MAC address,whereby the E.164 address belonging to the destination MAC address is respectively handed over to an interface to the wide-area network in common with the frame,and in order to hand frames coming from the wide-area network over to an interface to the ELAN.