Patent ID: 6018526
Filing Date: 2000-01-25
Classification: H04L

Abstract:
A device for coupling a first network medium to a second network medium, the device comprising:a first port coupled to the first network medium;a second port coupled to the second network medium;a memory storing a first plurality of indications and a second plurality of indications, the indications in the first plurality of indications corresponding to respective sets of addresses and indicating whether at least one address in the respective set of addresses may be accessible through the first network medium, the indications in the second plurality of indications corresponding to respective sets of addresses and indicating whether at least one address in the respective set of addresses may be accessible through the second network medium; anda connecting circuit coupled to the first port, the second port, and the memory, the connecting circuit causing the ports to pass or block a packet from the first network to the second network, the packet having a destination address, the connecting circuit causing the ports to pass or block based on:a first indication from the first plurality of indications, the first indication corresponding to a set of addresses including the destination address of the packet, anda second indication from the second plurality of indications, the second indication corresponding to the set of addresses including the destination address of the packet.