Importance

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Abstract

A device for coupling a first network medium to a second network medium. A first port is coupled to the first network medium and a second port coupled to the second network medium. A memory stores a first plurality of indications and a second plurality of indications. The indications in the first plurality of indications correspond to respective sets of addresses and indicate 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 correspond to respective sets of addresses and indicate whether at least one address in the respective set of addresses may accessible through the second network medium. A connecting circuit is coupled to the first port, the second port, and the memory. The connecting circuit causes the ports to pass or block a packet from the first network to the second network. The packet has a destination address. The connecting circuit causes the ports to pass or block based on a first indication from the first plurality of indications and a second indication from the second plurality of indications. The first indication corresponds to a set of addresses including the destination address of the packet. The second indication corresponds to the set of addresses including the destination address of the packet.

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First Claim