Broadcast between subnetworks connected via router

Details Broadcast between subnetworks connected via router Broadcast between subnetworks connected via router

2004-03-08

2008-08-05

Ngo, Ricky (Department: 2616)

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

C370S390000

Reexamination Certificate

active

07408934

ABSTRACT:
The present invention allows the contents of network-wide broadcast in a first subnetwork to be passed to a second subnetwork even if a router is set to prevent the network-wide broadcast in the first subnetwork from going out of the first subnetwork. In response to the network-wide broadcast in the first subnetwork, a first broadcast relay generates a packet in which a destination address of the network-wide broadcast packet is changed to an address of a second broadcast relay belonging to a second subnetwork, and outputs the address changed packet to the first subnetwork. The second broadcast relay generates, in response to the packet addressed thereto, a second subnetwork-only broadcast as a local broadcast, and outputs it to the second subnetwork. A server of the second subnetwork performs a predetermined process on the broadcast outputted by the second broadcast relay.

REFERENCES:
patent: 5740375 (1998-04-01), Dunne et al.
patent: 6473413 (2002-10-01), Chiou et al.
patent: 6483832 (2002-11-01), Civanlar et al.
patent: 6880089 (2005-04-01), Bommareddy et al.
patent: 2002/0042706 (2002-04-01), Rodriguez
patent: 2002/0052972 (2002-05-01), Yim
patent: 2003/0126252 (2003-07-01), Abir

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