Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Reexamination Certificate
2006-12-12
2006-12-12
To, Doris H. (Department: 2616)
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
C709S229000, C709S225000
Reexamination Certificate
active
07149219
ABSTRACT:
A packet containing a request for content is initially received at a content filtering router. The packet comprises a destination Internet Protocol (IP) address of a content server that stores the content and a bogus IP address. It is ascertained that the destination IP address is on a list of approved destination IP addresses and the packet is routed in accordance with the destination IP address. Alternatively, it is ascertained that the destination IP address is on a list of probably unapproved destination IP addresses and the packet is routed in accordance with an alternative IP address to a content filtering server. In this alternative, at the content filtering server the bogus IP address is used to determine a content filtering category and it is ascertained whether the destination IP address with the content filtering category should be filtered based upon a list of IP addresses and associated content filtering categories.
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Blount Steven A
Grunebach Georgann S.
The DirectTV Group, Inc.
To Doris H.
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