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Gateway apparatus with LAC function

  • US 6,816,890 B2
  • Filed: 01/24/2002
  • Issued: 11/09/2004
  • Est. Priority Date: 05/28/2001
  • Status: Expired due to Fees
First Claim
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1. A gateway apparatus connected to an access network accommodating at least one ISP (Internet Service Provider) network connected to the Internet, and having an LAC (L2TP Access Concentrator) function of transferring a PPP (Point to Point Protocol) frame received from a user terminal to said ISP network via an L2TP (Layer 2 Tunneling Protocol) connection established on said access network, comprising:

  • a cache server interface for communicating a packet with a cache server for storing, as cache data, a part of contents data provided by a Web server connected to said Internet; and

    packet transfer controller for selecting a PPP frame in which a Web contents request message is included in a payload field from a stream of PPP frames received from a user terminal, transferring the request message indicated in the PPP frame to said cache server via said cache server interface, and transferring a response message in a PPP frame format, received from said cache server via said cache server interface to the user terminal requesting the Web contents.

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