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Redirect checking in a network device

  • US 7,082,134 B1
  • Filed: 01/18/2002
  • Issued: 07/25/2006
  • Est. Priority Date: 01/18/2002
  • Status: Active Grant
First Claim
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1. A method for redirect checking in a network device, comprising:

  • receiving a data packet on a first one of a plurality of interfaces;

    assigning an incoming interface index to the data packet;

    generating forwarding information identifying a next hop for the data packet;

    identifying an outgoing interface index based on the next hop;

    determining whether the incoming interface index is equal to the outgoing interface index;

    determining whether the data packet originated from a station that is part of a same subnet as the next hop; and

    generating a redirect message when the incoming interface index is equal to the outgoing interface index and the data packet originated from a station that is part of a same subnet as the next hop.

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