Security for mobile devices in a wireless network

  • US 8,255,681 B2
  • Filed: 03/10/2005
  • Issued: 08/28/2012
  • Est. Priority Date: 03/10/2005
  • Status: Active Grant
First Claim
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1. A network, comprising:

  • a wireless access node configured to receive first packets from a plurality of wireless computing devices attempting to access the network, each of the first packets corresponding to one of a plurality of traffic types, at least one of the traffic types corresponding to an encrypted wireless protocol, the wireless access node being configured to associate one of a plurality of identifiers with each of the first packets, each of the plurality of identifiers corresponding to one of the plurality of traffic types and one of a plurality of virtual local area networks (VLANs), the wireless access node further being configured to transmit all first packets received from the wireless computing devices to a gateway on the network regardless of destination addresses associated with the first packets;

    the gateway which is configured to determine that one or more of the first packets from a first one of the wireless computing devices are directed to a second one of the wireless computing devices with reference to the identifier associated with the one or more first packets and the identifier associated with the second wireless computing device, the gateway further being configured to prevent the one or more first packets from reaching the second wireless computing device in response to determining that the one or more first packets are directed to the second wireless computing device, thereby inhibiting all packet traffic between different ones of the VLANs on the network and between different devices on a same one of the VLANs on the network.

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