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Hybrid network

  • US 20040090972A1
  • Filed: 09/25/2003
  • Published: 05/13/2004
  • Est. Priority Date: 04/12/2001
  • Status: Abandoned Application
First Claim
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1. A communications network arranged for segregation of network traffic generated by users having different security classes but carried over the same physical infrastructure, the network comprising;

  • connection means for a plurality of constituent virtual networks sharing a physical infrastructure, arranged such that, in use each constituent virtual network may be connected to one or more terminals carrying network traffic having a respective security class;

    encryption means for encrypting traffic on the first virtual network supporting the low-security users, a gateway connecting the constituent virtual networks to each other, the gateway having means for identifying network traffic passing from a first virtual network associated with a lower security class to a second virtual network associated with a higher security class, and access means for allowing only such network traffic from the first virtual network that is correctly so encrypted to be carried over the second virtual network supporting the high-security users.

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