Patent ID: 8931076
Filing Date: 2015-01-06
Classification: H04L

Abstract:
1. A computer implemented method to direct at least one secure router, the method comprising: receiving a secure route query from a trusted host, the secure route query comprising a trusted host address, a destination host address and a one classification level; looking up at least one path having as endpoints, the trusted host address and the destination host address, wherein the at least one path is an inadequate path to interconnect a trusted host corresponding to the trusted host address and a destination host corresponding to the destination host address via at least one secure router having clearance levels at or above the one classification level and failing to locate any adequate paths and, in response, a secure route discovery node transmitting a secure route discovery node response as a packet to the trusted host, the packet having an empty string, wherein the packet having the empty string is a packet that contains null data at a payload field of the packet.