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Methods for processing a media flow at an end of a tunneling association in a data network. One method includes receiving a data packet on a public network, such as the Internet, and recognizing that it encapsulates another data packet for a virtual connection to an application. The virtual connecti

Methods for processing a media flow at an end of a tunneling association in a data network. One method includes receiving a data packet on a public network, such as the Internet, and recognizing that it encapsulates another data packet for a virtual connection to an application. The virtual connection is addressed by private network addresses. Another method includes constructing a data packet for a virtual connection to the application and encapsulating it for transmission on the public network. The methods provide for hiding the identity of the originating and terminating ends of the tunneling association from the other users of the public network. Hiding the identities may prevent interception of media flow between the ends of the tunneling association or eavesdropping on Voice-over-Internet-Protocol calls. The methods increase the security of communication on the data network without imposing a computational burden on the devices in the data network.

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Methods for processing a media flow at an end of a tunneling association in a data network. One method includes receiving a data packet on a public network, such as the Internet, and recognizing that it encapsulates another data packet for a virtual connection to an application. The virtual connecti

Methods for processing a media flow at an end of a tunneling association in a data network. One method includes receiving a data packet on a public network, such as the Internet, and recognizing that it encapsulates another data packet for a virtual connection to an application. The virtual connection is addressed by private network addresses. Another method includes constructing a data packet for a virtual connection to the application and encapsulating it for transmission on the public network. The methods provide for hiding the identity of the originating and terminating ends of the tunneling association from the other users of the public network. Hiding the identities may prevent interception of media flow between the ends of the tunneling association or eavesdropping on Voice-over-Internet-Protocol calls. The methods increase the security of communication on the data network without imposing a computational burden on the devices in the data network. ion applied to the surface is used as a guide for reworking the surface. 10. A method of marking on a surface of a part a graphical representation of deviations of the surface from a design standard for the surface, the method comprising: positioning the part in a fixture at a predetermined orientation; capturing at least one digital image of the surface; downloading the at least one digital image to an automatic data processing system; processing information from the at least one digital image to determine a measured point position for each of a plurality of points on the surface; determining from the design standard an expected point position relative to the fixed reference frame for each of the plurality of points; calculating a point deviation for each of the plurality of points using the measured point position and the expected point position; determining deviation regions for the surface, each deviation region including only surface points having point deviations within a predefined deviation range associated with the deviation region; displaying a graphical representation of the surface illustrating the deviation regions on a graphical user interface; and applying a copy of the graphical representation to the surface. 11. A method according to claim 10 wherein each deviation region is assigned a unique color for use in illustrating the deviation region in the graphical representation of the surface. 12. A method according to claim 11 wherein the step of applying a copy of the graphical representation to the surface includes marking on the surface a representation of each deviation region using the color assigned to the deviation region. 13. A method according to claim 10 further comprising: identifying deviation regions that include points with deviations that exceed predetermined tolerance criteria. 14. A method according to claim 13 further comprising: reworking the surface in response to identification of deviation regions that include points with deviations exceeding the predetermined tolerance criteria. 15. A method according to claim 14 wherein the copy of the graphical representation applied to the surface is used as a guide for reworking the surface. 16. An inspection system for inspecting and marking a surface of a part, the system comprising: a measurement station having means for obtaining spatial position data relative to a fixed reference frame for each of a plurality of points on the surface; a data processing system in communication with the means for obtaining spatial position data, the data processing system having means for receiving the spatial position data and for determining a point deviation from a surface standard point for each of at least a portion of the plurality of surface points and means for preparing a graphical representation of a deviation map of the surface; and a marking station having means for marking a copy of the graphical representation on the surface of the part, the means for marking being in communication with the data processing system. 17. A system according to claim 16 wherein the measurement station includes means for securing the part in a predetermined orientation with respect to the fixed reference frame. 18. A system according to claim 17 wherein the means for obtaining spatial position data includes an optical-based meteorology system having at least one digital imaging device configured for obtaining digital images of the surface. 19. A system according to claim 16 wherein the means for marking includes a printing arrangement having a remotely controllable printing applicator, the printing arrangement being configured for application of the graphical representation to the surface. 20. A system according to claim 16 wherein the means for preparing a graphical representation includes means for determining a set of deviation regions that can be depicted in the graphical representation, each deviation region including points having point dev iations in a predetermined deviation range. 21. A system according to claim 20 wherein each deviation region is depicted in the graphical representation using a different color. 22. A system according to claim 16 wherein the data processing system includes a graphical user interface for selective display of the graphical representation. 23. An inspection system for inspecting and marking a surface of a part, the system comprising: a measurement station including a measuring system configured to obtain spatial position data relative to a fixed reference frame for each of a plurality of points on the surface; a data processing system in communication with the measuring system, the data processing system including a mapping module programmed to use the spatial position data to form a three dimensional map of the surface, a deviation determination module programmed to determine a point deviation for each of at least a portion of the plurality of surface points, and a deviation map module programmed to construct a graphical representation of a deviation map of the surface; and a marking station including an image transfer system in communication with the data processing system, the image transfer system being configured to mark a copy of the graphical representation on the surface of the part. 24. A system according to claim 23 wherein the measurement station includes a fixture configured to secure the part in a predetermined orientation with respect to the fixed reference frame. 25. A system according to claim 24 wherein the spatial position data includes at least one digital image of the surface and wherein the measuring system includes an optical-based meteorology arrangement having at least one digital imaging device configured to obtain the at least one digital image of the surface. 26. A system according to claim 23 wherein the image transfer system includes a printing arrangement having a remotely controllable printing applicator, the printing arrangement being configured for application of the graphical representation to the surface. 27. A system according to claim 23 wherein the deviation map module is further programmed to determine a set of deviation regions that can be depicted in the graphical representation, each deviation region including points having point deviations in a predetermined deviation range. 28. A system according to claim 24 wherein each deviation region is depicted in the graphical representation using a different color. 29. A system according to claim 23 wherein the data processing system includes a graphical user interface for selective display of the graphical representation. 30. An inspection system for inspecting and marking a surface of a part, the system comprising: a measurement station including a measuring system configured to obtain spatial position data relative to a fixed reference frame for each of a plurality of points on the surface; a data processing system in communication with the measuring system, the data processing system including a mapping module programmed to use the spatial position data to form a three dimensional map of the surface, a deviation determination module programmed to determine a point deviation for each of at least a portion of the plurality of surface points, a deviation map module programmed to construct a graphical representation of a deviation map of the surface and a graphical user interface for selective display of the graphical representation; and a marking station including an image transfer system in communication with the data processing system, the image transfer system including a printing arrangement having a remotely controllable printing applicator, the printing arrangement being configured for application of the graphical representation to the surface. 31. A system according to claim 30 wherein the measurement station includes a fixture configured to secure the part in a predetermined orientation with respect to the fixe d reference frame. 32. A system according to claim 31 wherein the spatial position data includes at least one digital image of the surface and wherein the measuring system includes an optical-based meteorology arrangement having at least one digital imaging device configured to obtain the at least one digital image of the surface. 33. A system according to claim 30 wherein the deviation map module is further programmed to determine a set of deviation regions that can be depicted in the graphical representation, each deviation region including points having point deviations in a predetermined deviation range. 34. A system according to claim 33 wherein each deviation region is depicted in the graphical representation using a different color. 35. An inspection system for inspecting and marking a surface of a part, the system comprising: a fixture configured to secure the part in a predetermined orientation with respect to a fixed reference frame; an optical-based meteorology arrangement having at least one digital imaging device configured to obtain at least one digital image of the surface of the part for use in obtaining spatial position data relative to the fixed reference frame for each of a plurality of points on the surface; a data processing system in communication with at least one digital imaging device, the data processing system including a mapping module programmed to use the at least one digital image to determine spatial position data for each of the plurality of points on the surface and to form a three dimensional map of the surface, a deviation determination module programmed to determine a point deviation for each of at least a portion of the plurality of surface points, a deviation map module programmed to construct a deviation map including a set of deviation regions for the surface and to construct a graphical representation of the deviation map and a graphical user interface for selective display of the graphical representation; and a marking station including an image transfer system in communication with the data processing system, the image transfer system including a printing arrangement having a remotely controllable printing applicator, the printing arrangement being configured for application of the graphical representation to the surface. 36. A system according to claim 35 wherein each deviation region is depicted in the graphical representation using a different color.