Method and apparatus for tunneling data through a single port
First Claim
1. A method for tunneling data associated with a packet based multimedia communication standard, comprising:
- intercepting a library call associated with the multimedia communication standard;
registering identification data associated with the library call;
adding a Transmission Control Protocol/Internet Protocol (TCP/IP) header over a pre-existing header of a data packet related to the identification data; and
transmitting the data packet having the (TCP/IP) header through a firewall.
2 Assignments
0 Petitions
Accused Products
Abstract
A communication protocol stack for enabling multimedia communication between communicating devices where multiple port communication data is tunneled through a single TCP port is provided. The communication protocol stack includes, at an application level, the capability to identify whether received communication data is for a communication port. If the received communication data is for the communication port, then the communication protocol stack includes the ability to forward identification data regarding the received communication data to a table in advance of forwarding the received communication data to a driver level of the communication protocol stack. A method, computer readable medium, and a system for tunneling port traffic through a single HTTP port are also provided.
52 Citations
30 Claims
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1. A method for tunneling data associated with a packet based multimedia communication standard, comprising:
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intercepting a library call associated with the multimedia communication standard;
registering identification data associated with the library call;
adding a Transmission Control Protocol/Internet Protocol (TCP/IP) header over a pre-existing header of a data packet related to the identification data; and
transmitting the data packet having the (TCP/IP) header through a firewall. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method for communicating port traffic through a single Hypertext Transfer Protocol (HTTP) port, comprising:
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a) establishing a connection between a first and second computing device;
b) transmitting allocation data associated with the port traffic to a tunneling driver;
c) segmenting the port traffic into datagrams;
d) appending a first header to each one of the datagrams; and
e) appending a Transmission Control Protocol/Internet Protocol (TCP/IP) header over the first header, wherein the TCP/IP header is configured to direct each one of the datagrams to the single HTTP port. - View Dependent Claims (8, 9, 10, 11)
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12. A computer readable medium having program instructions for tunneling data associated with a packet based multimedia communication standard, comprising:
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program instructions for intercepting a library call associated with the multimedia communication standard;
program instructions for registering identification data associated with the library call;
program instructions for adding a Transmission Control Protocol/Internet Protocol (TCP/IP) header over a pre-existing header of a data packet related to the identification data; and
program instructions for transmitting the data packet having the (TCP/IP) header through a firewall. - View Dependent Claims (13, 14, 15, 16, 17)
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18. A computer readable medium having program instructions for communicating port traffic through a single Hypertext Transfer Protocol (HTTP) port, comprising:
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a) program instructions for establishing a connection between a first and second computing device;
b) program instructions for transmitting allocation data associated with the port traffic to a tunneling driver;
c) program instructions for segmenting the port traffic into datagrams;
d) program instructions for appending a first header to each one of the datagrams; and
e) program instructions for appending a Transmission Control Protocol/Internet Protocol (TCP/IP) header over the first header, wherein the TCP/IP header is configured to direct each one of the datagrams to the single HTTP port. - View Dependent Claims (19, 20, 21, 22)
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23. A system for tunneling port traffic destined for multiple ports through a single port, comprising:
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a server configured to transmit data packets each having a tunneling header in addition to a packet header;
a firewall limiting a number of unblocked TCP ports, the firewall capable of analyzing the tunneling header, wherein the tunneling header is associated with the single port so that the firewall allows the data packets to pass through; and
a client configured to receive the data packets from the firewall through the single port, the client further configured to identify a flag and a checksum associated with the tunneling header in order to strip the tunneling header for access to the packet header. - View Dependent Claims (24, 25, 26)
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27. A communication protocol stack for enabling multimedia communication between communicating devices, comprising:
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at an application level, identifying whether received communication data is for a communication port; and
if the received communication data is for the communication port, forwarding identification data regarding the received communication data to a table in advance of forwarding the received communication data to a driver level of the communication protocol stack. - View Dependent Claims (28, 29, 30)
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Specification