Resources Contact Us Home
Method and tool for IP multicast network address translation (MNAT)

Image Number 4 for United States Patent #8054766.

The present invention permits translation of SM addresses (*, G.sub.1) and (*, G.sub.2) to configurable SSM addresses (S.sub.0, G.sub.0). IGMPv2 group membership queries from the receiver subnet are translated to IGMPv3 membership queries for processing in a SSM network. In the preferred embodiment, packets travel via a connection to the multicast router (mrouter). The mrouter queries an IGMPv2 receiver. The IGMPv2 receiver generates a membership report and sends it back to the mrouter. The mrouter translates the membership report into a (S.sub.0, G.sub.0) as specified in a multicast address translation table and stores the translation in the Multicast Forward Information Base (MFIB) located in the mrouter. Multicast payload addressed (S.sub.0, G.sub.0) flowing towards the IGMPv2 receiver can be translated to (S.sub.0, G.sub.0). When media data is addressed to (S.sub.0, G.sub.0), the mrouter consults the MFIB for forwarding and can also translate the destination address to (S.sub.1, G.sub.1).

  Recently Added Patents
Method for combining images and magnetic resonance scanner
Automatic stop and restart device for an engine
Carrying case
Packet transmission system and fault recovery method
Method for producing interferon alpha 5
Sub-LUN input/output profiling for SSD devices
Cell transport system comprising a homogeneous mixture of agarose and agarase
  Randomly Featured Patents
Furnace, especially a coal burning furnace, and method of operation
Back support apparatus and method
Arylsulfonyl compounds with unsaturated radicals
Method and system for the recognition of an optical signal
Magnetic actuator
Milk amount measuring device for milking machines and the method for measuring the same
Distance measuring system using superconducting quantum interference device
Method and arrangement in a radio communications system
Skew cancellation for source synchronous clock and data signals
Container conveying installation for preparing sets of objects