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
Automatic population of feature capabilities on a communication device
Disc shaped high density recording medium
Image capture and identification system and process
Portion of a display panel with an unhappy facial expression icon
Anti-infective derivatives, method for the production thereof, pharmaceutical compositions containing same and uses of said derivatives in treatment
Cosmetic product including vegetable oil blend
  Randomly Featured Patents
Alkali developable photosensitive resin composition comprising a binder having betaine side groups
Spectrally tunable infrared image sensor having multi-band stacked detectors
Vacuum cleaner filter
Method of making a semiconductor device with changeable interconnection
Puffer-type medium or high tension circuit breaker
Spectrograph for an extended spectral field in which partial planar diffraction spectra are successively formed in the same plane
Internet payment system and method
On-demand paging-in of pages with read-only file system
Detachable connecting system
Elevator control apparatus