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
Testing apparatus and testing method for telephone apparatus
Catheter with multiple electrode assemblies for use at or near tubular regions of the heart
PC secure video path
Soybean cultivar CL0911444
AC/DC converter
Compounds, compositions and methods for reducing lipid levels
Method of enhancing corrosion resistance of hollow vessels
  Randomly Featured Patents
Semiconductor device having improved solder joint and internal lead lifetimes
Storage and mounting device for a dental retentive pin
Solid imaging compositions for preparing polyethylene-like articles
Dual salicides for integrated circuits
Fluorescent lamp with reduced sputtering
Lisfranc repair using suture-button construct
Method of making a secondary for use in induction motors
Method for producing a nozzle for a rocket engine
Methods for facilitating an online transaction of a firearm
Oral compositions and methods for treating gingivitis