Note: This program is no longer being updated or maintained by Tom Lehman. The code base and functionality has been absorbed into (and extended by) the Access Grid community as part of the QuickBridge program.

Mbone Multicast/Unicast Gateway and Reflector Program

This program provides multicast gateway services. The gateway allows users to run their mbone conferencing tools in unicast mode, and rely on the gateway to join multicast sessions and provide unicast to multicast translation. This functionality provides a method for clients on non-multicast enabled networks to utilize their unicast infrastructure to join multicast groups. The gateway service can also be utilized to interconnect multiple multicast enabled networks via a common non multicast capable infrastructure.


The command line for the gateway is as follows:

Example command lines to run gatway services for the CAIRN sessions are as follows:
The unicast clients should point their Mbone tools (vic, vat, rat, etc) to the machine running this program as the gateway.
Example client command lines to join the CAIRN sessions are as follows(gateway running on helpman.east.isi.edu):



The source code is available here:   mboneuctomcgw.c

An executable compiled on a FreeBSD 2.2.5 system is available here:   mboneuctomcgw.22x

An executable compiled on a FreeBSD 3.3 system is available here:   mboneuctomcgw.3x

Client command lines to join the local ISI East sessions are as follows: