All things related to multicast

[Ross Finlayson <>]

With all of the recent interest in 'last mile' multicast tunneling 
solutions, I'm making available - for the remainder of this month - trial 
versions of my UMTP tunneling agents: "liveGate" and 
"liveGateForIntranets".  (These will allow you to, for example, watch the 
upcoming IETF MBone sessions from a non-MBone-accessible network.)

You set up a tunnel by running two tunnel endpoints:

1/ On a computer that's **already on the MBone** (preferably a computer 
that's topologically close to you), download and run "liveGate":
        http://www.live.com/liveGate/
    Configure this using the instructions in:
        http://www.live.com/liveGate/configuration.html

2/ On a computer that's **not** on the MBone (e.g., your home PC, or a 
server on your (non-MBone-accessible) LAN, download and run 
"liveGateForIntranets":
        http://www.live.com/lgfi5654/
    Configure this using the instructions in:
        http://www.live.com/lgfi5654/configuration.html

For example, the following "liveGateInit" file (for "liveGateForIntranets") 
can be used to receive the upcoming IETF MBone sessions:

##### Sample "liveGateInit" file for "liveGateForIntranets" #####
liveGate_createTunnel <name-or-IP-address-of-your-remote-liveGate-server>

proc ietf_c1_h261 {} {
    liveGate_startRelayingRTP 224.0.1.12 61010 127 ;# video
    liveGate_startRelayingRTP 224.0.1.11 21010 127 ;# audio
}
proc ietf_c1_mpeg {} {
    liveGate_startRelayingRTP 224.2.128.17 61030 127 ;# video
    liveGate_startRelayingRTP 224.2.128.16 21030 127 ;# audio
}
proc ietf_c2_h261 {} {
    liveGate_startRelayingRTP 224.0.1.15 61020 127 ;# video
    liveGate_startRelayingRTP 224.0.1.14 21020 127 ;# audio
}
proc ietf_c2_mpeg {} {
    liveGate_startRelayingRTP 224.2.128.19 61040 127 ;# video
    liveGate_startRelayingRTP 224.2.128.18 21040 127 ;# audio
}

proc ietf_c1_h261_ssm {} {
    liveGate_startRelayingRTPSSM 233.55.123.2 128.223.162.20 61010 127
    liveGate_startRelayingRTPSSM 233.55.123.2 128.223.162.20 21010 127
}
proc ietf_c1_mpeg_ssm {} {
    liveGate_startRelayingRTPSSM 233.55.123.4 128.223.162.20 61030 127
    liveGate_startRelayingRTPSSM 233.55.123.4 128.223.162.20 21030 127
}
proc ietf_c2_h261_ssm {} {
    liveGate_startRelayingRTPSSM 233.55.123.3 128.223.162.20 61020 127
    liveGate_startRelayingRTPSSM 233.55.123.3 128.223.162.20 21020 127
}
proc ietf_c2_mpeg_ssm {} {
    liveGate_startRelayingRTPSSM 233.55.123.5 128.223.162.20 61040 127
    liveGate_startRelayingRTPSSM 233.55.123.5 128.223.162.20 21040 127
}

# Then, to start relaying the "IETF channel 1 H.261 session (e.g.)", do:
ietf_c1_h261
# (Repeat as appropriate to relay other sessions)
##### End of sample "liveGateInit" file for "liveGateForIntranets" #####

        Ross.

ps. For more information about UMTP (the multicast tunneling protocol), see 
<http://www.live.com/umtp.txt>