multicast is an IP protocol. But all of the routing equipment between the multicast server and client have to support it in order for it to work. Since multicast isn't required in IPv4, using it across the internet isn't always possible these days. multicast is required in IPv6.
The Multicast HOWTO has good info: http://www.tldp.org/HOWTO/Multicast-HOWTO-2.html
.hc
On Mon, 10 Nov 2003, d.lj wrote:
hi.
i m not too up to date with multicast really. but generally, isnt multicasting working mostly on IP routing and your host OS's IP layer? so, from your interface configuration your router knows which multicast group you belong to? bst, j
[ben@ekran.org]->[[PD-dev] OSC over multicast]->[03-11-06 09:47]
|Hey all, | |Last year I thought about writing a multicast communication object for PD. |Then I did not have enough time and it never got off the ground. Now I |have the need to communicate between PD and MAX over multcast, and I think |OSC is the way to go... | |I *seem* to be able to specify a multicast region to send to (port IP |combination) which is not a host but a virtual multcast group. (I guess |this part is the same between UDP and multicast? | |What is missing is being able to route data from multicast, ie being able |to specify not a port [because the connection is not to the host] but a |port/IP of a multicast group... | |There may be video and audio data packets flying around that area, but I |think the OSC naming will ignore that data any only route OSC packets it |sees in the multicast group... | |Each client in a multicast region has a "SRCID" that defines what data |comes from whom. It would be REALLY nice if this could be integrated into |the naming scheme so that one could route data OSC based on who sent it... |I suppose this would be easy enough by prepending a unique name for each |client before sending out the data? It would be also nice to be able to |create a list of clients in the region by the OSC name... | |Ok, anyone interested? (come on out you AG people!) | |Thanks |Ben | | | |_______________________________________________ |PD-dev mailing list |PD-dev@iem.at |http://iem.at/cgi-bin/mailman/listinfo/pd-dev |
-- i x à V · O 7 G GPG-key at http://xdv.org/~jdl/jdl.pub.asc
PD-dev mailing list PD-dev@iem.at http://iem.at/cgi-bin/mailman/listinfo/pd-dev
zen \ \ \[D[D[D[D