UDP Broadcasting

UDP broadcasting provides a partial solution to these issues

Allows a single transmission to be delivered to all applications on a network who are receiving on a particular port

Useful for small net-VE’s

Expensive

every host on network must receive and process every broadcast packet

Not used for large or internet based VE’s (use IP Multicast)

Again subject to the usual supiscion from your local network administrator

No way to use it over the public internet

Use of a bit mask representing the subnet of hosts that should receive that message : control of the scope or range of the broadcast.

For instance, to broadcast only on the escience lab network (150.203.164.*), one should use the mask 150.203.164.255

eScience