david@dcl-cs.UUCP (David Coffield) (06/08/85)
Can anyone suggest a checklist of things to do to get broadcasting to work with sockets in the Internet domain? I have a sender process and some receiver processes. The sender is supposed to broadcast a message, the receivers pick it up and echo it to their screens. Both sender and receiver programs work for "hardwired" addresses. Change the sender to send a broadcast and nothing happens. The sender program is run as root, since only root may send broadcast messages, and the broadcast address is a 0 (actually 150.0.0.0 for our local set up). The underlying net is an Ethernet. The machines in question are a VAX 11/750 and SUN workstations (DEUNA and 3Com controllers respectively). Does anyone have any ideas what I may be doing wrong? Thanks, David. -- NAME: David Coffield PHONE: +44 524 65201 ext 4150 UUCP: ...!ukc!icdoc!dcl-cs!david DARPA: david%lancs.comp@uk.ac.ucl.cs JANET: david@uk.ac.lancs.comp POST: University of Lancaster, Department of Computing, Engineering Building, Bailrigg, Lancaster, LA1 4YR, UK.