Peter Steele wrote in news:f37ccb35-8439-42cd-a063-962249b44...@googlegroups.com in comp.lang.python:
> I want to write a program in Python that sends a broadcast message > using raw sockets. The system where this program will run has no IP or > default route defined, hence the reason I need to use a broadcast > message. > > I've done some searches and found some bits and pieces about using raw > sockets in Python, but I haven't been able to find an example that > explains how to construct a broadcast message using raw sockets. > > Any pointers would be appreciated. This is part of my Wake-On-Lan script: def WOL_by_mac( mac, ip = '<broadcast>', port = 9 ): import struct, socket a = mac.replace( ':', '-' ).split( '-' ) addr = struct.pack( 'B'*6, *[ int(_, 16) for _ in a ] ) msg = b'\xff' * 6 + addr * 16 s = socket.socket( socket.AF_INET, socket.SOCK_DGRAM ) s.setsockopt( socket.SOL_SOCKET, socket.SO_BROADCAST, 1 ) s.sendto( msg, ( ip, port ) ) s.close() The mac address is 6 pairs of hex digits seperated by '-' or ':'. http://en.wikipedia.org/wiki/Wake-on-LAN Rob. -- http://mail.python.org/mailman/listinfo/python-list