Charles-Francois Natali <neolo...@free.fr> added the comment: Are you using a default gateway ? Are you sure this gateway supports multicast ? See for example http://www.sockets.com/err_lst1.htm#WSAENETUNREACH : """ WSAENETUNREACH (10051) Network is unreachable.
Berkeley description: A socket operation was attempted to an unreachable network. WinSock description: Almost same as Berkeley. For WinSock, this error is equivalent to Berkeley's EHOSTUNREACH error, the catch-all error for unreachable hosts. "You can't get there from here." TCP/IP scenario: The local network system could generate this error if there isn't a default route configured. Typically, though, WinSock generates this error when it receives a "host unreachable" ICMP message from a router. The ICMP message means that a router can't forward the IP datagram, possibly because it didn't get a response to the ARP request (which might mean the destination host is down). Note: this error may also result if you are trying to send a multicast packet and the default gateway does not support multicast (check your interface configuration). """ By the way, when you submit this kind of issue, it's a lot easier to analyse if you provide a sample code. ---------- nosy: +neologix _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue11247> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
