On 22/08/12 09:29:37, Guillaume Comte wrote: > Le mercredi 22 août 2012 04:10:43 UTC+2, Dennis Lee Bieber a écrit : >> On Tue, 21 Aug 2012 10:00:28 -0700 (PDT), Guillaume Comte >> <guillaume.comt...@gmail.com> declaimed the following in >> gmane.comp.python.general:
>> A later follow-up >>> Unfortunately, my_socket.bind((src_addr, 1)) doesn't work. I get the >>> error message: "socket.error: [Errno 49] Can't assign requested address"... >> Since .bind() is used to set up a /listener/, the network stack Not necessarily. That is, a listener is normally bound to a specific port, since otherwise the client doesn't know what port to connect to (unless you provide that factoid on another port). But nothing prevents a client from binding its socket to a specific port number. These days, that doesn't buy you much, but in the old days, some services would only talk to clients using privileged port numbers (<1024). >> (LINK layer) probably has to be tied to the IP address; that is, a valid >> "source" address needs to be supplied to .bind. > Do you mean that an alias is not a valid source address? Because ping.c can > do it... > I've also tried changing the port to 3333 or 8080 but the same error happens. On my laptop, 0 appears to be the only port number that bind accepts for a raw socket. Other numbers I tried all raise "socket.error: [Errno 49] Can't assign requested address". But this might depend on your OS. What OS are you using? Hope this helps, -- HansM -- http://mail.python.org/mailman/listinfo/python-list
