--- ftplib.py	Thu Feb 15 14:54:36 2007
+++ ftplib_new.py	Thu Feb 15 14:56:23 2007
@@ -321,6 +321,12 @@
             host, port = self.makepasv()
             af, socktype, proto, canon, sa = socket.getaddrinfo(host, port, 0, socket.SOCK_STREAM)[0]
             conn = socket.socket(af, socktype, proto)
+            # Bind to the same local address used for the control connection
+            # on any available port.
+            myaddr = self.sock.getsockname()[0]
+            conn.bind((myaddr,0))
+            if self.debugging:
+                print "*bind* " + myaddr + ":" + repr(conn.getsockname()[1])
             conn.connect(sa)
             if rest is not None:
                 self.sendcmd("REST %s" % rest)