problem with SocketPermission in java policy file

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I'm trying to give permission for my applet use any port of an ftp connection (to upload some files to it), I need to edit the java.policy for for this.
I'm using FTP not on passive mode (The server won't allow passive mode) so the connections are made on port 21, but then the port used for transmission seems to be random...

I need to use this on java.policy file to set permissions:

permission java.net.SocketPermission "ftpserverURL:21", "listen,accept,connect,resolve";

But can I do a general line to allow permissions to all ports?
Something like:

java.net.SocketPermission "ftpserverURL:Allports", "listen,accept,connect,resolve";

Otherwise the JVM keeps giving me a permission error since everytime if tries to start uploading it'll use a different port (I'm not sure why this happens... maybe because it's not on passive mode?).

If anyone can help me please I really need it
thank you