--- bzrlib/transport/ftp.py	
+++ bzrlib/transport/ftp.py	
@@ -40,6 +40,7 @@
 from bzrlib.errors import (TransportNotPossible, TransportError,
                            NoSuchFile, FileExists)
 from bzrlib.trace import mutter, warning
+import bzrlib.ui
 
 
 _FTP_cache = {}
@@ -107,8 +108,16 @@
                                            self.is_active)
             return self._FTP_instance
         except ftplib.error_perm, e:
-            raise TransportError(msg="Error setting up connection: %s"
-                                    % str(e), orig_error=e)
+            try:
+                password = bzrlib.ui.ui_factory.get_password(
+                        prompt='FTP %(host)s password',
+                        host=self._host)
+                self._FTP_instance = _find_FTP(hostname, username, password,
+                                               self.is_active)
+                return self._FTP_instance
+            except ftplib.error_perm, e:
+                raise TransportError(msg="Error setting up connection: %s"
+                                        % str(e), orig_error=e)
 
     def should_cache(self):
         """Return True if the data pulled across should be cached locally.