Try to use advanced mode and try to specify different IP address
when you clic "apply" the web page does not comes and it's finished with this error message :
Fatal error: Maximum execution time of 30 seconds exceeded in /UNIONFS/var/www/WANem/currval-advanced.inc.php on line 97
note i try to do 2 (may be more) "tunnels" with something like
limit 20kb/s from IP A.A.A.A/255.255.255.255 to IP B.B.B.B/255.255.255.255 on any port (or specific port)
limit 200kb/s from IP A.A.A.A/255.255.255.255 to IP C.C.C.C/255.255.255.255 on any port (or specific port)
M.K.Nambiar has confirmed the trouble on the forum.
This bug is opened for tracking only.