I am messing around at work trying to set up a ftp server behind a cisco 2600 i have set the static port forwarding
ip nat inside source static tcp 10.1.1.31 21 interface Dialer1 21
but ftp programs try to make a second connection to a super high port such as 40*** i have looked all over the web and do not have the documentation for the router can anyone help me out with a config i could use to enable complete ftp forwarding.

thank you

//yourname here