Also i'm planning to do thatne public ip for these:a email server,a web server,a vpn network. i will create a filter so that any a request with 1 port will be redirected to (a web server) and 2 port will be redirectd to (a email server) and 3 port to a vpn server. (1,2,3 ports just an example hhhh)

Can i get that running ?