a. Log-in or continue the session
b. Type in
the following commands:

This filter will allow TCP traffic from any host to any
destination to connect to a destination port number 21, which is an
FTP port number. The syntax for this rule is:
>set filter [filter name] [rule number] [permit/deny] [source
address]
[destination address] [tcp/udp/icmp] [src/dst] eq [port number]
Use 0.0.0.0/0 as all network addresses