When you specify a protocol as part of the 'static' command as you would for port redirection, the 'static' is not a regular static
anymore. In that case you want to make sure that there is translation both ways for the inside host that is part of the STATIC.
If you are using a different IP address for the STATIC, then you need to specify a NAT translation for that inside host and a GLOBAL
statement. You do that with a 'nat (inside) #' and 'global
(outside) #'.
The # is an ID DIFFERENT from the current NAT and GLOBAL, and it only includes the inside host's IPfor the 'nat' statement and the
external IP for the 'global' statement, as found in the STATIC with
port redirection statement.
After this, make sure to create the 'access-lists' or 'conduit' statements for the external ports that were specified in the 'static'
statement.