How to map Cisco Nat serial ports? For example, map the external 9000~ 10000 port to the internal 9000 ~192.168.1.2 port.
Ip nat internal source static TCP192.168.1.2 9000 218.92.25.62 9000 is extensible.
What's with all these port mappings? It's not safe. I really need to open it again. As above.