1. Show NAT

Router#show run | include ip nat inside

Output example:

ip nat inside source list 1 interface GigabitEthernet0 overload

2. Show ACL

Router#show run | include access-list 101

Example output:

access-list 101 permit ip 10.10.0.0 0.0.255.255 any

Create portforward if use public IP on port:

ip nat inside source static tcp 192.168.1.14 3389 interface GigabitEthernet0 3389

Portforward use specific public IP:

ip nat inside source static tcp 10.10.0.1 443 123.123.123.123 443 extendable