goto 192.168.1.1, log in.
find "LAN WAN Rules" (or similar)
Add your network ip address under LAN Address, and the destination IP will be the IP you use to connect to your computer when not connected to that router/LAN.
find "LAN WAN Rules" (or similar)
Add your network ip address under LAN Address, and the destination IP will be the IP you use to connect to your computer when not connected to that router/LAN.