The 110.1.200.6 address is your public or Internet address. It is usually assigned dynamically by your Internet Service Provider. The 192.168.24.xxx IP addresses your see on your local home network are a part of special group of IP addresses called private addresses.... they are reserved for use exclusively on private networks, and can never actually be directly connected onto the Internet. Your router uses a firewall feature called Network Adddress Translation (NAT) to convert the private addresses on your home network to the public address. To everything out on the Internet, all traffic originating on your home network appears to all be coming from that public address... the NAT feature allows sharing of that outside/public address by all of your computers, aquarium controller, XBox, Blu-Ray player, iPod Touch, etc. That's why ipchicken saw your IP address as 110.1.200.6. By default, no traffic originating out on the Internet can get through your router.... the only traffic that normally can get through are replies or responses to communications originated by something on your home network... such as you surfing the World Wide Web. Port forwarding is a way to open up an inbound path through your router... essentially, creating a hole through the firewall for a specific type of trafffic to a specific destination on your home network. When we configure port forwarding in the router for our Apex or AC3 controllers, we create that path by virtue of a port forwarding rule specifically to permit web browser traffic (http) to the controller.
Every device on your home network will have a unique 192.168.24.xxx address. This is assigned by a feature in your router called DHCP (Dynamic Host Configuration Protocol). When using DHCP, the address assigned by the router can change over time. If this happens with your controller, the port forwarding rule might end up pointing to the wrong (old) address. So, you will need to set the IP address of your controller to be a static address... like 192.168.24.50. With the Ac3 and Apex, you can just disable the DHPC option in the controller, and it will remember what it was originally assigned by the router.