DDNS - when ever you reconnect PPPoE (approximately once every 24 hours), your ISP will dynamically assign an available IP. When you want to access your network from outside (say from office, you are trying to access your home n/w), you need to know the IP address. As the IP address changes everytime, you have to setup DDNS in your router. There are DDNS providers like noip.com that will record your IP and map it to an URL like tilt.ddns.net. You need to register with them (some are free and some are paid) and get a ddns account. Upon registration, activate the same in your router. Everytime your IP changes, your router will update your DDNS provider and you can always access your home n/w with a single URL that always points to your current home IP.
When you access this URL it points to your router's external IP address. Hence you will invariably land in your router login page. If you have a surveillance camera or a home storage like a NAS, you will need a static NAT (or Port Forwarding) to access that device from outside.
To start with, you will assign a static LAN IP in the 192.168. range to each device identified by its MAC address. This makes sure that a specific home device gets the same LAN IP everytime.
Then you can setup a NAT (Network Address Translation) by assigning a port number to each device - much like a telephone extension behind a board. To reach the extension, you need to know the extension or its port number. Here you will assign a public TCP port and a Private TCP port. You can reference the device as tilt.ddns.net:10199 and point it to a private port number of 80 (http port of the device). While making public port assignments, google for known port reservations and avoid those.
When you access this URL it points to your router's external IP address. Hence you will invariably land in your router login page. If you have a surveillance camera or a home storage like a NAS, you will need a static NAT (or Port Forwarding) to access that device from outside.
To start with, you will assign a static LAN IP in the 192.168. range to each device identified by its MAC address. This makes sure that a specific home device gets the same LAN IP everytime.
Then you can setup a NAT (Network Address Translation) by assigning a port number to each device - much like a telephone extension behind a board. To reach the extension, you need to know the extension or its port number. Here you will assign a public TCP port and a Private TCP port. You can reference the device as tilt.ddns.net:10199 and point it to a private port number of 80 (http port of the device). While making public port assignments, google for known port reservations and avoid those.
