Odd situation trying to set up a FTP server

[alfa147x]

I just bought a ReadyNAS Duo V2. I set up the NAS the way I would like it to work on the inside of my network. It works great. Now I'm trying to be able to access the files from my office from it.

I forwarded the port 21 on my router. But now I'm trying to figure out my external IP.

I searched google for "whats my ip" and it gave me my ip. When I type the IP I get this:
http://i.imgur.com/gW2YA.png

Now that looks like it's hitting some server my ISP has setup. Not mine...
When I type the ip address into my FTP client that's not on the network it says invalid ip.

Any idea what to do next? Any other route I could take? I'm trying to use it with XBMC so I can pull media files off of it.

Thanks guys!
Alfa

 

[VirtualLarry]

You need a dynamic DNS service account (dyndns.org, no-ip.com, etc.)

You configure their client software on one of your PCs on your LAN that runs 24/7, and when your ISP changes your IP, the client detects it and updates the dynamic IP record on the service. You get to choose a hostname, such as my-host.dyndns.org.

Then, you need to punch a hole in your router, forwarding ports to the NAS on the LAN.

Lastly, you will not normally be able to access the NAS using your dynamic IP hostname, nor your external (ISP-assigned) IP address, unless your router supports "localhost loopback" feature.

I have the same problem. I have a dynamic IP hostname, and I have a NAS on the internet, but when I post img attachments here at AT, I cannot see my own images, because the links are through the dynamic IP hostname.

 

[alfa147x]

Don't dynamic DNS just update the ip address? That way i can type in my-host.dyndns.org and it'll send me to the correct ip address?

Thanks for helping