Accessing my coldfusion server via my computers external ip address

No problem.

From your CF Server's perspective, there's absolutely no difference between coming from inside your router, to coming from outside your router, unless you have a firewall on the CF server that is blocking requests based on IP address. If not, then either you're trying to go to the wrong IP address from outside, or your router isn't setup right to do the port forwarding (but what you posted sounds correct).

Good luck.

Yes I can go to that address and it works; and yes the diacram you drew is correct. Now i dont think its the ISP; because it hasn't changed from my old computer (which had this working) and my new computer. I am not currently at home so i can't check my Linksys page at present. Thanks.

---Skotopia

That sounds right. So within your network (ie, behind your Linksys router) you can go to http://192.168.1.101:8500 and it works?

The only other possibility is that your ISP is blocking incoming port 8500, which seems unlikely.

Just to be sure, the connection from your CF server to the internet is as follows:

CF Server --- Linksys Router --- Cable/DSL Modem --- Internet

When you're on the Linksys router setup page, what's listed as its external address? is that the same address you get from whatismyip.com?

Hmm okay thanks for the help; let me explain what i did with my router; and you can tell me what i'm doing wrong ;)

In my browser i go to the default gateway ip address listed form ipconfig to access my linksys router. I go to the "Applications Gaming Tap" and then the "Port forwarding" subtab. Then I fill out one of the rows as follows:

ColdFusion Start: 8500 to End: 8500 Protocal: Both IP Address: 192.168.1.101 (internal address from ip config) and then check the enable box.

Then I save the settings of course. Now; this is what i thought I had to do; is there something else? Thank you again very very much for all your help.

--Skotopia

Nope. There is no setting you need to change on the CF server if it's working from within the internal network.

Reasoning:
It works if you request, from within the internal network, http://internalCFServerIP:8500
It times out if you request, from outside the internal network,
http://externalIP:8500
Therefore, the CF server is setup to listen to connections outside of itself (127.0.0.1) because it successfully responds to requests from the local subnet.

You need the router to be configured to forward requests for externalIP:8500 to internalCFServerIP:8500. Obviously it isn't setup correctly.

If it works from inside your router, then you have port forwarding setup incorrectly.

are you trying to go to http://externalip:8500 from outside your router? or are you trying to go to that URL on the same internal computer?

Some routers don't support going to an external IP that's forwarded from within the router.

If you're trying to go to it from outside, are you sure you have port forwarding on your router setup correctly?

Do you have another computer on your internal network where you could try going to http://internalip:8500 to take the router out of the picture?

Make sure your firewall has port 8500 open.