4 replies to this topic

[sebswed]

Hi there.

 

Could someone explain what to do? I thought I understood this concept but it doesn't work so I guess I missed something.

 

I have a D-Link modem/router (DSL-2740B) and with that you are allowed to create one free DDNS at https://www.dlinkddns.com/login so I created a host name, lets call it hostname.dlinkddns.com , used the IP address that was showing and saved the settings.

 

I specified this hostname.dlinkddns.com also in my router (ipoe_atm0/atm0) and added a port forward with,

 

Name: Netduino

Address: 192.168.1.2

External port: 80

Internal port: 80

Protocol: TCP

Wan Interface: atm0

 

If I type 192.168.1.2 in my browser I get the Netduino webserver (on my local network)

If I type hostname.dlinkddns.com I get to see my routers login page (on my local network)

 

Outside my local network I do not get a result on hostname.dlinkddns.com

 

I read on the D-Link forum that some firmware versions do not allow passwords longer than 10 digits (I used 9)

I even deleted the host, reset the modem to factory default and tried again. No result.

 

The funny thing is, it used to work with an Arduino, so  know its possible. I just cant remember how I did it the first time

 

Should I use a different port (8080) ?

 

In my code I use: socket.Bind(new IPEndPoint(IPAddress.Any, 80));

 

Is there something obvious missing?

Any advise is welcome.

[Stefan]

It looks like a routing issue. Since many routers use port 80 for the embedded control panel, I wouldn't recommend that port, but it should work if you make a port forwarding rule.

If you make it port 8080 for example, does it work in that case? Just to rule things out.

[NooM]

that happen for me when the router cant resolve the hostname for the server, that it shows its login panel too.

 

i fixed that by giving my device a static ip and entered that in the router, but well, mines a bit different too i guess.

[sebswed]

I had no time to reply earlier. I tried port 8080, (specified port 8080 in my router, netduino and url), no result.

I experimented a little to get the IP address somehow static in the netduino, but got confused with the code

 

I have to experiment some more before I understand how to accomplish this. I downloaded some webserver projects so I can inspect the code they used to see if it makes sense to me. Its like solving a puzzle

[sebswed]

I tried a different webserver project that worked like charm. I even got it to work with DDNS. I guess I must have had something strange in my previous code. Anyways, I thought I just let you guys know that the puzzle got solved (replaced)