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The following link is the graphical representation of the networking done in my home.

I have a DLINK DIR-600L Wireless router which is connected to modem via a switch. As this router have DDNS service enabled, I registered a domain in '' and configured the router.

Then I setup a webserver under my router network(3) and setup the port forwarding in router from ip ''. Now I can access the hosted website anywhere in my home in ip address ''. Then I configured the DDNS to ip ''. The problem is that this dyndns domain name can only be used inside my home network(1). I need to access my site from anywhere in world via internet. How can I do this?

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You need to forward the port in your modem as well, and point the DDNS to your external address.

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I also had that idea. But the modem and router is connected using a switch. How can i port forward in a switch? – nuke1010 May 17 '13 at 12:06
You can't. But you don't need to, since switches work at a lower level. – Ignacio Vazquez-Abrams May 17 '13 at 12:06
I already done port forwarding in router. IP Address:, Public port: 80, Private port : 8080, Traffic type: TCP & UDP. – nuke1010 May 17 '13 at 12:12
What if I connect another dlink router between modem and switch? Also I could set that router with the ddns service. Can this solve it? – nuke1010 May 17 '13 at 12:19
The more routers you have, the more port forwarding you need to do. – Ignacio Vazquez-Abrams May 17 '13 at 12:20

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