You need to create rules in the firewall as well as router. Some of these can be through the web interface of the appliance. You can enable PPTP pass-through in your Trendnet.
Hope this helps.
You probably will not have a static IP address from your provider unless you are paying for it. So, you will need to register for a <a href=”http://www.dyndns.com/”>dynamic DNS record</a> so remote users can “find” your server.
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