I have a machine that serves webpages for configuration. Noramlly we have this connected via a router an ADSL. However some of these pumps are installed in remote locations. And we want to use them with a router that ses a 3G usb modem.
We have setup a test here and have the router set to use DynDNS as Vodafone serve dynamic IPs. When we try access the machine we can not access its pages. The firewall in the router is switched off and the port forward set correctly.
My question is does Vodafone allow incoming connections? If so on which ports?