We have just purchased B.T broadband with the new home hub, we have set up our hub/router the same as our old one with the correct ports forwarded for exchange to work and remote web space, it all works internally accessing the address but nothing works externally, emails don't get through etc..
Also why does my device not appear in the DMZ drop down?
Much appreciated any help, thanks a lot
The home hub firewall will offer no protection to a device in the DMZ, as all incoming ports will be forwarded to the device.
All you will be left with is the normal NAT function, which is needed to provide a range of local IP adresses.
If you look at my security page, you will see there is a website you can use to find open ports.
You may find it better to use a router which supports local loopback.