After some help. This is a compliated one!
I have a zoom x3 adsl modem/router which has one ethernet out port.
This I have connected to the WAN port of my d-link di-624+ wireless router.
The zoom is on the IP range 10.0.0.XX and the d-link on the range 10.0.1.XX. (having the different ranges is the only way that I could get them to work together and give me connectivity)
Everything connected to the network does so on the d-link range.
So the problem I have is that, no matter what I do, I can't get ports to be fully open for bittorrent etc. I've even set up DMZs on both the zoom and the d-link (I know it's not a good idea, but I wanted to see if anything would work!) but to no avail.
The ports I open on the d-link and the DMZ I set up always point to my computer on the network and I've tried to open up the ports on the zoom to both the computer and also the d-link, but neither scenario works
(so, for example, zoom [ip 10.0.0.1] has port 6881 [both udp & tcp] or dmz open to d-link router [ip 10.0.1.1]. d-link has port 6881 [both udp & tcp] open to pc [ip 10.0.1.100] - doesn't work.
scenario 2 - zoom has port 6881 [tcp & udp] or dmz opened directly to the computer [ip 10.0.1.100] as does the d-link - doesn't work.)
I have a basic understanding of NAT routing and in the past, this hasn't really been an issue where I've just had a cable modem and attache to the router, but I think it's the combo of the zoom and the d-link that is causing an issue, but there must be a way around it?
Both Shields Up and Azureus show an issue with the ports. It's driving me crazy!
Any help or suggestions would be greatly appreciated.