woodseaves:- what darrenob has said is spot on mostly. What may be confusing you is the IP address / DNS issue. If you're sharing on your internal LAN then you'll most likely be using local IP addresses. For example if your DM7025 serving the card has an IP address of 192.168.1.100 then you N line in your DM8000 will probably start with that IP address.
N: 192.168.1.100
This ofcourse is no good for your uncle. He needs to use your external or WAN IP address. Further to that you need to forward or open the port in your router so that incoming connections from N lines are pointed to your DM7025 that is hosting the card.
So lets says your newcamd_port is 10000 on your server (DM7025). Your N line in your DM8000 will be :-
N: 192.168.1.100 10000 DM8000 password 01 02 03 04 05 06 07 08 09 10 11 12 13 14
So thats the IP Address of your server box, and the port you've set in the newcs.xml to serve the card on.
In your router you need to open port 10000 to 192.168.1.100.
If your WAN IP address is 80.80.80.80 ( set by your ISP in your modem and passed to your router) then your uncles N line would be :-
N: 80.80.80.80 10000 Uncle password 01 02 03 04 05 06 07 08 09 10 11 12 13 14
If your WAN IP is not static, which most aren't this could be a problem ofcourse for your uncle because if you reboot your modem and your ISP gives you a different WAN IP address which is common,then your uncles N line now contains the wrong address.
This is where DNS accounts come in handy. You can regsiter at DynDNS for a free account. This will give you info that you enter into your router which will track your WAN IP Address. Using this you can have a DNS address that always points to you even if your IP address changes.
So as darrenob has said your uncles N line would then be:-
N: woodseaves.dyndns.org 10000 Uncle password 01 02 03 04 05 06 07 08 09 10 11 12 13 14
Hope this makes sense. Its really very very easy.
Now, please keep this thread on topic and don't hijack it by delving deeper into DNS addresses and port forwarding. If you need further help on this subject please use other threads or start a new one.
This thread is about 1 card and how to use it, nothing else. Cheers.