Cable Forum - Help me understand NAT's

Right here goes,

My senario is that I want to have 2 Xbox 360's with an open NAT, since everything I have read and tried just leave either/or fighting over the triggered ports or Upnp feature I came up with this......

Why not connect a spare router and just route Xbox (2) to it,

I have got as far as connecting router 2 (R2) to router 1 (R1) from the WAN on R2 to the LAN on R1, I have also disabled the DHCP as I understand thats what allocates the IP addreses also I have turned off the wireless.

But as yet I am unable to get Xbox2 to detect the network (not doing so well am I) so if anyone can help or just tell me this wont work that would be great,

I do not want to use R2 as a switch, I already have a 16 port switch. Just wanted to mention this as that seems to be the only tutorials I can find!
I actually want to know if its possible to have an IP address on each router with the ports triggered ie 53, 80, 88 & 3074 for each xbox in order to have an open NAT on both xbox's....

My brain hurts after trying to solve this for the kids,

Cheers in advance.

---------- Post added at 22:51 ---------- Previous post was at 22:24 ----------

Right 30 minutes later im ready to answer my own question!

In a word NO.....it seems even though I managed to get Xbox2 to connect through R2 and enabled Upnp on both routers, I still had an open NAT and a moderate NAT.

If anyone has anything to add to this I'd be grateful.