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#30
@Zinic.
First of all, your big problem there is that you have your two IP's in different subnet ranges. The first 3 blocks of numbers should be the same. Only the last set should be different.
So, for instance: my gateway has an IP of 192.168.1.1 this means that all devices connected to it, MUST have an IP of 192.168.1.xxx if I were to set it to 192.168.2.xxx then it would be outside the subnet and fail.
To answer your second question,yes I forgot to mention that on some routers, it is simply called "Firewall". If you turn that off that will disable NAT.
Looking at the screen of your Dlink router, I'm a little confused. I was going to say that it should be possible to disable NAT. However, on your screenshot, on my Dlink routers, that is exactly where my NAT settings are. a quick google on SPI suggests that is a Firewall, but not NAT. However as said above, turning "Firewall" off on the Belkin will disable NAT, so use that one s your switch.
On the subject of the SSID's. It is quite possible to give them different SSID's and it will work fine. The reason that I personally recommend using the same SSID's is because that way, I only have one password, and it doesn't matter where I am, I will connect fine.
What you may find if you set different SSID's is whichever router has "preference" in your wireless settings may connect automatically, whether it has the strongest signal or not.
I hope this helps :) If not, let me know and I'll try to help further.