Hi Marxus, you have to set it to your router the ports

Protocol Port number Access? Notes
80 : Outbound : Standard HTTP
443 : Outbound : HTTPS
5223 : Outbound : Secure Jabber
3478 - 3479 : Outbound + Inbound : STUN
3658 : Outbound + Inbound :Playstation Network

Or the most easy way is set it up as DMZ as PS3 is secure and you don't have to worry for virus or anything.

Ok ok now I sorted it out how to enable your RFOM. Keyword: "SETUP A PROXY SERVER OUTSIDE QATAR". :)

Ok here's what I did.
1. I have a Proxy Server from Philippines
2. I set all route from my Router (Qatar) to my Philippine proxy server
3. Start the RFOM and update to the internet (takes me 15 min to update)
4. Restart your PS3
5. Remove the proxy
6. Then be happy playing RFOM

BTW you can play RFOM if you have Type 3 NAT in PS3 it doesn't matter the difference is you will not only have a online chat (jabber network).

Ok guys try it! Find any proxy server outside qatar basically in US and EU there is a lot and cheap.

Have fun!