Ok so the other day i was trying to change my NAT type 3 to NAT type 2. I searched the internet and found a guide to opening ports, but that didnt work properly (I think i did it wrong). Then i read i could use my broadband username and password in the PPoEE (Sorry if i spelt it wrong), and that gave me a NAT type 1. My question is, since im now connected straight to the internet while bypassing my routers firewall, is there a risk i could get a virus from the PS3?

And is NAT type 2 better than NAT type 1?