I need to connect my ISP WAN router to my personal router. I need to access my networking services such as HTTP,FTP from the internet. My question is, what should I do in this case? Should I bridge the two routers on Ethernet , or to NAT a physical port from ISP router to my home router? And most importantly, how can I do it? I have some basic networking knowledge, I'll be able to understand if I'll get some hints.