I have tried MITM on my own network using ettercao, but the program just didn't detect anything. I switched to using arpspoof and sslstrip, but the same thing happens. think the arp spoofing is working (the websites take longer to load), but no passwords are showed.

I have confiured iptables for forwarding, from what i have read in online tutorials, but it just doesn't work.

What am i doing wrong ?