hi how much different iptables are in 7 from 6 I'm just learning, I expected that since IFs belong to the same zone traffic between them would pass, be forwarded without any extra settings/configuration but, I'm wrong it turns out. Am I missing something and there actually is a simple way, designed to make that routing between lans/interfaces just work - a one liner, one option/setting in that comprehensive(?) firewalld configuration? How does firewall make your centos a router of directly connected LANs?

many thanks L.