I've installed OpenWRT 19.07.3 (OpenWrt 19.07.3 r11063-85e04e9f46 / LuCI openwrt-19.07 branch git-20.216.62629-4d5c88b) yesterday and now I'm trying to understand what does interface 'ethernet switch' mean.
Total list of interfaces:
Looks like it's enough to use (add it to LAN) "Switch VLAN (eth0.1)" to have network connection and other stuff.
So, why should I use and configure "Ethernet Switch (eth0)"? What is it and how can I use it? For why? Should I add this interface to any firewall zone (like LAN or WAN)?
Can you please help me to understand the meaning of this interface? I had tried to configure it but saw no difference at all.
p.s. I understand the meaning of a switch in context of networks. I just would like to understand what is influenced by config of this interface. I saw no changes after changing its configuration. thats all