You might want to read this for a bit of a primer https://apenwarr.ca/log/20170810 https://apenwarr.ca/log/20170810 > The point of all this is that ethernet a

You might want to read this for a bit of a primer https://apenwarr.ca/log/20170810 https://apenwarr.ca/log/20170810 > The point of all this is that ethernet and IP were getting further and further intertwined. They're nowadays almost inseparable. It's hard to imagine a network interface (except ppp0) without a 48-bit MAC address, and it's hard to imagine that network interface working without an IP address. You write your IP routing table using IP addresses, but of course you know you're lying when you name the router by IP address; you're just indirectly saying that you want to route via a MAC address. And you have ARP, which gets bridged but not really, and DHCP, which is an IP packet but is really an ethernet protocol, and so on.