ether type for adding custom protocol on ethernet frame

Question

I want to use send and receive data using raw socket communication with my own custom protocol. i won't be using TCP/IP/UDP stack. I want to send directly data using destination MAC address with payload of Ethernet frame with data i defined.

i see from the list https://www.iana.org/assignments/ieee-802-numbers/ieee-802-numbers.xhtml that the 65535 FFFF - - Reserved [RFC1701] , is this range i can use ?

My question is for this, what should be the Ethernet Type I should be using, is there any Ethernet type for general usage that any one can use or we have to register it through IEEE Registration Authority ?

Answer 1

You can use any Ethertype that doesn't collide with any protocol in use in your network.

You should use only Ethertypes that you have previously registered with IANA IEEE, especially for anything you're planning to sell at some time.