Re: Use of ethernet frame without TCP/IP


You could setup a private IP network, using addresses from the private
blocks detailed in [RFC1918].

I need to encapsulte the data in the ethernet frame without using TCP/
IP . Only just the length parameter in the EtherType/Length field of
ethernet frame . Is this possible ?
If yes , how can it be done ?

Well, yes, altough the details depend on the software you're using.
Under linux opening a raw ethernet socket (which probably requires
root rights) is a possibility.

Question is, what made you conclude you need to bypass the IP stack and
dispense with its services?

As noted above, there is a way to use IP addresses while not connected
to the internet. I think doing that will likely be simpler and easier.


Well , if I want to talk between 2 ethernet devices directly ( both in
same LAN) , won't the bypassing of IP stack provide me with better
latency , avoiding overhead of IP header ( or maybe TCP header ) .

.

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