New install of Mesa 7i92 on TCL lathe

Clearly I do not understand the significance of that Robert .
Dont really feel I want to. Just want something which will work .

Is this a peculiarity of 7i92 cards maybe? Might I be better using a different card or combination of cards .
Nothing has been simple with this machine

can you paste the contents of this file please

/etc/network/interfaces

where are you (roughly) located? (I am near Liverpool in the UK)

I thought I had posted a screenshot above Robert ??
I am in Carlisle so not really handy for you

Are you saying I can choose any 3 digits for the last set Tommy? and then change the address in the file to whatever I choose ?
Do I not somehow / somewhere have to assign a chosen address to the card?

To paraphrase tommylight here:

The mesa card is set for 192.168.1.121

You can use 192.168.1.XXX for you host PC address but
XXX must not be 0, 1,121 o 255

But do I not somehow have to assign the chosen address to the card ???

No, the card address is fixed at 192.168.1.121 if W6 is down
and 10.10.10.10 if W6 is up

You are assigning a fixed IP address to your host computer

Clearly I have my braces crossed !
So does my host computer not already have an IP address ??

So When I follow the instruction ""Configure network with static address
Add these lines to the file /etc/network/interfaces to configure eth1 with a static address:"" then I am assigning an IP address to the host computer which can have any 3 last digits of my own choosing as long as they are not one of the prohibited sets???

And do I change eth1 to enp2s0 ??
I have to say I am not yet following the logic of all this , but that does not really trouble me as long as i get the host to communicate with the mesa.