I've installed Plan 9 in qemu on Linux as instructed here:
https://9p.io/wiki/plan9/Installing_Plan_9_on_Qemu/index.html

Now I'm in the process of converting it into a standalone cpu server.
I'm following the instructions given here:
https://9p.io/wiki/plan9/Configuring_a_Standalone_CPU_Server/index.html

I would like to configure a static IP address for the cpu server, so I
can drawterm into it from other machines on my home network.
My knowledge of networking is limited. I understand that I need to put this:
ip/ipconfig -g <gateway-addr> ether /net/ether0 <ip-addr> <ip-mask>

into my /cfg/$sysname/cpurc.

What I don't understand, and am asking for assistance with, is where
those three ip addresses in the example above have to come from. Do I
add them to the ethernet interface on the host system, or is there a
way to do this from within the Plan 9 system?

Thanks.
Alexander Kapshuk.