You could use private network addresses (10.0.0.0/8,  172.16.0.0/12 or
192.168.0.0/16). Your /lib/ndb/local file can then be setup around a subnet
like 192.168.9.0/24.  According to the following, qemu uses 10.0.2.0/24
when using "user mode networking" and provides a virtual dhcp (10.0.2.2),
dns (10.0.2.3) and cifs (10.0.2.4).  Using "tap" mode, you get to pick the
subnet in qemu-ifup script.

https://en.wikibooks.org/wiki/QEMU/Networking


On Fri, Jul 6, 2018 at 9:43 AM Alexander Kapshuk <
alexander.kapshuk@gmail.com> wrote:

> 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.
>
>