9fans archive / 2007 / 04 / 594 /    prev next

From: "Russ Cox" <rsc@swt...>
Subject: Re: [9fans] Re: new termrc
Date: Mon, 30 Apr 2007 11:42:39 -0400

> But that is ugly, as you now need to track the ethernet address in
> /lib/ndb/local and possibly in the DHCP configuration, when all the
> pertinent details can be obtained from the DHCP server.  Are there any
> philosophical reasons that the DHCP data, retrieved using ip/ipconfig,
> say, cannot at least supplement whatever may have been already set up
> by termrc (or cpurc)?  If there isn't I'll gladly look into it, DHCP
> isn't entirely alien to me.

The pertinent details cannot be obtained
from a non-Plan 9 DHCP server.
If you are using a Plan 9 DHCP server
then you are correct -- all the details
do get used from DHCP and no extra work
is necessary.  But it sounds like his DHCP
server is a random NAT box.

All you need to put in /lib/ndb/local in that
case is 

	sys=yourname ether=010203040506

and the DHCP info will be used (via /net/ndb,
which ipconfig fills in) for the rest.

Truth be told, when I set up a standalone
system I don't even bother doing this.  I just do

	sysname=foo
	echo -n foo >/dev/sysname

in cpurc before starting cs.  It doesn't really
matter one way or the other.

Russ