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Date:      Sat, 8 Aug 1998 08:40:56 +1200
From:      "Dan Langille" <junkmale@xtra.co.nz>
To:        Doug White <dwhite@resnet.uoregon.edu>
Cc:        freebsd-questions@FreeBSD.ORG
Subject:   Re: DHCP configuration (was "changes to file are lost")
Message-ID:  <199808072040.IAA05754@cyclops.xtra.co.nz>
In-Reply-To: <Pine.BSF.4.00.9808061146170.28098-100000@resnet.uoregon.edu>
References:  <199807312331.LAA26654@cyclops.xtra.co.nz>

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On 6 Aug 98, at 11:50, Doug White wrote:

> > However, if I add single prepend commands to /etc/dhclient.conf before 
the 
> > interface "ep0" command, I do get partial success.  Here's what I 
supply 
> > and what I get:
> > 
> > prepend domain-name "mydomain.com";
> > prepend domain-name-servers 10.0.0.1;
> > 
> > gives:
> > 
> > search mydomain.commyisp.com
> > nameserver 10.0.0.10
> > nameserver 11.22.33.44	# my ISP
> > nameserver 11.22.33.45	# my ISP
> > 
> > This is strange.  There are references in the man pages that I can 
request 
> > that the DHCP server not send me certain information (i.e. the search 
> > statement), but it is not clear to me how to tell it that.
> > 
> > How do I eliminate the search command, replace it with "domain 
> > mydomain.com" and not have it suffixed with "myisp.com". 
> 
> Maybe prepend is the wrong keyword, or try
> 
> prepend domain-name "mydomain.com "
>            Note extra space      ^
> 
> Hint: dhclient's magic is done via a script, /etc/dhclient-script. If you
> don't want both in the search path then use the `supercede' keyword
> instead of `prepend'.

I tried the extra space and got:

search mydomain.com myisp.com

Then I tried the supersede instead of prepend and got:

search mydomain.com

Which is not quite what I wanted (domain mydomain.com), but at least my 
system will be running after a reboot.

But reading man resolv.conf shows that "search" should be sufficient 
instead of "domain" as the hostname in question contains "mydomain.com".

> > Another issue is that after initiating dhclient edo, I must manullay 
redo 
> > my ed1 details via ifconfig ed1 10.0.0.5 255.255.255.0.  Is that to be 
> > expected?
> 
> No.  dhclient configures all Ethernet interfaces by default, but you can
> specify with interfaces to listen on via the command line, like
> 
> dhclient ep0  
> 
> to specifically listen on ep0.

This is interesting.  I have ed0 (outside world) and ed1 (my subnet) on 
this box.  If I issue "dhclient ed0", ed1 is also reconfigured and I must 
issue "ifconfig ed1 10.0.0.5 255.255.255.0" before comms work again .  
This appears to conflict with the man pages on dhclient.  Any ideas?

> > BTW: I notice that if I change the 'interface "epo" {' to be 
'interface 
> > "ed0" {', things still work.  It's always been ep0, and worked.  I 
would 
> > have thought it should have to be ed0 in order to work.
> 
> Perhaps you have both?

I have only ed1 and ed0.  No 3Com cards in this box.  OK.  I give up.  
Perhaps dhclient didn't find ep0 but found ed0, so it configured that.

--
Dan Langille
DVL Software Limited
http://www.dvl-software.com/freebsd : my [mis]adventures

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