RE: Dhclient problem

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>-----Original Message-----
>From: fedora-list-bounces@xxxxxxxxxx 
>[mailto:fedora-list-bounces@xxxxxxxxxx] On Behalf Of Wandell, Doug
>Sent: Tuesday, October 23, 2007 7:10 PM
>To: For users of Fedora
>Subject: RE: Dhclient problem
>
> 
>'prepend routers 0.0.0.0' in /etc/dhclient.conf works!  Thank you very
>much.  I'm guessing I can use an 'option router' statement in my
subnet
>declaration on the server side as well...?  I'll experiment.  Thanks
>again.
>DW

A bit of a correction:  This works for me only when there exists either
an /etc/dhclient-enter-hooks or /etc/dhclient-exit-hooks file
containing exactly this:

route add default dev eth0

Not sure exactly why this is, but it works.


>
>
>On Tue, 2007-10-23 at 18:25 -0400, Wandell, Doug wrote:
>> On Tue, 23 Oct 2007 17:37:10 -0400
>> "Wandell, Doug" <dwandell@xxxxxxxxx> took out a #2 pencil and
>> scribbled:
>> 
>> > I've rolled an FC6 live cd that configures eth0 via dhcp. The
>> > default configuration works fine
>> > - /etc/sysconfig/network-scripts/ifcfg-eth0: DEVICE=eth0
>> > ONBOOT=yes
>> > BOOTPROTO=dhcp
>> > HWADDR=<MAC address>
>> >  
>> > In Wireshark, I see the DHCP Discover, Offer, and ACK. No problem.
>> >  
>> > As soon as I add:
>> > DHCLIENTARGS="-s 192.168.1.100"
>> >  
>> > to /etc/sysconfig/network, dhclient hangs indefinitely. Using
>> > Wireshark on the dhcp server, I can see the DHCP Discover packets
>> > coming in, and the server's DHCP Offer response. But the FC box
>> > won't accept the offer.
>> >  
>> > Anybody know what's going on here?
>> 
>> Have you attempted to run dhclient in the foreground to see what
>> it's doing or possibly spitting to the terminal? Something like
>> 
>> dhclient -d -s 192.168.1.100 
>> 
>> This should force it to stay in the foreground and you can see what
>> is happening. I forget where dhclient logs. I
>> think /var/log/messages...but if you've been muckin' around a
>> lot you may have to grep for the dhclient entries.
>> 
>> -- 
>> ethericalzen@xxxxxxxxx
>> Life is a prison, death is a release
>> 
>> 
>> I'm making some progress - It looks like dhclient cannot reply to
the
>> server while running in -s mode due to the lack of a gateway being
>> configured.  I ran dhclient as you suggested - there was no output,
>but
>> while it hung, I issued a 'route add default dev eth0' in another
>> terminal and boom, it worked.
>> 
>> Somewhere in the back of my leaky brain I seem to remember a bug
>report
>> citing something similar.  Bugzilla is my next stop if I can't
figure
>> out how to coax dhclient into setting a gateway.
>
>You can add "prepend routers www.xxx.yyy.zzz" to /etc/dhclient.conf.
>
>----------------------------------------------------------------------
>- Rick Stevens, Principal Engineer             rstevens@xxxxxxxxxxxx -
>- CDN Systems, Internap, Inc.                http://www.internap.com -
>-                                                                    -
>-         C program run. C program crash. C programmer quit.         -
>----------------------------------------------------------------------
>
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