Re: lost dhcp on boot up

[Paul Schwartz]

Paul Schwartz wrote:

Paul Schwartz wrote:

Paul Schwartz wrote:



On Thu, Jan 01, 2004 at 09:11:39PM -0700, Paul Schwartz wrote:

>Try dhclient(8) manually from the command line.  If that doesn't 
work,
>try spying on the connection using tcpdump(8).  Punch your firewall
>properly.  That's what I'd do.  And please post the useful bits 
verbatim
>(e.g. that interfaces entry--who says it's not malformed?).
>
>The error messages are dmesg(8), ip(8)/ifconfig(8), tcpdump(8).
>

I tried executing dhclient; it just returns a prompt.  This is 
what tcpdump collects from eth0 when I execute dhclient




Great!  Now we know there is no DHCP traffic going out your box.  Only
some 802.1d bridge stuff. Bingo.
The configs look fine.

I'll be glad to to try other suggestions.




Go through the thread, and apply the suggestions already made :-)
E.g.:
% ifconfig a
% ip l
% ip a
% ip r
And: what was the dhclient's commandline?  (Read: Was it correct?)  
And
tcpdump's.  Post _with_ invocations. So again:

# dhclient -d eth0
# tcpdump -i eth0
--
Jan Minar                      "Please don't CC me, I'm 
subscribed." x 6

Thanks for your patience.  This is really a response the way you 
requested.  I understand the


Oops.  I meant NOT. 


that is, NOT the way you requested ;-)



value of that and was preparing it, when I found a message in the 
daemon.log with a dhclient complaint. [I can't quote it here because 
I'm on another machine]. It pointed out the need for CONFIG_PACKET 
and CONFIG_FILTER in the kernel compilation.  My kernel has the 
first but not the second.  I'm off to fix that before proceeding 
with the rest.

I'll be back!

Paul











Problem solved. Recompiling with CONFIG_FILTER set lets dhcp work.  I 
think they ought to change the recommendation in menuconfig; it kind of  
says it's not important and to set it to N if you're not sure.  Doesn't 
seem like a good choice; it oughtto at least mention its need for dhcp.

Thanks to all for the help.

Paul



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