Fw: Undefine The Failover Protocol and DHCP Daemon can not Build successfully

[David W. Hankins]

On Thu, May 04, 2006 at 11:49:41PM +0800, Shu-Ping Lin wrote:
>     From time to time I can not get the IP from DHCP server. After sniffing 
> the packet I found that the DISCOVER, OFFER and REQUEST phases function 
> correctly, but finally the DHCP server will NAK the user's request. It 
> happened seldom and I do not know how to reproduce this problem and where 
> the problem is. So I just want to disable failover protocol to see if it 
> will happen again after that.

Well, you can do that without recompiling the daemon...it's just a
config change.

Ask on dhcp-users if you need help with that.

>     I have traced the code in dhcp.c, in particular the function 
> dhcprequest(). However, I still get any thought about this problem.
>     Does anyone have any idea or suggestion?

If the server NAKed the lease, it is either because something
changed that caused the server to deny the client permission to use
a given pool (do you use reject/allow statements?), or the server
believed the lease was assigned to a different client.

There was a failover bug fixed in 3.0.3, for example, where 'stale'
client identifiers would be left on leases.

-- 
David W. Hankins		"If you don't do it right the first time,
Software Engineer			you'll just have to do it again."
Internet Systems Consortium, Inc.		-- Jack T. Hankins