Abandoning ip address issue

[Peter Capriccio]

On 4/5/2014 Steven Carr wrote:
> Date: Sat, 5 Apr 2014 02:18:47 +0100
> From: Steven Carr<sjcarr at gmail.com>
> To: Users of ISC DHCP<dhcp-users at lists.isc.org>
> Subject: Re: Abandoning ip address issue
> Message-ID:
> 	<CALMep04N9255Hgv461J8URFROmr5ms+f729yvFr8QsCWt-7=1A at mail.gmail.com>
> Content-Type: text/plain; charset=UTF-8
>
> On 5 April 2014 01:48, Suresh Rajagopalan<sraja97 at gmail.com>  wrote:
>> >  Apr  4 13:59:04 gateway2 dhcpd: Abandoning IP address 192.168.109.235:
>> >  pinged before offer
> The IP address is in use. DHCPd wont lease out an IP that responds to
> a ping. You have manually configured clients in a DHCP range. Fix your
> network.
>
> Steve
A manually configured client may not be the problem, but seemingly more 
like a problem with the DHCP client (or configuration for the latter) -- 
in a recent reply I had mentioned that I see the same symptoms from 
certain clients -- we have some embedded systems on our network that use 
the udhcp 1.13.3 client and they consistently hold on to their 
DHCP-issued IP address and bring said address up on their interface 
following a reboot, so when they issue their discover, the ping-check 
comes back positive and their lease gets abandoned -- the discover cycle 
repeats until the client eventually removes the IP address from its 
interface and then a "normal" handshake completes. Just my two pesos...

Pete C.