Can't Get Dynamic Address from one pool when device is configured as Fixed Address on other, separate pool.

[matt.fura at bt.com]

Phil,

It does not.  Here are the full confs from both pools:

The /20:

subnet 130.x.x.0 netmask 255.255.240.0 {
	option subnet-mask 255.255.224.0 ; 
	option routers 130.x.x.1 ; 
	option domain-name-servers 10.x.x.x , 10.x.x.x ; 
	option domain-name "example.com" ; 
	option netbios-name-servers 10.x.x.x ; 
	option netbios-node-type 8 ; 
 	default-lease-time 86400 ;
	get-lease-hostnames False ;
	max-lease-time 86400 ;
	min-lease-time 500 ;
	ping-check True ;
	ping-timeout 2 ;
	pool {
		option subnet-mask 255.255.224.0 ; 
		option routers 130x.x.1 ; 
		option domain-name-servers 10.x.x.x , 10.x.x.x ; 
		option domain-name "example.com" ; 
		option netbios-name-servers 10.x.x.x ; 
		option netbios-node-type 8 ; 
		 authoritative ;
		ddns-updates False ;
		default-lease-time 1800 ;
		do-forward-updates False ;
		get-lease-hostnames False ;
		max-lease-time 1800 ;
		min-lease-time 1800 ;
		one-lease-per-client True ;
		ping-check True ;
		ping-timeout 2 ;
		update-optimization True ;
		use-host-decl-names False ;
		 allow unknown-clients ;

And the 'Dynamic' /24:

subnet 137.x.x.0 netmask 255.255.255.0 {
 	pool {
		option subnet-mask 255.255.255.0 ; 
		option routers 137.x.x.1 ; 
		option domain-name-servers 137.x.x.x ; 
		 authoritative ;
		ddns-updates False ;
		default-lease-time 1800 ;
		do-forward-updates False ;
		get-lease-hostnames False ;
		max-lease-time 1800 ;
		min-lease-time 1800 ;
		one-lease-per-client True ;
		ping-check True ;
		ping-timeout 2 ;
		update-optimization True ;
		use-host-decl-names False ;
		 allow unknown-clients ;
		range 137.x.x.30 137.x.x.254;
	
Regards,

Matthew Fura | Sr. TAC Engineer | BT Diamond IP | Office +1.610.280.2339 | Fax +1.610.423.4774 | http://bt.diamondip.com

-----Original Message-----
From: dhcp-users-bounces at lists.isc.org [mailto:dhcp-users-bounces at lists.isc.org] On Behalf Of Phil Mayers
Sent: Tuesday, November 18, 2014 11:54 AM
To: dhcp-users at lists.isc.org
Subject: Re: Can't Get Dynamic Address from one pool when device is configured as Fixed Address on other, separate pool.

On 18/11/14 16:51, matt.fura at bt.com wrote:

> The problem is, that, no matter what happens,  when a device is 
> configured for a 'Fixed Address' in the /20 pool, if that same client 
> tries to get a dynamic address from the smaller /24 (even if the 
> client

Does the pool have a "deny known hosts"?
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