Subnet, Pool, and Zone Declarations

[Merton Campbell Crockett]

Can a zone declaration appear within a pool or subnet declaration?

My company acquired an IP Address Management (IPAM) system.  One of  
its features is that it provides a place to store information about a  
system that, normally, would not be in a DNS zone file.  Another is  
that it provides a safe way to allow server administrators and site  
support personnel to make DNS changes.  Another feature is that it  
allows IT and Security personnel to see the DHCP lease assignments and  
identify which IP addresses are currently leased and by what systems.

My question involves this last feature.  At several sites, I have  
included a zone declaration inside a subnet or pool declaration.  The  
rationale for doing this was that the zones were unique and only to be  
used for systems that were leased addresses from the subnet or pool.   
DHCP 3.1.2p1 accepts this construct.

The vendor of the IPAM system has done a relatively good job of  
ensuring that the IPAM system conforms to DNS and DHCP standards;  
however, it won't process DHCP lease information when there is a zone  
declaration within a subnet or pool declaration.

Is my usage of zone declaration within a subnet or pool declaration  
valid?  Does the vendor of the IPAM system have a "bug" in its  
implementation that needs to be corrected?


Merton Campbell Crockett
m.c.crockett at roadrunner.com