Good evening, running NW65SP7, would like to setup zones as follows.

lan.mycompany.com
office1.lan.mycompany.com
office2.lan.mycompany.com

Office1's DNS server would handle lan.mycompany.com and
office1.lan.mycompany.com.

Office 2 (remote site) DNS server would handle office2.lan.mycompany.com

Office 1's server and users are in eDir context OU=office1.O=companyname
Office 2's server and users are in eDir context OU=office2.O=companyname

The goal here is to be able to define internal DNS "A" records that apply to
the whole company regardless of office (so I'd set these up in
lan.mycompany.com zone), or apply to a particular office (so I'd set these
up in office1.lan.mycompany.com zone (or office2)), or in some cases there
would be an "A" record at the company level, but I may want to override it
with an "A" record at the office level.

What I'm wondering about is should I create the zone lan.mycompany.com at
eDir context O=companyname, then the zone office1.lan.mycompany.com at
OU=office1.O=companyname, and the zone office2.lan.mycompany.com at
OU=office2.O=companyname? Can the DNS server at office1 deal with this?
Further how would the DNS server at office2 know about the parent to its'
zone?

Appreciate any tips, thanks
James