Issue: The Active Directory integrated DNS zone _msdcs.Domain.com was not found.

Hi All,

My set up is:

Head Office: 

DC1 - Server 2008 R2 (10.1.*.*/23)

DC2 - Server 2008 R2 (10.1.*.*/23)

MPLS Link to Branch Office

DC3 - Server 2008 R2 (192.168.10.*/24)

All 3 DC's also do DNS.

On all 3 DNS Servers i am getting the below error when scanning the DNS Role;



when i open DNS Server and check Forward Lookup Zones MSDCS is under the main domain but not as a separate one:

This is the same on all DNS Servers.

I was trying to follow this guide: http://technet.microsoft.com/en-us/library/ff807395(WS.10).aspx

but since it is not on any DNS Server, what would i backup? how would it replicate

Thanks in advance